MMO\core\shell

MMO\core\shell · 64 symbols · generated 5 Oct 2026

function

ask

Ask input from the user

function ask(string $message, ?array $options = null, ?string $default = null): ?string

Namespace: MMO\core\shell

$message	string	the message to display
$options = null	null \| array	`read`
$default = null	null \| string	the default value to return
returns	null \| string	the command. null if the user has pressed escape. empty string if nothing was typed

$name = ask('What is your name?', null, 'Anonymous'); // e.g. 'Marc' if the user typed "Marc"

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read

Used by (5)

function

characters

shell.php:217

Split a text into the characters a terminal shows, one column each: a character is one whatever its bytes (UTF-8), and a letter followed by a combining accent is one character too. A text that is not valid UTF-8 is split into bytes.

function characters(string $text): array

Namespace: MMO\core\shell

The text must hold no ANSI sequence: its bytes would be counted as characters ([`splitANSI`](https://mcp.mmoframework.fr/documentation/mmo.core/php/shell.md#splitansi)).

$text	string
returns	array

characters('déjà') === ['d', 'é', 'j', 'à']

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Used by (3)

function

choose

shell.php:1224

Ask for one of a few choices, listed one per line and numbered, with what each one means.

function choose(string $message, array $options, string|int|null $default = null): string|int|null

Namespace: MMO\core\shell

The answer is a number, a key, or the start of a single key; ENTER answers the default. Anything else is refused, and asked again when there is someone at a terminal to answer ([`prompt`](https://mcp.mmoframework.fr/documentation/mmo.core/php/shell.md#prompt)).

$message	string	the question
$options	array	key => what choosing it means, or a list of keys
$default = null	string \| int \| null	the key ENTER answers
returns	string \| int \| null	the chosen key. null when there was no valid answer (`prompt`)

choose('How does it let you in?', ['agent' => 'your ssh agent holds the key', 'key' => 'a key file'], 'agent'); // - How does it let you in? // 1) agent your ssh agent holds the key // 2) key a key file // [agent] > // returns 'key' when the user types "2", "key" or "k"

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function

colorCard

shell.php:2037

Print a table with a preview of every SHELL_* color/style constant. Useful to check what your terminal supports.

function colorCard(): string

Namespace: MMO\core\shell

returns

string

echo colorCard(); // prints a table with one row per SHELL_* color, each showing a small colored swatch

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table

function

columns

shell.php:1460

Attempt to get the number of columns of the current terminal

function columns(): int|false

Namespace: MMO\core\shell

returns

int | false

false if it cannot detect the number of columns

columns(); // e.g. 120 in a 120-column-wide terminal. false when run outside of a real tty (no $TERM)

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windowsConsoleSize

Used by (4)

function

commandExists

shell.php:412

Tells if a command is available and executable on the current system

function commandExists(string $command): bool

Namespace: MMO\core\shell

$command	string
returns	bool

commandExists('php') === true

commandExists('this-command-does-not-exist') === false

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escape

Used by (1)

TestRunner::getBinary

function

confirm

shell.php:1141

Ask the user for a confirmation

function confirm(string $message, bool $default = true): ?bool

Namespace: MMO\core\shell

$message	string
$default = true	bool	what ENTER answers, shown in brackets. Make it false when a yes is hard to undo
returns	null \| bool	true/false for yes/no, null if the user pressed ESC or nobody answered (`read`)

$ok = confirm('Delete this file?'); // e.g. true if the user typed "y" (or pressed ENTER, since "y" is the default)

$ok = confirm('Overwrite it?', false); // false when the user just presses ENTER

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Uses (1)

read

Used by (1)

AdminController::route_buildClean

function

diff

shell.php:1937

The differences between two texts, line by line, the way diff -u shows them: a removed line in red after a -, an added one in green after a +, each change among a few unchanged lines around it, and before each group an @@ line saying where it is. Ready to print, so that a change to a file is read before it is made.

function diff(string $old, string $new, int $context = 3): string

Namespace: MMO\core\shell

$old	string
$new	string
$context = 3	int	how many unchanged lines to show around a change
returns	string	'' when both texts have the same lines

echo diff("a\nb\nc\n", "a\nB\nc\n"); // @@ -1,3 +1,3 @@ // a // -b // +B // c

function

error

shell.php:1371

Print an error message, prefixed with '!! ' in red. $message is rendered through

function error(string $message, array $context = []): void

Namespace: MMO\core\shell
See: printf, so {key} placeholders are replaced with $context values.

$message	string
$context = []	array
returns	void

error('Connection to {host} failed', ['host' => 'db01']); // prints "!! Connection to db01 failed" in red

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printf

Used by (1)

AdminController::route_phpinfo

function

escape

shell.php:1712

Escapes a string to be used as an argument and qotes it.

function escape( ?string $arg, bool $force = false, bool $isWin = MMO\core\shell\IS_WINDOWS ): string

Namespace: MMO\core\shell

If it is only one word, it is not quoted Set force = true to force quote SECURITY NOTE: on POSIX (`$isWin = false`), this now wraps in SINGLE quotes with `'\''`-style escaping of any embedded single quote (the same technique `escapeshellarg()` uses) -- it used to wrap in double quotes instead, which does NOT stop a POSIX shell from still interpreting `$(...)`/backtick command substitution (and some backslash escapes) inside the "escaped" value. This was a real, confirmed command-injection hole: `escape("hello\$(touch /tmp/pwned)world")` used to return `"hello$(touch /tmp/pwned)world"`, and running that through a real shell executed the injected command -- the double-quote wrapping provided no protection at all. Single-quote wrapping is the only reliable way to fully neutralize shell interpretation of the escaped value's content. The Windows (`$isWin = true`) path is unchanged: cmd.exe has no `$(...)`/backtick substitution to begin with (that's a POSIX shell feature), so it wasn't exposed to this specific vulnerability, and cmd.exe's own quoting rules don't support POSIX-style single-quote escaping at all.

$arg	null \| string	the argument that will be escaped
$force = false	bool	if false won't quote the argument unless it needs to.
$isWin = MMO\core\shell\IS_WINDOWS	bool	if true, escape for windows command line. Else escape for shell
returns	string

escape('simple') === 'simple' // no special characters: left untouched, not quoted

escape('has space') === "'has space'" // needs quoting because of the space

escape(null) === '""' // null/empty is always quoted, so it survives as an empty argument

escape('simple', true) === "'simple'" // $force=true always quotes, even when not strictly needed

escape("it's") === "'it'\\''s'" // an embedded single quote is closed, escaped, and reopened

escape('$(touch /tmp/x)') === "'\$(touch /tmp/x)'" // wrapped in single quotes: inert, not executed

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function

evalColors

shell.php:372

Used to put shell colors directly into a text Any SHELL_* colors must be in brackets to be replaced

function evalColors(string $text): string

Namespace: MMO\core\shell

$text	string
returns	string

`{SHELL_RED}this is a red text{SHELL_FLUSH}`

function

exec

shell.php:1772

Execute a command through php exec, serializing the parameters passed

function exec(string $command, bool $throwException = true, ?int &$exitCode = null): string

Namespace: MMO\core\shell

$command	string	the command to execute
$throwException = true	bool	if true, will throw eRuntime if exit code > 0
$exitCode = null	null \| int	the returned exit code
returns	string	the output of the command

exec('echo hello') === 'hello'

exec('exit 1', false, $exitCode); // returns '' and sets $exitCode = 1, instead of throwing

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Used by (5)

function

execInBackground

shell.php:1786

Launch a command in the background (fire and forget), serializing the parameters passed

function execInBackground(string $command, bool $isWin = MMO\core\shell\IS_WINDOWS): void

Namespace: MMO\core\shell

$command	string	the command to execute
$isWin = MMO\core\shell\IS_WINDOWS	bool	force the execution in WINDOWS or SHELL
returns	void

execInBackground('php long-running-task.php'); // returns immediately, the script keeps running detached

function

explain

shell.php:1416

Print a paragraph of explanation, indented and wrapped to the terminal (100 columns at most), so that it reads as prose rather than as lines running off the screen.

function explain(string $text, int $indent = 2): void

Namespace: MMO\core\shell

Text between backticks -- a command, a file, a key -- is highlighted (the backticks stay where there is no color). Line breaks are kept. A line starting with `$ ` is a command to copy and is never wrapped; the lines a list item wraps onto start under its text, not under its bullet (`- `, `* `, `1. `).

$text	string
$indent = 2	int	spaces before every line
returns	void

explain('Load your key once per session with `ssh-add ~/.ssh/id_ed25519`.'); // prints " Load your key once per session with ssh-add ~/.ssh/id_ed25519.", the command in cyan

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function

getCursor

shell.php:575

Get the current position of the terminal cursor

function getCursor(): ?array

Namespace: MMO\core\shell

returns

null | array

int, 1: int}|null [line, column]. null if the terminal did not answer the position report

[$line, $col] = getCursor()??[null, null]; // e.g. [12, 1] when the cursor is at the start of line 12

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function

getEnv

shell.php:1563

Alias to getenv(). Return null instead of false in case value is not set in the env

function getEnv(?string $key = null): array|string|null

Namespace: MMO\core\shell

$key = null	null \| string	if null, return every env variable
returns	array \| string \| null

getEnv('PATH'); // e.g. '/usr/local/bin:/usr/bin:/bin'

getEnv('THIS_VAR_IS_NOT_SET') === null

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function

getInput

shell.php:470

The stream user input is read from.

function getInput()

Namespace: MMO\core\shell

returns the one given to setInput, else STDIN

fgets(getInput()); // the next line the user typed, or the next line of the stream given to setInput()

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function

heading

shell.php:1398

Print a title: set apart from what comes before it by a blank line, and ruled across the terminal (100 columns at most) -- how the steps of a long run are told apart at a glance.

function heading(string $title, string $subtitle = ''): void

Namespace: MMO\core\shell

$title	string
$subtitle = ''	string	printed after it, dimmed
returns	void

heading('Step 2 of 7: servers', 'the machines targets live on'); // (a blank line) // Step 2 of 7: servers the machines targets live on // ─────────────────────────────────────────────────── (across the terminal)

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columns

function

hideCursor

shell.php:191

function hideCursor(): void

Namespace: MMO\core\shell

returns

void

function

isInteractive

shell.php:484

Tells if the answers are typed by someone at a terminal, rather than read from a pipe, a file or a stream given to setInput. Only a terminal has keys: without one, input is read a whole line at a time, and an answer that is not valid cannot be typed again.

function isInteractive(): bool

Namespace: MMO\core\shell

returns

bool

isInteractive(); // true in a terminal, false for `echo y | php script.php`

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getInput

Used by (7)

function

isRunning

shell.php:426

Tells if a process with the given PID is currently running.

function isRunning(string|int $pid): bool

Namespace: MMO\core\shell

$pid	string \| int
returns	bool

isRunning(getmypid()) === true // the current process is always running

isRunning(999999) === false // (assuming no process has this pid)

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function

isTty

shell.php:1538

Tells if the current terminal is a tty (native terminal device)

function isTty(): bool

Namespace: MMO\core\shell

returns

bool

isTty(); // e.g. true when run in an interactive shell, false when run non-interactively (e.g. a cron job)

function

lengthANSI

shell.php:229

Get length of a text, removing ansi sequences: a character is counted as one whatever its bytes (UTF-8).

function lengthANSI(string $text): int

Namespace: MMO\core\shell

$text	string
returns	int

lengthANSI("\033[0;31mHello\033[0m") === 5 // the escape sequences are not counted

lengthANSI('● déjà…') === 7 // characters, not bytes

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Used by (5)

function

lines

shell.php:1473

Attempt to get the number of lines of the current terminal

function lines(): int|false

Namespace: MMO\core\shell

returns

int | false

false if it cannot detect the number of lines

lines(); // e.g. 30 in a 30-line-tall terminal. false when run outside of a real tty (no $TERM)

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windowsConsoleSize

Used by (1)

printInRect

function

moveBack

shell.php:187

function moveBack(int $count = 1): void

Namespace: MMO\core\shell

$count = 1	int
returns	void

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function

moveCursorCol

shell.php:190

function moveCursorCol(int $count): void

Namespace: MMO\core\shell

$count	int
returns	void

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function

moveCursorLine

shell.php:189

function moveCursorLine(int $count): void

Namespace: MMO\core\shell

$count	int
returns	void

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select

function

padANSI

shell.php:305

Pad string ingoring ANSI sequences

function padANSI( string $text, int $length, string $pad_string = ' ', int $pad_type = MMO\core\shell\STR_PAD_RIGHT ): string

Namespace: MMO\core\shell

$text	string
$length	int
$pad_string = ' '	string
$pad_type = MMO\core\shell\STR_PAD_RIGHT	int
returns	string

padANSI('AB', 5, '.') === 'AB...' // STR_PAD_RIGHT (default)

padANSI('AB', 5, '.', STR_PAD_LEFT) === '...AB'

padANSI('AB', 6, '.', STR_PAD_BOTH) === '..AB..'

padANSI('●', 3, '·') === '●··' // characters, not bytes

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function

parse

shell.php:1646

Parse a command line This command line option parser supports any combination of three types of options [single character options (-a -b or -ab or -c -d=dog or -cd=dog), long options (--foo or --bar=baz) and arguments (arg1 arg2)]

function parse(array|string $cmd): array

Namespace: MMO\core\shell
Author: Marc Mouret and Patrick Fisher <patrick@pwfisher.com>

$cmd	array \| string	the command
returns	array

$ php test.php --foo --bar=baz --spam eggs ["foo"] => true ["bar"] => "baz" ["spam"] => true [0] => "eggs"

$ php test.php -abc foo ["a"] => true ["b"] => true ["c"] => true [0] => "foo"

$ php test.php arg1 arg2 arg3 [0] => "arg1" [1] => "arg2" [2] => "arg3"

$ php test.php plain-arg --foo --bar=baz --funny="spam=eggs" --also-funny=spam=eggs 'plain arg 2' -abc -k=value "plain arg 3" --s="original" --s='overwrite' --s [0] => "plain-arg" ["foo"] => true ["bar"] => "baz" ["funny"] => "spam=eggs" ["also-funny"]=> "spam=eggs" [1] => "plain arg 2" ["a"] => true ["b"] => true ["c"] => true ["k"] => "value" [2] => "plain arg 3" ["s"] => "overwrite"

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Used by (1)

ShellArguments::setContent

function

printInRect

shell.php:2087

Print lines in a rectangle and returns text's positions in the rectangle This function is safe with ANSI sequences

function printInRect( array $lines, ?int $maxColCount = null, ?int $maxLineCount = null, string $colDelimiter = ' ' ): array

Namespace: MMO\core\shell

$lines	array	a list of texts
$maxColCount = null	null \| int	number max of columns
$maxLineCount = null	null \| int	number max of lines
$colDelimiter = ' '	string	delimiter between columns
returns	array	[ -1: [lineCount, lineLength, colCount, colLength], text index => [[line1, column1], [line2, column2], ...] ]
throws		if the texts cannot fit in the rectangle -- nothing is printed then (`select`)

printInRect(['Apple', 'Banana', 'Cherry', 'Date'], 12, 10); // prints, one item per line (they don't fit side by side in 12 columns): // Apple // Banana // Cherry // Date // and returns [-1 => [4, 6, 1, 8], 0 => [[0, 0]], 1 => [[1, 0]], 2 => [[2, 0]], 3 => [[3, 0]]]

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Used by (1)

select

function

progress

shell.php:1805

Print and redraw an in-place progress bar. Call repeatedly with an increasing $current to update it.

function progress(int $current, int $total, string $label = '', int $width = 30): void

Namespace: MMO\core\shell

$current	int	the current progress
$total	int	the total (100%) progress
$label = ''	string	an optional label printed after the bar
$width = 30	int	the width (in characters) of the bar itself
returns	void

for ($i = 0; $i <= 10; $i++) {progress($i, 10, 'downloading...');} // redraws in place: "[███████████████░░░░░░░░░░░░░░░] 50% downloading..." (at $i=5), reaching 100% at $i=10

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supportColor

function

prompt

shell.php:1176

Ask for a value, showing the one ENTER keeps, until the answer is a valid one.

function prompt(string $message, ?string $default = null, ?callable $validate = null): ?string

Namespace: MMO\core\shell

`-` alone answers with nothing: it is how an optional value that has a default is cleared. Without a terminal ([`isInteractive`](https://mcp.mmoframework.fr/documentation/mmo.core/php/shell.md#isinteractive)) an invalid answer is not asked again -- nobody is there to correct it, and the next line answers another question -- so it ends the question the way the end of the input does. At a terminal, only what is typed once the question is on screen answers it ([`read`](https://mcp.mmoframework.fr/documentation/mmo.core/php/shell.md#read)).

$message	string	the question
$default = null	null \| string	what ENTER answers, shown in brackets
$validate = null	null \| callable	fn(string $answer): ?string -- null when the answer is fine, otherwise why it is not, shown before the question is asked again
returns	null \| string	the answer, trimmed: '' for `-`, or for ENTER when there is no default. null when there was no valid answer: the input ended (Ctrl+D), or an invalid one came from something that is not a terminal

prompt('Project name', 'acme.portal'); // 'acme.portal' when the user just presses ENTER

prompt('Port', '22', fn(string $port) => ctype_digit($port)? null : 'a number, e.g. 22');

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promptList

function

promptList

shell.php:1199

Ask for a list of values, separated by commas.

function promptList(string $message, array $default = [], ?callable $validate = null): ?array

Namespace: MMO\core\shell

ENTER keeps the list shown in brackets, `-` alone answers an empty list.

$message	string	the question
$default = []	array	what ENTER answers
$validate = null	null \| callable	fn(array $answer): ?string, as for `prompt`
returns	null \| array	the values, trimmed, without empty ones. null when there was no valid answer (`prompt`)

promptList('Tags', ['staging']); // ['staging', 'eu'] when the user types "staging, eu"

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prompt

function

protectShellBuffering

shell.php:518

Install a SIGINT/SIGTERM safety net so the terminal is not left in raw/no-echo mode if the process is interrupted (e.g. Ctrl+C) while shell buffering is stopped. Without this, an interrupted read()/select()/ readCallback() leaves the user's terminal broken (no echo) since finally blocks never run on a signal.

function protectShellBuffering(): void

Namespace: MMO\core\shell

Installed automatically (and only once) by [`stopShellBuffering`](https://mcp.mmoframework.fr/documentation/mmo.core/php/shell.md#stopshellbuffering). No-op if the pcntl extension is unavailable.

returns

void

protectShellBuffering(); // usually not called directly: stopShellBuffering() does this for you

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stopShellBuffering

function

read

shell.php:705

Read a command from the user input.

function read(?array $options = null, ?string $default = null): ?string

Namespace: MMO\core\shell

Available key bindings: ESC: return null Tab: list available commands At a terminal the answer is typed key by key, and an option is taken the moment it is typed, without ENTER. Only keys typed once the prompt is on screen count: those typed before it -- the ENTER after a one-letter answer to the previous question -- are dropped, as are those left once the answer is complete. Keys that arrive together (a paste, fast typing, keys sent in one go over ssh) are taken one at a time, an escape sequence (an arrow) whole. Without a terminal (a pipe, a file, a stream given to [`setInput`](https://mcp.mmoframework.fr/documentation/mmo.core/php/shell.md#setinput)) there are no keys, only lines: the next line is the answer, matched against $options exactly or by the start of a single one of them -- and, when every option is one letter, by its first letter, so `yes` answers `y`. A line that matches none is refused rather than asked for again: nobody is there to type it again, and the next line answers another question.

$options = null	null \| array	possible options: if given, they are auto-completed as the user types and can be navigated with the up/down arrow keys
$default = null	null \| string	returned if the user presses ENTER without typing anything. Shown in brackets
returns	null \| string	the command. null if the user has pressed escape or the input has ended -- nobody answered, so neither is an answer, the default included -- or, without a terminal, if the line matched none of $options. empty string if nothing was typed

$cmd = read(['start', 'stop', 'status'], 'status'); // e.g. $cmd === 'start' if the user typed "start"

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function

readAnswer

internalshell.php:1262

Show what ENTER answers, then read the answer.

function readAnswer(?string $default): ?string

Namespace: MMO\core\shell

At a terminal, what was typed before the question is dropped first: it is no answer to it ([`read`](https://mcp.mmoframework.fr/documentation/mmo.core/php/shell.md#read)).

$default	null \| string
returns	null \| string	the answer, trimmed: $default for ENTER alone, '' for `-` alone. null when the input has ended

readAnswer('22'); // prints " [22] > ", then returns '22' for an empty line

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function

readCallback

shell.php:599

Read every key press by the user on the command line (as opposed to fgets which waits on return key)

function readCallback(callable $fn, bool $echo = true): string

Namespace: MMO\core\shell

$fn	callable	($char, $current_user_input): string\|false. The closure SHOULD return the new user input. The closure MUST return false to stop the user input or a string started with \0
$echo = true	bool	if false, no characters are printed on the screen
returns	string	the complete user input

//reads digits only, stops (and discards the last keypress) as soon as 4 digits have been typed readCallback(function (string $c, string $text) { if (!ctype_digit($c)) {return $text;}// ignore non-digit keys $text .= $c; return (strlen($text) >= 4)? ("\0" . $text) : $text;// "\0" prefix stops reading once complete });

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readSecret

function

readKeys

shell.php:672

Wait for the user to press a key, then read it with every key that came with it -- a paste, fast typing, keys sent in one go over ssh -- one string for each: a character, or a whole escape sequence (the up arrow is "\e[A").

function readKeys(): array

Namespace: MMO\core\shell

At a terminal out of line buffering ([`stopShellBuffering`](https://mcp.mmoframework.fr/documentation/mmo.core/php/shell.md#stopshellbuffering)): in it, nothing comes before ENTER.

returns

array

the keys, in the order they were typed. empty when the input has ended

stopShellBuffering(); $keys = readKeys(); // ['y', "\n"] for `y` and ENTER typed in one go, ["\e[A"] for the up arrow restoreShellBuffering();

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read

function

readLine

shell.php:497

Read one line of user input, without its line ending.

function readLine(bool $echo = true): ?string

Namespace: MMO\core\shell

At a terminal the line is typed and corrected as the terminal allows (backspace, paste) and ENTER ends it. Anywhere else it is the next line of the input, and it is echoed, so that a transcript shows each answer beside its question.

$echo = true	bool	false to never print the line (a secret)
returns	null \| string	the line. null when the input has ended (Ctrl+D at a terminal)

$name = readLine(); // 'marc' after the user typed "marc" then ENTER

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function

readOption

internalshell.php:853

The half of read that has no terminal to read keys from: the next line of the input is the answer.

function readOption(?array $options, ?string $default): ?string

Namespace: MMO\core\shell

$options	null \| array	what read() was given, sorted
$default	null \| string
returns	null \| string	the answer, null when the input has ended or the line matches none of $options

readOption(['n', 'y'], 'y'); // 'y' for a line "yes", or an empty line

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readLine

Used by (1)

read

function

readPending

shell.php:635

Take what the user has typed that nothing has read yet, without waiting for more -- or, given a timeout, waiting that long at most for a first key. Every question drops it before asking (read, prompt, choose,

function readPending(float $timeout = 0.0): string

Namespace: MMO\core\shell
See: readSecret): keys typed before a question is on screen are no answer to it. At a terminal only: nothing else can be asked whether something is waiting, and gives ''. Out of line buffering (stopShellBuffering) that is every key typed; in it, the lines ENTER has ended.

$timeout = 0.0	float	seconds to wait for a first key when none is waiting. 0: not at all
returns	string	what was typed, '' if nothing was

stopShellBuffering(); readPending(); // e.g. "\n": the ENTER typed after a one-letter answer, which needed none restoreShellBuffering();

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getInput

Used by (4)

function

readSecret

shell.php:1293

Ask for a secret (e.g. a password) from the user. The typed characters are never echoed by the terminal itself.

function readSecret(string $message, ?string $mask = '*'): ?string

Namespace: MMO\core\shell

At a terminal, what was typed before the question is on screen is dropped: it is no answer to it ([`read`](https://mcp.mmoframework.fr/documentation/mmo.core/php/shell.md#read)).

$message	string	the message to display
$mask = '*'	null \| string	a single character to display in place of each typed character, for feedback. null to display nothing at all.
returns	null \| string	the secret typed by the user. null when the input ended before ENTER: half a secret is not one

$password = readSecret('Password'); // the user sees "- Password > ****" as they type, $password holds the real value

$password = readSecret('Password', null); // nothing at all is echoed as the user types

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function

removeANSI

shell.php:204

Strip ANSI escape sequences (colors, cursor movement, ...) from a text, leaving only the visible characters.

function removeANSI(string $text): string

Namespace: MMO\core\shell

$text	string
returns	string

removeANSI("\033[0;31mHello\033[0m") === 'Hello'

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Used by (3)

function

restoreShellBuffering

shell.php:563

Undo one call to stopShellBuffering. Calls nest: buffering is only actually restored once every stopShellBuffering() call has a matching restoreShellBuffering() call.

function restoreShellBuffering(): bool

Namespace: MMO\core\shell

returns bool false if buffering was already fully restored (nothing to do), or if stty itself failed

restoreShellBuffering(); // see stopShellBuffering() for a full example

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function

say

shell.php:1347

Print an informational message, prefixed with '- ' in purple. $message is rendered through

function say(string $message, array $context = []): void

Namespace: MMO\core\shell
See: printf, so {key} placeholders are replaced with $context values.

$message	string
$context = []	array
returns	void

say('Deploy {status}', ['status' => 'complete']); // prints "- Deploy complete" in purple

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printf

Used by (7)

function

select

shell.php:891

Print a menu of choices and return the keys of the selected options

function select( string $title, array $options, ?int $min = null, ?int $max = null, array $selection = [] ): ?array

Namespace: MMO\core\shell

$title	string	the title of the menu
$options	array	{value => text} or [...value]
$min = null	null \| int	minimum number of options the user must select before ENTER is accepted
$max = null	null \| int	maximum number of options that can be selected; selection stops automatically once reached. 1 is a single choice (`menu`): selecting an option replaces the one selected before, and ends it
$selection = []	array	the keys of $options that start out pre-selected
returns	null \| array	the selected keys of $options. null if escape was pressed, or if the options do not fit the terminal and the input has ended

$picked = select('Pick fruits', ['apple' => 'Apple', 'pear' => 'Pear'], 1, 2); // e.g. ['apple'] if the user selected only Apple then pressed ENTER

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Uses (7)

Used by (1)

function

serialize

shell.php:1739

Serialize the command All parameters with no string key (plain args) are left untouched (no escape).

function serialize( array $cmd, string $long = '=', string $short = '=', bool $isWin = MMO\core\shell\IS_WINDOWS ): string

Namespace: MMO\core\shell

The rest is escaped.

$cmd	array	the command arguments
$long = '='	string	the separator for long argument (--xxx)
$short = '='	string	the separator for short argument (-x)
$isWin = MMO\core\shell\IS_WINDOWS	bool	escape for windows command line if true, else escape for shell
returns	string

serialize(['foo' => true, 'bar' => 'baz', 0 => 'plain-arg', 'a' => true]) === '--foo --bar=baz plain-arg -a' // the round-trip counterpart of @see parse

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escape

Used by (2)

function

setCursor

shell.php:188

function setCursor(int $col, int $line = 0): void

Namespace: MMO\core\shell

$col	int
$line = 0	int
returns	void

function

setInput

shell.php:460

Read the user's answers from another stream than STDIN: a file of answers, or -- in a test -- a php://memory stream written beforehand. Every function reading user input reads from it (read, readLine,

function setInput($stream): void

Namespace: MMO\core\shell
See: prompt, choose, confirm, readSecret, readCallback, select, menu). select() and menu() read keys from it rather than lines, one read per key as a terminal gives them: a php://memory stream holding several keys hands them over four bytes at a time, and they run together.

$stream		null to read from STDIN again
returns	void

$answers = fopen('php://memory', 'w+'); fwrite($answers, "y\nmarc\n"); rewind($answers); setInput($answers); confirm('Continue?'); // true, read from $answers prompt('Your name'); // 'marc' setInput(null); // back to STDIN

function

showCursor

shell.php:192

function showCursor(): void

Namespace: MMO\core\shell

returns

void

function

sigchildEnabled

shell.php:1503

Tells if PHP has been compiled with the '--enable-sigchild' option.

function sigchildEnabled(): bool

Namespace: MMO\core\shell

returns

bool

sigchildEnabled(); // e.g. false on most standard PHP builds

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function

split

shell.php:1595

Split string on space, except for quoted words

function split(string $cmd): array

Namespace: MMO\core\shell

$cmd	string
returns	array

'plain-arg plain arg --foo --bar=baz --funny="spam=egg\\" s" --also-funny=spam=eggs \'plain arg 2\' -abc -k=value "plain arg 3" --s="original" --s=\'marc\\\'s good\' --s' [0] plain-arg [1] plain [2] arg [3] --foo [4] --bar=baz [5] --funny= [6] "spam=egg\"·s" [7] --also-funny=spam=eggs [8] 'plain·arg·2' [9] -abc [10] -k=value [11] "plain·arg·3" [12] --s= [13] "original" [14] --s= [15] 'marc\'s·good' [16] --s

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parse

function

splitANSI

shell.php:243

Split text ignoring ANSI sequences

function splitANSI(string $text, int $length, ?int $max = null): array

Namespace: MMO\core\shell

$text	string
$length	int
$max = null	null \| int	maximum number of splits
returns	array

splitANSI("\033[0;31mHelloWorld\033[0m", 5) === ["\033[0;31mHello", "World\033[0m"] // split every 5 visible characters, the color codes stay attached // to whichever chunk they were adjacent to

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Uses (1)

characters

Used by (3)

function

stopShellBuffering

shell.php:548

Stop shell line buffering so you can capture direct input from user, without waiting for a flush (ENTER)

function stopShellBuffering(bool $echo = false): bool

Namespace: MMO\core\shell

$echo = false	bool	if false, no characters are printed on the screen
returns	bool	if false, shell could not be stopped from buffering -- or there is no terminal to stop (`isInteractive`).

stopShellBuffering(); // now fgetc(STDIN) returns as soon as a key is pressed, without waiting for ENTER $c = fgetc(STDIN); restoreShellBuffering(); // always pair with a matching restoreShellBuffering() call, e.g. in a finally block

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Uses (2)

Used by (6)

function

substrANSI

shell.php:281

substr() ignoring ANSI sequences: offset and length count visible characters, whatever their bytes (UTF-8).

function substrANSI(string $text, int $offset, ?int $length = null): string

Namespace: MMO\core\shell

$text	string
$offset	int
$length = null	null \| int
returns	string

substrANSI("\033[1mdéjà vu\033[0m", 0, 4) === "\033[1mdéjà" // the color codes stay attached

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Used by (1)

table

function

success

shell.php:1383

Print what went right, prefixed with '✔ ' in green. $message is rendered through

function success(string $message, array $context = []): void

Namespace: MMO\core\shell
See: printf, so {key} placeholders are replaced with $context values.

$message	string
$context = []	array
returns	void

success('wrote {file}', ['file' => 'deploy.json']); // prints "✔ wrote deploy.json" in green

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Uses (1)

printf

function

supportColor

shell.php:1486

Tells if the current output supports ANSI colors/escape sequences.

function supportColor(): bool

Namespace: MMO\core\shell

Can be forced by defining SHELL_ENABLE_COLORS or setting the SHELL_ENABLE_COLORS env variable.

returns

bool

supportColor(); // e.g. true when run interactively in a real terminal, false when output is piped/redirected

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getEnv

Used by (2)

function

supportPty

shell.php:1518

Tells if the current terminal support pty (pseudo terminal device).

function supportPty(): bool

Namespace: MMO\core\shell

returns

bool

supportPty(); // e.g. true on Linux/macOS, always false on Windows

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function

table

shell.php:1844

Make a table text WARNING: to make sure columns are ordered correctly, make sure last item has all the columns in the right order

function table(array $data, string $title = '', ?int $size = null): string

Namespace: MMO\core\shell

$data	array	(array(col1 => AA, col2 => AB), array(col1 => BA, col2 => BB)). Last item must have all the columns
$title = ''	string	table's title
$size = null	null \| int	table's size. use null to fit to content size
returns	string

echo table([['col1' => 'AA', 'col2' => 'AB'], ['col1' => 'BA', 'col2' => 'BB']], 'MyTitle'); // ┌ MyTitle ┐ // ├────┼────┤ // ├col1│col2┤ // ├────┼────┤ // ├ AA │ AB ┤ // ├────┼────┤ // ├ BA │ BB ┤ // ├────┼────┤ // └────┴────┘

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Uses (5)

Used by (3)

function

warning

shell.php:1359

Print a warning message, prefixed with '! ' in brown/yellow. $message is rendered through

function warning(string $message, array $context = []): void

Namespace: MMO\core\shell
See: printf, so {key} placeholders are replaced with $context values.

$message	string
$context = []	array
returns	void

warning('Disk usage at {pct}%', ['pct' => 90]); // prints "! Disk usage at 90%" in brown

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printf

function

windowsConsoleSize

internalshell.php:1444

Parse mode con's output (windows only).

function windowsConsoleSize(): ?array

Namespace: MMO\core\shell

`mode con` always reports lines then columns, in that fixed order, regardless of the system's locale.

returns

null | array

int, columns: int}|null null if it cannot be detected

windowsConsoleSize(); // e.g. ['lines' => 30, 'columns' => 120] on a 120x30 windows console

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function

wrapANSI

shell.php:336

Wrap a text so that no line is wider than $width visible characters -- an ANSI sequence takes no room, and a character is counted as one whatever its bytes (UTF-8).

function wrapANSI(string $text, int $width, string $break = MMO\core\shell\PHP_EOL): string

Namespace: MMO\core\shell

Lines break between words. A word wider than $width is not cut but gets a line of its own: a path or a url cut in two cannot be copied any more. The text's own line breaks are kept, and the indentation a line starts with is repeated on the lines it wraps onto.

$text	string
$width	int
$break = MMO\core\shell\PHP_EOL	string	what ends each line
returns	string

wrapANSI('the quick brown fox', 10) === "the quick\nbrown fox"

wrapANSI("\033[1mthe\033[0m quick", 9) === "\033[1mthe\033[0m quick" // 9 visible characters: one line

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Uses (2)

Used by (1)

explain

function

writeAt

shell.php:193

function writeAt(int $col, int $line, string $text): void

Namespace: MMO\core\shell

$col	int
$line	int
$text	string
returns	void

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select