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PhpProcess runs a PHP script in an independent process.

$p = new PhpProcess('<?php echo "foo"; ?>');
$p->run();
print $p->getOutput()."\n";

CloneableInstantiableIterable
Constants
public Symfony\Component\Process\Process::ERR = 'err'
public Symfony\Component\Process\Process::ITER_KEEP_OUTPUT = 2
public Symfony\Component\Process\Process::ITER_NON_BLOCKING = 1
public Symfony\Component\Process\Process::ITER_SKIP_ERR = 8
public Symfony\Component\Process\Process::ITER_SKIP_OUT = 4
public Symfony\Component\Process\Process::OUT = 'out'
public Symfony\Component\Process\Process::STATUS_READY = 'ready'
public Symfony\Component\Process\Process::STATUS_STARTED = 'started'
public Symfony\Component\Process\Process::STATUS_TERMINATED = 'terminated'
public Symfony\Component\Process\Process::STDERR = 2
public Symfony\Component\Process\Process::STDIN = 0
public Symfony\Component\Process\Process::STDOUT = 1
public Symfony\Component\Process\Process::TIMEOUT_PRECISION = 0.2
Properties
public static Symfony\Component\Process\Process::$exitCodes = ['OK', 'General error', 'Misuse of shell builtins', 126 => 'Invoked command cannot execute', 127 => 'Command not found', 128 => 'Invalid exit argument', 129 => 'Hangup', 130 => 'Interrupt', 131 => 'Quit and dump core', 132 => 'Illegal instruction', 133 => 'Trace/breakpoint trap', 134 => 'Process aborted', 135 => 'Bus error: "access to undefined portion of memory object"', 136 => 'Floating point exception: "erroneous arithmetic operation"', 137 => 'Kill (terminate immediately)', 138 => 'User-defined 1', 139 => 'Segmentation violation', 140 => 'User-defined 2', 141 => 'Write to pipe with no one reading', 142 => 'Signal raised by alarm', 143 => 'Termination (request to terminate)', 145 => 'Child process terminated, stopped (or continued*)', 146 => 'Continue if stopped', 147 => 'Stop executing temporarily', 148 => 'Terminal stop signal', 149 => 'Background process attempting to read from tty ("in")', 150 => 'Background process attempting to write to tty ("out")', 151 => 'Urgent data available on socket', 152 => 'CPU time limit exceeded', 153 => 'File size limit exceeded', 154 => 'Signal raised by timer counting virtual time: "virtual timer expired"', 155 => 'Profiling timer expired', 157 => 'Pollable event', 159 => 'Bad syscall']
 

Exit codes translation table.

User-defined errors must use exit codes in the 64-113 range.

Methods
public Symfony\Component\Process\Process::__clone()
public __construct(string $script, ?string $cwd = NULL, ?array $env = NULL, int $timeout = 60, ?array $php = NULL)
 
  • param string $script The PHP script to run (as a string)
  • param string|null $cwd The working directory or null to use the working dir of the current PHP process
  • param array|null $env The environment variables or null to use the same environment as the current PHP process
  • param int $timeout The timeout in seconds
  • param array|null $php Path to the PHP binary to use with any additional arguments
public Symfony\Component\Process\Process::__destruct()
public Symfony\Component\Process\Process::__sleep() : array
public Symfony\Component\Process\Process::__wakeup()
public Symfony\Component\Process\Process::addErrorOutput(string $line)
 

Adds a line to the STDERR stream.

  • internal
public Symfony\Component\Process\Process::addOutput(string $line)
 

Adds a line to the STDOUT stream.

  • internal
public Symfony\Component\Process\Process::checkTimeout()
 

Performs a check between the timeout definition and the time the process started.

In case you run a background process (with the start method), you should
trigger this method regularly to ensure the process timeout

  • throws \ProcessTimedOutException In case the timeout was reached
public Symfony\Component\Process\Process::clearErrorOutput() : static
 

Clears the process output.

  • return $this
public Symfony\Component\Process\Process::clearOutput() : static
 

Clears the process output.

  • return $this
public Symfony\Component\Process\Process::disableOutput() : static
 

Disables fetching output and error output from the underlying process.

  • return $this
  • throws \RuntimeException In case the process is already running
  • throws \LogicException if an idle timeout is set
public Symfony\Component\Process\Process::enableOutput() : static
 

Enables fetching output and error output from the underlying process.

  • return $this
  • throws \RuntimeException In case the process is already running
public static fromShellCommandline(string $command, ?string $cwd = NULL, ?array $env = NULL, ?mixed $input = NULL, ?float $timeout = 60) : static
public Symfony\Component\Process\Process::getCommandLine() : string
 

Gets the command line to be executed.

public Symfony\Component\Process\Process::getEnv() : array
 

Gets the environment variables.

public Symfony\Component\Process\Process::getErrorOutput() : string
 

Returns the current error output of the process (STDERR).

  • throws \LogicException in case the output has been disabled
  • throws \LogicException In case the process is not started
public Symfony\Component\Process\Process::getExitCode() : ?int
 

Returns the exit code returned by the process.

  • return int|null The exit status code, null if the Process is not terminated
public Symfony\Component\Process\Process::getExitCodeText() : ?string
 

Returns a string representation for the exit code returned by the process.

This method relies on the Unix exit code status standardization
and might not be relevant for other operating systems.

  • return string|null A string representation for the exit status code, null if the Process is not terminated
  • see http://tldp.org/LDP/abs/html/exitcodes.html
  • see http://en.wikipedia.org/wiki/Unix_signal
public Symfony\Component\Process\Process::getIdleTimeout() : ?float
 

Gets the process idle timeout in seconds (max. time since last output).

public Symfony\Component\Process\Process::getIncrementalErrorOutput() : string
 

Returns the errorOutput incrementally.

In comparison with the getErrorOutput method which always return the
whole error output, this one returns the new error output since the last
call.

  • throws \LogicException in case the output has been disabled
  • throws \LogicException In case the process is not started
public Symfony\Component\Process\Process::getIncrementalOutput() : string
 

Returns the output incrementally.

In comparison with the getOutput method which always return the whole
output, this one returns the new output since the last call.

  • throws \LogicException in case the output has been disabled
  • throws \LogicException In case the process is not started
public Symfony\Component\Process\Process::getInput()
 

Gets the Process input.

  • return resource|string|\Iterator|null
public Symfony\Component\Process\Process::getIterator(int $flags = 0) : Generator
 

Returns an iterator to the output of the process, with the output type as keys (Process::OUT/ERR).

  • param int $flags A bit field of Process::ITER_* flags
  • return \Generator<string,string>
  • throws \LogicException in case the output has been disabled
  • throws \LogicException In case the process is not started
public Symfony\Component\Process\Process::getLastOutputTime() : ?float
 

Gets the last output time in seconds.

public Symfony\Component\Process\Process::getOutput() : string
 

Returns the current output of the process (STDOUT).

  • throws \LogicException in case the output has been disabled
  • throws \LogicException In case the process is not started
public Symfony\Component\Process\Process::getPid() : ?int
 

Returns the Pid (process identifier), if applicable.

  • return int|null The process id if running, null otherwise
public Symfony\Component\Process\Process::getStartTime() : float
 
  • throws \LogicException in case process is not started
public Symfony\Component\Process\Process::getStatus() : string
 

Gets the process status.

The status is one of: ready, started, terminated.

public Symfony\Component\Process\Process::getStopSignal() : int
 

Returns the number of the signal that caused the child process to stop its execution.

It is only meaningful if hasBeenStopped() returns true.

  • throws \LogicException In case the process is not terminated
public Symfony\Component\Process\Process::getTermSignal() : int
 

Returns the number of the signal that caused the child process to terminate its execution.

It is only meaningful if hasBeenSignaled() returns true.

  • throws \RuntimeException In case --enable-sigchild is activated
  • throws \LogicException In case the process is not terminated
public Symfony\Component\Process\Process::getTimeout() : ?float
 

Gets the process timeout in seconds (max. runtime).

public Symfony\Component\Process\Process::getWorkingDirectory() : ?string
 

Gets the working directory.

public Symfony\Component\Process\Process::hasBeenSignaled() : bool
 

Returns true if the child process has been terminated by an uncaught signal.

It always returns false on Windows.

  • throws \LogicException In case the process is not terminated
public Symfony\Component\Process\Process::hasBeenStopped() : bool
 

Returns true if the child process has been stopped by a signal.

It always returns false on Windows.

  • throws \LogicException In case the process is not terminated
public Symfony\Component\Process\Process::isOutputDisabled() : bool
 

Returns true in case the output is disabled, false otherwise.

public Symfony\Component\Process\Process::isPty() : bool
 

Returns PTY state.

public static Symfony\Component\Process\Process::isPtySupported() : bool
 

Returns whether PTY is supported on the current operating system.

public Symfony\Component\Process\Process::isRunning() : bool
 

Checks if the process is currently running.

public Symfony\Component\Process\Process::isStarted() : bool
 

Checks if the process has been started with no regard to the current state.

public Symfony\Component\Process\Process::isSuccessful() : bool
 

Checks if the process ended successfully.

public Symfony\Component\Process\Process::isTerminated() : bool
 

Checks if the process is terminated.

public Symfony\Component\Process\Process::isTty() : bool
 

Checks if the TTY mode is enabled.

public static Symfony\Component\Process\Process::isTtySupported() : bool
 

Returns whether TTY is supported on the current operating system.

public Symfony\Component\Process\Process::mustRun(?callable $callback = NULL, array $env = []) : static
 

Runs the process.

This is identical to run() except that an exception is thrown if the process
exits with a non-zero exit code.

  • return $this
  • throws \ProcessFailedException if the process didn't terminate successfully
  • final
public Symfony\Component\Process\Process::restart(?callable $callback = NULL, array $env = []) : static
 

Restarts the process.

Be warned that the process is cloned before being started.

  • param callable|null $callback A PHP callback to run whenever there is some
    output available on STDOUT or STDERR
  • throws \RuntimeException When process can't be launched
  • throws \RuntimeException When process is already running
  • see \start()
  • final
public Symfony\Component\Process\Process::run(?callable $callback = NULL, array $env = []) : int
 

Runs the process.

The callback receives the type of output (out or err) and
some bytes from the output in real-time. It allows to have feedback
from the independent process during execution.

The STDOUT and STDERR are also available after the process is finished
via the getOutput() and getErrorOutput() methods.

  • param callable|null $callback A PHP callback to run whenever there is some
    output available on STDOUT or STDERR
  • return int The exit status code
  • throws \RuntimeException When process can't be launched
  • throws \RuntimeException When process is already running
  • throws \ProcessTimedOutException When process timed out
  • throws \ProcessSignaledException When process stopped after receiving signal
  • throws \LogicException In case a callback is provided and output has been disabled
  • final
public Symfony\Component\Process\Process::setEnv(array $env) : static
 

Sets the environment variables.

  • param (string|\Stringable)[] $env The new environment variables
  • return $this
public Symfony\Component\Process\Process::setIdleTimeout(?float $timeout) : static
 

Sets the process idle timeout (max. time since last output) in seconds.

To disable the timeout, set this value to null.

  • return $this
  • throws \LogicException if the output is disabled
  • throws \InvalidArgumentException if the timeout is negative
public Symfony\Component\Process\Process::setInput(?mixed $input) : static
 

Sets the input.

This content will be passed to the underlying process standard input.

  • param string|int|float|bool|resource|\Traversable|null $input The content
  • return $this
  • throws \LogicException In case the process is running
public Symfony\Component\Process\Process::setOptions(array $options)
 

Defines options to pass to the underlying proc_open().

  • see https://php.net/proc_openfor the options supported by PHP.

    Enabling the "create_new_console" option allows a subprocess to continue
    to run after the main process exited, on both Windows and *nix
public Symfony\Component\Process\Process::setPty(bool $bool) : static
 

Sets PTY mode.

  • return $this
public Symfony\Component\Process\Process::setTimeout(?float $timeout) : static
 

Sets the process timeout (max. runtime) in seconds.

To disable the timeout, set this value to null.

  • return $this
  • throws \InvalidArgumentException if the timeout is negative
public Symfony\Component\Process\Process::setTty(bool $tty) : static
 

Enables or disables the TTY mode.

  • return $this
  • throws \RuntimeException In case the TTY mode is not supported
public Symfony\Component\Process\Process::setWorkingDirectory(string $cwd) : static
 

Sets the current working directory.

  • return $this
public Symfony\Component\Process\Process::signal(int $signal) : static
 

Sends a POSIX signal to the process.

  • param int $signal A valid POSIX signal (see https://php.net/pcntl.constants)
  • return $this
  • throws \LogicException In case the process is not running
  • throws \RuntimeException In case --enable-sigchild is activated and the process can't be killed
  • throws \RuntimeException In case of failure
public start(?callable $callback = NULL, array $env = [])
public Symfony\Component\Process\Process::stop(float $timeout = 10, ?int $signal = NULL) : ?int
 

Stops the process.

  • param int|float $timeout The timeout in seconds
  • param int|null $signal A POSIX signal to send in case the process has not stop at timeout, default is SIGKILL (9)
  • return int|null The exit-code of the process or null if it's not running
public Symfony\Component\Process\Process::wait(?callable $callback = NULL) : int
 

Waits for the process to terminate.

The callback receives the type of output (out or err) and some bytes
from the output in real-time while writing the standard input to the process.
It allows to have feedback from the independent process during execution.

  • param callable|null $callback A valid PHP callback
  • return int The exitcode of the process
  • throws \ProcessTimedOutException When process timed out
  • throws \ProcessSignaledException When process stopped after receiving signal
  • throws \LogicException When process is not yet started
public Symfony\Component\Process\Process::waitUntil(callable $callback) : bool
 

Waits until the callback returns true.

The callback receives the type of output (out or err) and some bytes
from the output in real-time while writing the standard input to the process.
It allows to have feedback from the independent process during execution.

  • throws \RuntimeException When process timed out
  • throws \LogicException When process is not yet started
  • throws \ProcessTimedOutException In case the timeout was reached
Methods
protected Symfony\Component\Process\Process::buildCallback(?callable $callback = NULL) : Closure
 

Builds up the callback used by wait().

The callbacks adds all occurred output to the specific buffer and calls
the user callback (if present) with the received output.

  • param callable|null $callback The user defined PHP callback
protected Symfony\Component\Process\Process::isSigchildEnabled() : bool
 

Returns whether PHP has been compiled with the '--enable-sigchild' option or not.

protected Symfony\Component\Process\Process::updateStatus(bool $blocking)
 

Updates the status of the process, reads pipes.

  • param bool $blocking Whether to use a blocking read call
Properties
public static Symfony\Component\Process\Process::$exitCodes = ['OK', 'General error', 'Misuse of shell builtins', 126 => 'Invoked command cannot execute', 127 => 'Command not found', 128 => 'Invalid exit argument', 129 => 'Hangup', 130 => 'Interrupt', 131 => 'Quit and dump core', 132 => 'Illegal instruction', 133 => 'Trace/breakpoint trap', 134 => 'Process aborted', 135 => 'Bus error: "access to undefined portion of memory object"', 136 => 'Floating point exception: "erroneous arithmetic operation"', 137 => 'Kill (terminate immediately)', 138 => 'User-defined 1', 139 => 'Segmentation violation', 140 => 'User-defined 2', 141 => 'Write to pipe with no one reading', 142 => 'Signal raised by alarm', 143 => 'Termination (request to terminate)', 145 => 'Child process terminated, stopped (or continued*)', 146 => 'Continue if stopped', 147 => 'Stop executing temporarily', 148 => 'Terminal stop signal', 149 => 'Background process attempting to read from tty ("in")', 150 => 'Background process attempting to write to tty ("out")', 151 => 'Urgent data available on socket', 152 => 'CPU time limit exceeded', 153 => 'File size limit exceeded', 154 => 'Signal raised by timer counting virtual time: "virtual timer expired"', 155 => 'Profiling timer expired', 157 => 'Pollable event', 159 => 'Bad syscall']
 

Exit codes translation table.

User-defined errors must use exit codes in the 64-113 range.

Methods
public static fromShellCommandline(string $command, ?string $cwd = NULL, ?array $env = NULL, ?mixed $input = NULL, ?float $timeout = 60) : static
public static Symfony\Component\Process\Process::isPtySupported() : bool
 

Returns whether PTY is supported on the current operating system.

public static Symfony\Component\Process\Process::isTtySupported() : bool
 

Returns whether TTY is supported on the current operating system.

© 2023 Bruce Wells
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