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# shell_exec

(PHP 4, PHP 5)

shell_exec -- Execute command via shell and return the complete output as a string

## Description

string shell_exec ( string cmd )

This function is identical to the backtick operator.

## Parameters

cmd

  The command that will be executed.

## Return Values

The output from the executed command.

## Examples

Example 1. A shell_exec() example

`<?php $output = shell_exec('ls -lart'); echo "<pre>$output</pre>"; ?>`

## Notes

> Note: This function is disabled in safe mode.

## See Also

exec()
escapeshellcmd()

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