shell_exec
shell_exec
(PHP 4, PHP 5, PHP 7)
shell_exec — Execute command via shell and return the complete output as a string
Parameters
-
cmd
-
The command that will be executed.
Return Values
The output from the executed command or NULL
if an error occurred or the command produces no output.
Note:
This function can return
NULL
both when an error occurs or the program produces no output. It is not possible to detect execution failures using this function. exec() should be used when access to the program exit code is required.
Examples
Example #1 A shell_exec() example
<?php $output = shell_exec('ls -lart'); echo "<pre>$output</pre>"; ?>
Notes
Note:
This function is disabled when PHP is running in safe mode.
See Also
- exec() - Execute an external program
- escapeshellcmd() - Escape shell metacharacters
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.shell-exec.php