- var_dump: documentation ( source)
- stream_get_contents: documentation ( source)
- proc_open: documentation ( source)
<?php
$descriptorspec = array(
0 => array("pipe", "r"),
1 => array("pipe", "w"),
2 => array("file", "/tmp/error-output.txt", "a")
);
$cwd = '/tmp';
$env = array('some_option' => 'aeiou');
$process = proc_open('/bin/ls', $descriptorspec, $pipes, $cwd);
var_dump($process);
echo stream_get_contents($pipes[1]);