proc_open example

proc.php

<?php

$cmd = "C:\\Program Files (x86)\\Java\\jre6\\bin\\java.exe";
$parts = array(
	'-jar' => 'G:\\test\\yuic\\build\\yuicompressor-2.4.6.jar',
	'--type' => 'css',
	'--charset' => 'UTF-8',
	'H:\\projects\\assetic\\assetic\\tests\\Assetic\\Test\\Filter\\fixtures\\cssmin\\fonts.css -o g:\\temp\\test.css',
	'-o' => 'g:\\temp\\test.css',
);

$args = '';
foreach ($parts as $k => $part) {
	if (is_string($k)) {
		$args .= ' ' . escapeshellarg($k) . ' ' . escapeshellarg($part);
	} else {
		$args .= ' ' . escapeshellarg($part);
	}
}

$process_cmd = '"' . $cmd . '"' . ' ' . $args;

$env = NULL;
$options = array('bypass_shell' => true);
$cwd = NULL;
$descriptorspec = array(
   0 => array("pipe", "r"),  // stdin is a pipe that the child will read from
   1 => array("pipe", "w"),  // stdout is a pipe that the child will write to
   2 => array("pipe", "w")  // stderr is a file to write to
);

$process = proc_open($process_cmd, $descriptorspec, $pipes, $cwd, $env, $options);

if (is_resource($process)) {
	echo stream_get_contents($pipes[1]);
	fclose($pipes[1]);

	// It is important that you close any pipes before calling
	// proc_close in order to avoid a deadlock
	$return_value = proc_close($process);

	echo "command returned $return_value\n";
}