php_opcache.php

<?php

$output = array(
	'mem_used' => 0,
	'mem_free' => 0,
	'mem_wasted' => 0,
	'hitrate' => 0,
	'hits' => 0,
	'misses' => 0,
	'used_keys' => 0,
	'free_keys' => 0,
);

if (function_exists('opcache_get_status')) {
	$data = opcache_get_status(false);
	$output = array(
		'mem_used' => $data['memory_usage']['used_memory'],
		'mem_free' => $data['memory_usage']['free_memory'],
		'mem_wasted' => $data['memory_usage']['wasted_memory'],
		'hitrate' => round($data['opcache_statistics']['opcache_hit_rate'], 2),
		'hits' => $data['opcache_statistics']['hits'],
		'misses' => $data['opcache_statistics']['misses'],
		'used_keys' => $data['opcache_statistics']['num_cached_keys'],
		'free_keys' => $data['opcache_statistics']['max_cached_keys'] - $data['opcache_statistics']['num_cached_keys'],
	);
}

$filters = array(
	'memory'=>array('mem_used'=>true, 'mem_free'=>true, 'mem_wasted'=>true),
	'hitrate'=>array('hitrate'=>true),
	'hits'=>array('hits'=>true),
	'misses'=>array('misses'=>true),
	'keys'=>array('used_keys'=>true, 'free_keys'=>true),
);

if (isset($_GET['req']) && isset($filters[$_GET['req']]))
	$output = array_intersect_key($output, $filters[$_GET['req']]);

header('Content-Type: text/plain');
foreach ($output as $key => $value) {
	echo $key.'.value '.$value, "\n";
}