Check for support of fastcgi_finish_request()

check_fastcgi.php

<?php
$file = __DIR__ . '/text.txt';

if (is_file($file) && is_writable($file)) {
	@unlink($file);
	echo '<small style="color: #ccc;">' . $file . ' was deleted.</small><br>' . PHP_EOL;
}

echo '<p>Calling to <code>fastcgi_finish_request()</code>.</p>' . PHP_EOL;

echo '<p>If success, the file ' . $file . ' will be created.</p>' . PHP_EOL;

if (function_exists('fastcgi_finish_request')) {
	fastcgi_finish_request();
} else {
	echo '<p style="color: red;">This server does not support <code>fastcgi_finish_request()</code> function.</p>' . PHP_EOL;
	echo 'Exit now.<br>' . PHP_EOL;
	exit();
}

echo 'This line will be not echo out.<br>' . PHP_EOL;

file_put_contents($file, date('Y-m-d H:i:s') . PHP_EOL, FILE_APPEND);