3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php // sys_get_temp_dir is only available since PHP 5.2.1 // http://php.net/manual/en/function.sys-get-temp-dir.php#94119 if ( !function_exists('sys_get_temp_dir')) { if ($temp = getenv('TMP') ) { if ((!empty($temp)) && (file_exists($temp))) { return realpath($temp); } } if ($temp = getenv('TEMP') ) { if ((!empty($temp)) && (file_exists($temp))) { return realpath($temp); } } if ($temp = getenv('TMPDIR') ) { if ((!empty($temp)) && (file_exists($temp))) { return realpath($temp); } } // trick for creating a file in system's temporary dir // without knowing the path of the system's temporary dir $temp = tempnam(__FILE__, ''); if (file_exists($temp)) { unlink($temp); return realpath(dirname($temp)); } return null; } // use ordinary built-in PHP function // There should be no problem with the 5.2.4 Suhosin realpath() bug, because this line should only // be called if we're running 5.2.1 or earlier return realpath(sys_get_temp_dir());
Output for 4.3.0 - 7.1.0