3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Loader { private static $instances; public static function get_instance($class) { if(!isset(self::$instances[$class])) { self::$instances[$class] = new $class(); } return self::$instances[$class]; } public static function debug() { print_r($instances); } } class One{ public function __toString() { return 'One'; } } class Two{ public function __toString() { return 'Two'; } } class Foo{ public function __toString() { return 'Foo'; } } $foo = Loader::instance('Foo'); $one = Loader::instance('One'); $two = Loader::instance('Two'); Loader::debug()

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
5.4.110.0130.04512.01
5.4.100.0130.04512.01
5.4.90.0150.04412.01
5.4.80.0180.05212.01
5.4.70.0150.04312.00
5.4.60.0140.04412.00
5.4.50.0130.04612.00
5.4.40.0130.04611.99
5.4.30.0180.05111.99
5.4.20.0200.05111.98
5.4.10.0140.04511.99
5.4.00.0160.05311.48
5.3.210.0130.05112.68
5.3.200.0130.04712.68
5.3.190.0160.04312.68
5.3.180.0140.04512.67
5.3.170.0180.04212.67
5.3.160.0150.04612.67
5.3.150.0150.04712.67
5.3.140.0130.04712.66
5.3.130.0170.04312.66
5.3.120.0180.05412.66
5.3.110.0160.04612.66
5.3.100.0130.04712.13
5.3.90.0240.05512.10
5.3.80.0130.04812.08
5.3.70.0160.04612.08
5.3.60.0150.04412.07
5.3.50.0140.04512.02
5.3.40.0200.05912.02
5.3.30.0150.04411.98
5.3.20.0170.06011.76
5.3.10.0120.04211.73
5.3.00.0120.04511.71

preferences:
146.84 ms | 1394 KiB | 7 Q