3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Test { public function foo() { $start = microtime(true); for ($i=0; $i<1e5; $i++) { $a=get_called_class(); } $end = microtime(true); echo "Took: ", ($end-$start)*1e3, " ms"; $start = microtime(true); for ($i=0; $i<1e5; $i++) { $a=static::class; } $end = microtime(true); echo "Took: ", ($end-$start)*1e3, " ms"; } }

preferences:
34.48 ms | 402 KiB | 5 Q