3v4l.org

run code in 300+ PHP versions simultaneously
<?php $utc = new \DateTime('2018-01-01 00:00:00', new DateTimezone('UTC')); $local = new \DateTime('2018-01-01 00:00:00', new DateTimezone('Europe/Paris')); echo 'UTC: ' . $utc->getTimestamp() . "\n"; echo 'PARIS: ' . $local->getTimestamp() . "\n"; echo $localBack = new \DateTime('@' . $local->getTimestamp()); $localBack->setTimezone(new DateTimezone('Europe/Paris'))) echo $localBack->format('Y-m-d H:i.s');

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)
7.2.40.0390.01317.98
7.2.30.0390.01417.57
7.2.20.0270.01117.86
7.2.10.0420.01117.29
7.2.00.0330.00917.65
7.1.160.0340.01716.60
7.1.150.0500.00916.82
7.1.140.0270.01016.45
7.1.130.0330.00916.23
7.1.120.0370.01516.66
7.1.110.0260.01115.77
7.1.100.0250.01215.80
7.1.90.0340.01015.85
7.1.80.0390.01216.00
7.1.70.0250.00715.01
7.1.60.0460.00933.02
7.1.50.0380.01732.79
7.1.40.0410.01732.48
7.1.30.0440.01032.54
7.1.20.0430.01432.52
7.1.10.1920.01014.55
7.1.00.0310.01214.74

preferences:
140.93 ms | 1394 KiB | 7 Q