3v4l.org

run code in 300+ PHP versions simultaneously
<?php $_SESSION_start() <p class="error"><?php echo $_SESSION['error'] ?></p>

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)
7.0.10.0070.07320.12
7.0.00.0030.09320.25
5.6.160.0170.07720.39
5.6.150.0070.06718.19
5.6.140.0030.06718.27
5.6.130.0070.03718.18
5.6.120.0030.05321.11
5.6.110.0030.04021.07
5.6.100.0200.06720.97
5.6.90.0030.08720.98
5.6.80.0030.04020.50
5.5.300.0030.04717.98
5.5.290.0070.08318.09
5.5.280.0200.06720.88
5.5.270.0070.05320.75
5.5.260.0100.06320.86
5.5.250.0070.08320.79
5.5.240.0130.06720.12

preferences:
140.46 ms | 1394 KiB | 7 Q