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)
7.0.10.0070.04320.34
7.0.00.0070.07320.09
5.6.160.0070.04720.71
5.6.150.0170.05718.18
5.6.140.0070.04718.17
5.6.130.0070.03718.14
5.6.120.0100.07720.99
5.6.110.0030.04321.08
5.6.100.0070.06721.16
5.6.90.0070.09020.96
5.6.80.0100.03320.37
5.5.300.0030.04017.99
5.5.290.0070.04718.05
5.5.280.0030.04320.77
5.5.270.0030.08720.79
5.5.260.0130.07720.79
5.5.250.0030.05720.70
5.5.240.0100.07720.26

preferences:
138.48 ms | 1398 KiB | 7 Q