3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern = "/^[a-zA-Z0-9._-]+@[a-zA-Z0-9-]+\.[a-zA-Z.]{2,5}$/"; $pattern = "/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/"; $replacement = "**************"; echo preg_replace($pattern, $replacement, "I want to replace this.is@an.email.com with stars"); echo "\n" echo preg_replace("/a/", "A", "I want to capitalise all A'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)
5.4.320.0430.02319.14
5.4.310.0270.03719.21
5.4.300.0330.04019.08
5.4.290.0300.03719.05
5.4.280.0270.04018.96
5.4.270.0270.03718.86
5.4.260.0170.03719.25
5.4.250.0230.04018.93
5.4.240.0330.03019.13
5.4.230.0370.04319.20
5.4.220.0270.06318.96
5.4.210.0400.04019.20
5.4.200.0300.07318.96
5.4.190.0470.04719.04
5.4.180.0370.07019.06
5.4.170.0300.06019.17
5.4.160.0370.04719.19
5.4.150.0400.06718.94
5.4.140.0200.03316.32
5.4.130.0130.04016.48
5.4.120.0200.03316.48
5.4.110.0300.03316.52
5.4.100.0300.05016.35
5.4.90.0330.03716.53
5.4.80.0330.03016.44
5.4.70.0400.06316.43
5.4.60.0400.06316.42
5.4.50.0270.04316.54
5.4.40.0370.04016.41
5.4.30.0270.03716.52
5.4.20.0400.05016.52
5.4.10.0400.05016.15
5.4.00.0270.03715.77
5.3.290.0370.05014.63
5.3.280.0270.04714.45
5.3.270.0400.04714.58
5.3.260.0300.04014.54
5.3.250.0130.05314.44
5.3.240.0270.07014.49
5.3.230.0200.03714.46
5.3.220.0200.04014.55
5.3.210.0400.06314.60
5.3.200.0370.05714.55
5.3.190.0430.05014.50
5.3.180.0430.06714.59
5.3.170.0370.05014.53
5.3.160.0430.04714.41
5.3.150.0400.05714.61
5.3.140.0330.04314.41
5.3.130.0430.05714.39
5.3.120.0300.05014.61
5.3.110.0430.06314.64
5.3.100.0500.03013.98
5.3.90.0330.05013.86
5.3.80.0400.06314.00
5.3.70.0230.04013.87
5.3.60.0430.06013.86
5.3.50.0330.05013.89
5.3.40.0330.04014.04
5.3.30.0330.03713.79
5.3.20.0330.04713.71
5.3.10.0270.04713.70
5.3.00.0270.03713.48
5.2.170.0330.03011.00
5.2.160.0270.04711.15
5.2.150.0300.05710.98
5.2.140.0270.04010.98
5.2.130.0300.05710.96
5.2.120.0270.03010.95
5.2.110.0270.03711.00
5.2.100.0270.03711.12
5.2.90.0270.03710.94
5.2.80.0300.05311.11
5.2.70.0330.05010.98
5.2.60.0300.03311.10
5.2.50.0400.04011.03
5.2.40.0200.05711.04
5.2.30.0300.04710.83
5.2.20.0330.03010.91
5.2.10.0300.05710.84
5.2.00.0230.05710.88
5.1.60.0170.02010.82
5.1.50.0200.02010.82
5.1.40.0270.03010.82
5.1.30.0200.04010.82
5.1.20.0170.03310.82
5.1.10.0230.03710.82
5.1.00.0200.03010.82
5.0.50.0170.03310.82
5.0.40.0170.04310.82
5.0.30.0170.03710.82
5.0.20.0100.03310.82
5.0.10.0170.01710.82
5.0.00.0100.04310.82
4.4.90.0170.02310.82
4.4.80.0170.02710.82
4.4.70.0170.01710.82
4.4.60.0130.03710.82
4.4.50.0130.03010.82
4.4.40.0070.03310.82
4.4.30.0100.02710.82
4.4.20.0130.02010.82
4.4.10.0200.02710.82
4.4.00.0170.04710.82
4.3.110.0130.03710.82
4.3.100.0170.03310.82
4.3.90.0130.01710.82
4.3.80.0200.04310.82
4.3.70.0100.02710.82
4.3.60.0070.02010.82
4.3.50.0070.02010.82
4.3.40.0070.03710.82
4.3.30.0070.01710.82
4.3.20.0030.04010.82
4.3.10.0070.01310.82
4.3.00.0030.03710.82

preferences:
138.89 ms | 1386 KiB | 7 Q