3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "feedlog_54"; echo preg_match('\feedlog_\', $string);

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)
5.6.80.0170.03320.37
5.5.240.0100.07020.26
5.4.400.0170.07718.79
5.4.390.3470.05718.47
5.4.380.0770.05318.74
5.4.370.0430.07018.78
5.4.360.1430.05018.61
5.4.350.0430.08018.75
5.4.340.1470.05318.47
5.4.320.0330.06318.65
5.4.310.0430.05318.77
5.4.300.0400.05018.74
5.4.290.0300.06018.76
5.4.280.1500.07018.46
5.4.270.0330.06018.46
5.4.260.0430.06718.58
5.4.250.0470.04718.57
5.4.240.1930.06718.49
5.4.230.0400.05718.54
5.4.220.0700.06018.77
5.4.210.0470.05718.74
5.4.200.0370.06716.68
5.4.190.0230.05018.57
5.4.180.1200.06018.67
5.4.170.0200.07018.72
5.4.160.0170.06018.76
5.4.150.0670.04018.72
5.4.140.1970.06716.17
5.4.130.0500.05716.44
5.4.120.0270.07016.44
5.4.110.0400.04316.41
5.4.100.1300.05316.27
5.4.90.0500.06016.27
5.4.80.0500.05716.44
5.4.70.0400.06316.17
5.4.60.0500.05716.18
5.4.50.0500.04316.16
5.4.40.0370.05316.26
5.4.30.0430.06716.27
5.4.20.0430.07016.13
5.4.10.0300.05316.40
5.4.00.0370.05015.73
5.3.290.0330.06314.56
5.3.280.0300.05714.64
5.3.270.0330.05314.59
5.3.260.1330.05314.55
5.3.250.0530.05314.57
5.3.240.1200.05014.60
5.3.230.0470.05014.67
5.3.220.1500.06714.65
5.3.210.0230.06714.54
5.3.200.1570.06714.56
5.3.190.0300.06014.52
5.3.180.0800.05314.54
5.3.170.0670.05314.64
5.3.160.0300.05014.66
5.3.150.0370.05014.53
5.3.140.0330.05714.56
5.3.130.0370.04714.48
5.3.120.0170.05714.45
5.3.110.0400.05314.51
5.3.100.0400.05014.02
5.3.90.1170.05014.07
5.3.80.0170.06313.91
5.3.70.0300.06014.11
5.3.60.0330.05014.04
5.3.50.0600.06013.91
5.3.40.1100.05714.04
5.3.30.0400.04313.82
5.3.20.0230.06313.60
5.3.10.1370.05013.73
5.3.00.0300.05313.61
5.2.170.0430.04711.30
5.2.160.0200.04311.09
5.2.150.0200.04711.11
5.2.140.0230.04311.17
5.2.130.1000.04711.05
5.2.120.1230.04311.05
5.2.110.0330.05311.13
5.2.100.0300.05311.08
5.2.90.0170.03711.15
5.2.80.0230.04311.10
5.2.70.0200.04311.25
5.2.60.0200.04311.04
5.2.50.0230.04311.05
5.2.40.0270.04711.06
5.2.30.0170.05711.12
5.2.20.0100.04710.92
5.2.10.0200.03710.84
5.2.00.0100.04310.76
5.1.60.0170.03310.06
5.1.50.1670.05010.05
5.1.40.3130.0409.98
5.1.30.2070.05010.31
5.1.20.0330.04710.35
5.1.10.0300.03010.12
5.1.00.0330.03710.14
5.0.50.0130.0278.56
5.0.40.0200.0278.42
5.0.30.0230.0438.36
5.0.20.0130.0278.32
5.0.10.0100.0308.35
5.0.00.0170.0408.19
4.4.90.0130.0335.90
4.4.80.0100.0305.96
4.4.70.0130.0235.86
4.4.60.0170.0175.82
4.4.50.0070.0235.89
4.4.40.0000.0405.93
4.4.30.0070.0235.87
4.4.20.0130.0176.00
4.4.10.0100.0275.96
4.4.00.0100.0305.94
4.3.110.0170.0205.83
4.3.100.0430.0205.80
4.3.90.0030.0275.81
4.3.80.0030.0435.79
4.3.70.0300.0275.80
4.3.60.0130.0205.79
4.3.50.0070.0235.90
4.3.40.0100.0375.82
4.3.30.0030.0304.58
4.3.20.0030.0304.56
4.3.10.0170.0234.48
4.3.00.0070.0176.46

preferences:
143.86 ms | 1394 KiB | 7 Q