3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'dfpepito'; $allowed = array(".", "-", "_"); var_dump(preg_match('/^[-._]|[-._]$/i', $str));

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)
8.3.60.0100.00718.40
8.3.50.0080.01216.48
8.3.40.0120.00618.96
8.3.30.0140.00318.85
8.3.20.0090.00021.90
8.3.10.0030.00523.52
8.3.00.0080.00019.44
8.2.180.0120.00918.43
8.2.170.0070.00722.96
8.2.160.0060.00821.01
8.2.150.0060.00325.66
8.2.140.0070.00024.66
8.2.130.0040.00420.41
8.2.120.0050.00226.35
8.2.110.0030.00621.12
8.2.100.0000.01117.84
8.2.90.0060.00319.05
8.2.80.0030.00517.97
8.2.70.0040.00417.75
8.2.60.0040.00417.91
8.2.50.0000.00818.10
8.2.40.0020.00520.56
8.2.30.0000.00719.12
8.2.20.0040.00417.89
8.2.10.0000.00718.06
8.2.00.0030.00517.91
8.1.280.0060.00925.92
8.1.270.0020.00523.97
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0060.00321.37
8.1.230.0060.00619.04
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0030.00717.36
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0000.00818.62
8.1.160.0030.00518.72
8.1.150.0040.00419.97
8.1.140.0040.00419.53
8.1.130.0030.00318.89
8.1.120.0000.00717.46
8.1.110.0000.00917.57
8.1.100.0040.00417.44
8.1.90.0030.00517.46
8.1.80.0030.00317.41
8.1.70.0000.00717.46
8.1.60.0000.00717.56
8.1.50.0060.00317.55
8.1.40.0000.00817.55
8.1.30.0050.00217.75
8.1.20.0040.00417.73
8.1.10.0040.00417.57
8.1.00.0030.00617.50
8.0.300.0040.00419.98
8.0.290.0040.00416.75
8.0.280.0000.00718.39
8.0.270.0000.00717.16
8.0.260.0030.00316.85
8.0.250.0070.00016.96
8.0.240.0000.00716.88
8.0.230.0040.00417.09
8.0.220.0000.00717.02
8.0.210.0070.00016.98
8.0.200.0000.00716.91
8.0.190.0030.00616.96
8.0.180.0000.00716.88
8.0.170.0070.00017.02
8.0.160.0050.00216.95
8.0.150.0070.00016.93
8.0.140.0030.00617.01
8.0.130.0000.00513.38
8.0.120.0000.00916.92
8.0.110.0040.00416.96
8.0.100.0000.00816.83
8.0.90.0070.00016.89
8.0.80.0040.01816.95
8.0.70.0000.00716.95
8.0.60.0070.00016.92
8.0.50.0000.00816.94
8.0.30.0100.00817.00
8.0.20.0110.00717.40
8.0.10.0000.00716.94
8.0.00.0110.00716.68
7.4.330.0000.00515.55
7.4.320.0000.00716.75
7.4.300.0000.00716.67
7.4.290.0030.00716.73
7.4.280.0050.00216.72
7.4.270.0000.00716.73
7.4.260.0050.00013.43
7.4.250.0040.00416.52
7.4.240.0050.00216.66
7.4.230.0000.00716.48
7.4.220.0090.00916.85
7.4.210.0110.00616.77
7.4.200.0080.00016.55
7.4.160.0080.00816.53
7.4.150.0140.00517.40
7.4.140.0080.01017.86
7.4.130.0130.01016.81
7.4.120.0050.01316.64
7.4.110.0140.00716.53
7.4.100.0120.01216.41
7.4.90.0130.00316.48
7.4.80.0100.01319.39
7.4.70.0060.00916.47
7.4.60.0060.01016.56
7.4.50.0090.00316.64
7.4.40.0090.00616.59
7.4.30.0080.00816.61
7.4.00.0100.00614.84
7.3.330.0000.00613.13
7.3.320.0060.00013.11
7.3.310.0070.00016.28
7.3.300.0000.00616.32
7.3.290.0110.00316.28
7.3.280.0050.01016.26
7.3.270.0060.01017.40
7.3.260.0100.00616.43
7.3.250.0100.01316.53
7.3.240.0080.00816.31
7.3.230.0100.00716.29
7.3.210.0140.00316.47
7.3.200.0070.01016.44
7.3.190.0080.00816.38
7.3.180.0100.00716.32
7.3.170.0070.01016.50
7.3.160.0140.00416.65
7.3.120.0060.00914.75
7.3.110.0100.00314.89
7.3.100.0110.00314.75
7.3.90.0040.01114.47
7.3.80.0000.01115.01
7.3.70.0000.01714.90
7.3.60.0070.00314.89
7.3.50.0100.00714.70
7.3.40.0030.00914.82
7.3.30.0000.01514.77
7.3.20.0090.00616.71
7.3.10.0110.00416.91
7.3.00.0000.01516.77
7.2.330.0090.00916.59
7.2.320.0130.02016.62
7.2.310.0060.01316.55
7.2.300.0000.01616.78
7.2.290.0050.01316.57
7.2.240.0060.01114.90
7.2.230.0120.00315.13
7.2.220.0060.00614.77
7.2.210.0060.01215.21
7.2.200.0060.00915.15
7.2.190.0070.01014.91
7.2.180.0070.01015.13
7.2.170.0060.01015.06
7.2.160.0040.01515.06
7.2.150.0030.01317.11
7.2.140.0060.00616.64
7.2.130.0060.01016.85
7.2.120.0060.00916.78
7.2.110.0120.00016.91
7.2.100.0040.01116.78
7.2.90.0080.00616.75
7.2.80.0000.01116.81
7.2.70.0030.01216.63
7.2.60.0110.00516.93
7.2.50.0070.01216.73
7.2.40.0100.00716.64
7.2.30.0080.00816.94
7.2.20.0000.01517.07
7.2.10.0100.00616.99
7.2.00.0060.00916.81
7.1.330.0070.00715.90
7.1.320.0070.00715.71
7.1.310.0030.01215.58
7.1.300.0080.00516.01
7.1.290.0110.00315.71
7.1.280.0040.01215.77
7.1.270.0030.01015.94
7.1.260.0070.01015.84
7.1.250.0000.01315.86
7.1.200.0000.00915.89
7.1.70.0000.00817.28
7.1.60.0030.00717.06
7.1.50.0070.00317.08
7.1.40.0040.00816.89
7.1.30.0030.01016.84
7.1.20.0000.01117.17
7.1.10.0040.00716.71
7.1.00.0040.00717.02
7.0.200.0000.00716.50
7.0.190.0090.00016.74
7.0.180.0000.00816.44
7.0.170.0000.00916.44
7.0.160.0030.00716.48
7.0.150.0040.00416.44
7.0.140.0030.01016.66
7.0.130.0030.00616.75
7.0.120.0040.00416.73
7.0.110.0000.00716.54
7.0.100.0000.00716.74
7.0.90.0030.00616.52
7.0.80.0170.00016.44
7.0.70.0090.00416.62
7.0.60.0030.00616.44
7.0.50.0000.00916.44
7.0.40.0030.00816.44
7.0.30.0000.00816.44
7.0.20.0000.01016.44
7.0.10.0040.00716.44
7.0.00.0070.00716.44

preferences:
60.76 ms | 400 KiB | 5 Q