3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match('/(.\K)/', 'abcd', $m), $m);

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)
8.3.60.0140.00718.68
8.3.50.0100.00721.20
8.3.40.0110.00318.93
8.3.30.0110.00418.79
8.3.20.0040.00418.73
8.3.10.0050.00319.09
8.3.00.0000.00823.61
8.2.180.0070.00716.50
8.2.170.0190.00322.96
8.2.160.0030.01022.14
8.2.150.0060.00924.18
8.2.140.0040.00424.66
8.2.130.0000.00926.16
8.2.120.0000.00721.07
8.2.110.0040.00420.39
8.2.100.0030.00717.84
8.2.90.0000.00719.09
8.2.80.0060.00317.97
8.2.70.0060.00317.75
8.2.60.0030.00517.68
8.2.50.0030.00518.07
8.2.40.0080.00018.03
8.2.30.0040.00421.17
8.2.20.0000.00817.77
8.2.10.0000.00717.58
8.2.00.0050.00317.70
8.1.280.0110.00425.92
8.1.270.0040.00423.99
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00022.30
8.1.230.0080.00320.78
8.1.220.0060.00318.77
8.1.210.0030.00518.77
8.1.200.0060.00317.25
8.1.190.0090.00017.40
8.1.180.0040.00418.10
8.1.170.0000.00918.79
8.1.160.0040.00418.88
8.1.150.0000.00718.56
8.1.140.0040.00417.45
8.1.130.0030.00317.69
8.1.120.0040.00417.50
8.1.110.0040.00417.47
8.1.100.0050.00217.38
8.1.90.0000.00717.45
8.1.80.0040.00417.38
8.1.70.0000.00817.47
8.1.60.0040.00417.54
8.1.50.0040.00417.44
8.1.40.0000.00817.44
8.1.30.0030.00517.64
8.1.20.0000.00817.57
8.1.10.0040.00417.61
8.1.00.0050.00317.57
8.0.300.0000.00719.86
8.0.290.0040.00417.05
8.0.280.0030.00318.35
8.0.270.0080.00017.14
8.0.260.0000.00816.75
8.0.250.0050.00316.95
8.0.240.0000.00816.98
8.0.230.0040.00416.95
8.0.220.0030.00316.83
8.0.210.0040.00416.91
8.0.200.0060.00017.00
8.0.190.0000.00716.87
8.0.180.0070.00016.76
8.0.170.0060.00316.93
8.0.160.0030.00316.81
8.0.150.0040.00416.92
8.0.140.0070.00016.80
8.0.130.0030.00313.29
8.0.120.0030.00516.88
8.0.110.0040.00416.95
8.0.100.0040.00416.73
8.0.90.0050.00316.90
8.0.80.0030.01216.93
8.0.70.0000.00716.93
8.0.60.0040.00417.02
8.0.50.0000.00816.84
8.0.30.0110.00916.92
8.0.20.0060.01117.40
8.0.10.0000.00716.89
8.0.00.0100.01016.84
7.4.330.0000.00514.86
7.4.320.0000.00716.51
7.4.300.0060.00016.54
7.4.290.0000.00816.67
7.4.280.0050.00316.50
7.4.270.0030.00316.71
7.4.260.0000.00613.37
7.4.250.0000.00716.46
7.4.240.0000.00716.59
7.4.230.0000.00716.43
7.4.220.0090.00616.47
7.4.210.0090.00616.66
7.4.200.0000.00716.61
7.4.190.0000.00716.39
7.4.160.0100.00616.38
7.4.150.0030.01617.40
7.4.140.0070.01417.86
7.4.130.0070.01016.58
7.4.120.0100.00716.50
7.4.110.0120.00616.70
7.4.100.0100.01016.54
7.4.90.0100.01016.46
7.4.80.0090.01219.39
7.4.70.0090.01216.36
7.4.60.0130.01016.48
7.4.50.0030.00616.30
7.4.40.0000.01522.77
7.4.30.0050.01416.55
7.4.00.0100.00314.89
7.3.330.0050.00013.07
7.3.320.0020.00213.12
7.3.310.0070.00016.21
7.3.300.0030.00316.15
7.3.290.0120.00616.26
7.3.280.0110.00916.29
7.3.270.0140.00317.40
7.3.260.0120.00918.24
7.3.250.0080.00916.34
7.3.240.0130.00316.44
7.3.230.0130.00316.39
7.3.210.0040.01216.48
7.3.200.0070.01019.39
7.3.190.0060.01016.39
7.3.180.0060.01216.59
7.3.170.0100.00616.29
7.3.160.0130.00316.31
7.3.120.0030.01414.79
7.2.330.0110.01116.45
7.2.320.0070.01116.59
7.2.310.0030.01516.48
7.2.300.0070.01016.47
7.2.290.0030.01316.43
7.2.00.0000.01519.43
7.1.100.0060.00618.18
7.1.70.0060.00316.94
7.1.60.0070.00317.18
7.1.50.0030.01016.95
7.1.40.0040.00816.88
7.1.30.0110.00316.89
7.1.20.0070.00716.97
7.1.10.0040.00416.71
7.1.00.0040.00716.66
7.0.200.0040.00416.71
7.0.190.0060.00316.48
7.0.180.0030.00516.40
7.0.170.0070.00716.25
7.0.160.0000.00816.53
7.0.150.0080.00016.30
7.0.140.0000.00816.32
7.0.130.0050.00316.73
7.0.120.0040.01116.63
7.0.110.0000.00816.69
7.0.100.0030.00616.38
7.0.90.0000.00816.41
7.0.80.0000.00916.59
7.0.70.0080.00016.52
7.0.60.0130.01016.43
7.0.50.0000.01016.52
7.0.40.0030.00715.52
7.0.30.0050.00315.52
7.0.20.0000.00815.52
7.0.10.0040.00415.52
7.0.00.0060.00315.52
5.6.300.0130.04520.91
5.6.290.0000.04520.68
5.6.280.0100.08120.99
5.6.270.0260.03921.02
5.6.260.0130.04220.74
5.6.250.0070.03920.71
5.6.240.0030.04620.83
5.6.230.0030.05720.88
5.6.220.0030.04120.98
5.6.210.0000.04520.86
5.6.200.0100.03520.95
5.6.190.0060.04820.98
5.6.180.0070.04020.90
5.6.170.0000.04520.84
5.6.160.0030.04720.81
5.6.150.0000.04420.72
5.6.140.0060.03820.72
5.6.130.0030.04120.94
5.6.120.0030.04320.71
5.6.110.0030.04520.68
5.6.100.0130.04820.98
5.6.90.0100.07820.98
5.6.80.0100.03220.11
5.6.70.0470.02720.33
5.6.60.0000.05320.34
5.6.50.0000.04320.20
5.6.40.0030.03820.29
5.6.30.0030.03920.38
5.6.20.0030.04220.21
5.6.10.0100.04620.34
5.6.00.0030.04020.16
5.5.380.0000.06017.45
5.5.370.0060.04217.38
5.5.360.0030.04017.34
5.5.350.0070.03717.41
5.5.340.0220.03817.98
5.5.330.0070.03717.92
5.5.320.0060.03917.88
5.5.310.0030.04217.76
5.5.300.0000.04517.89
5.5.290.0030.04618.02
5.5.280.0070.03917.92
5.5.270.0060.03717.90
5.5.260.0060.04417.94
5.5.250.0030.05017.76
5.5.240.0000.05717.25
5.5.230.0000.04517.32
5.5.220.0090.03317.30
5.5.210.0000.04517.45
5.5.200.0040.04117.38
5.5.190.0120.03717.32
5.5.180.0190.03217.38
5.5.160.0030.03817.19
5.5.150.0000.04417.38
5.5.140.0030.03817.29
5.5.130.0030.03917.09
5.5.120.0070.03817.32
5.5.110.0060.03717.30
5.5.100.0000.04117.27
5.5.90.0030.04117.28
5.5.80.0030.04317.27
5.5.70.0090.03617.23
5.5.60.0090.03617.19
5.5.50.0030.04517.17
5.5.40.0070.03917.07
5.5.30.0130.04317.07
5.5.20.0030.04617.23
5.5.10.0000.04417.22
5.5.00.0000.04816.97
5.4.450.0040.04419.32
5.4.440.0030.04019.32
5.4.430.0030.04219.30
5.4.420.0030.03919.05
5.4.410.0070.03719.27
5.4.400.0270.02718.95
5.4.390.0030.04119.04
5.4.380.0130.03218.79
5.4.370.0100.03218.98
5.4.360.0220.05018.91
5.4.350.0200.04418.98
5.4.340.0060.03918.98
5.4.320.0000.04719.14
5.4.310.0030.03918.91
5.4.300.0070.03718.91
5.4.290.0030.04219.01
5.4.280.0030.05919.09
5.4.270.0060.03519.06
5.4.260.0030.03918.91
5.4.250.0040.03919.16
5.4.240.0040.04019.06
5.4.230.0060.03518.82
5.4.220.0100.04119.09
5.4.210.0070.04319.16
5.4.200.0000.04619.13
5.4.190.0120.03019.13
5.4.180.0000.04318.87
5.4.170.0090.03518.97
5.4.160.0070.03618.98
5.4.150.0000.04319.14
5.4.140.0090.03416.55
5.4.130.0060.03516.63
5.4.120.0070.03016.64
5.4.110.0060.03616.63
5.4.100.0000.04216.69
5.4.90.0000.04316.50
5.4.80.0060.03116.64
5.4.70.0120.02816.58
5.4.60.0000.04116.34
5.4.50.0000.03916.30
5.4.40.0030.03516.71
5.4.30.0000.04916.58
5.4.20.0030.03716.32
5.4.10.0030.03516.54
5.4.00.0060.03416.14
5.3.290.0060.03915.52
5.3.280.0030.03815.52
5.3.270.0100.04615.52
5.3.260.0030.03815.52
5.3.250.0060.03215.52
5.3.240.0030.04315.52
5.3.230.0030.03515.52
5.3.220.0060.03815.52
5.3.210.0030.03815.52
5.3.200.0000.03915.52
5.3.190.0130.02915.52
5.3.180.0000.04115.52
5.3.170.0030.04115.52
5.3.160.0030.03815.52
5.3.150.0000.03915.52
5.3.140.0000.04115.52
5.3.130.0030.03815.52
5.3.120.0000.04215.52
5.3.110.0040.03915.52
5.3.100.0000.03815.52
5.3.90.0000.04115.52
5.3.80.0070.03515.52
5.3.70.0030.03615.52
5.3.60.0070.03515.52
5.3.50.0030.03615.52
5.3.40.0060.03215.52
5.3.30.0070.03315.52
5.3.20.0030.03515.52
5.3.10.0060.04315.52
5.3.00.0030.03315.52

preferences:
38.88 ms | 401 KiB | 5 Q