3v4l.org

run code in 300+ PHP versions simultaneously
<?php $index = "a[12]"; $count = preg_match_all('/(?:^[^\[]+)|\[[^]]*\]/', $index, $matches); print_r($matches);

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)
8.3.60.0060.01018.43
8.3.50.0070.00719.77
8.3.40.0070.00718.84
8.3.30.0070.00718.70
8.3.20.0080.00620.33
8.3.10.0070.00023.57
8.3.00.0040.00419.21
8.2.180.0110.00716.50
8.2.170.0140.00722.96
8.2.160.0070.00719.04
8.2.150.0080.00024.18
8.2.140.0070.00024.66
8.2.130.0040.00420.40
8.2.120.0040.00426.35
8.2.110.0060.00322.18
8.2.100.0040.00719.25
8.2.90.0040.00419.16
8.2.80.0040.00417.97
8.2.70.0000.00817.63
8.2.60.0080.00017.80
8.2.50.0040.00418.07
8.2.40.0000.00918.22
8.2.30.0060.00318.02
8.2.20.0030.00617.76
8.2.10.0040.00418.06
8.2.00.0040.00417.98
8.1.280.0150.00025.92
8.1.270.0040.00424.02
8.1.260.0040.00428.09
8.1.250.0040.00428.09
8.1.240.0100.01020.88
8.1.230.0000.01017.64
8.1.220.0050.00317.79
8.1.210.0000.00818.77
8.1.200.0060.00317.48
8.1.190.0030.00617.22
8.1.180.0040.00418.10
8.1.170.0000.01118.67
8.1.160.0000.00818.72
8.1.150.0000.00718.89
8.1.140.0070.00019.53
8.1.130.0030.00317.66
8.1.120.0040.00417.48
8.1.110.0040.00517.55
8.1.100.0050.00317.55
8.1.90.0040.00417.49
8.1.80.0040.00417.43
8.1.70.0030.00317.44
8.1.60.0030.00617.65
8.1.50.0030.00617.46
8.1.40.0040.00417.57
8.1.30.0040.00417.70
8.1.20.0050.00317.70
8.1.10.0040.00417.70
8.1.00.0070.00017.59
8.0.300.0050.00518.77
8.0.290.0000.00816.75
8.0.280.0040.00418.31
8.0.270.0000.00717.14
8.0.260.0070.00017.16
8.0.250.0070.00016.92
8.0.240.0000.00717.05
8.0.230.0040.00416.99
8.0.220.0030.00316.98
8.0.210.0080.00016.98
8.0.200.0070.00016.96
8.0.190.0040.00417.07
8.0.180.0000.00716.97
8.0.170.0000.00816.95
8.0.160.0030.00316.93
8.0.150.0030.00516.82
8.0.140.0060.00316.99
8.0.130.0060.00013.42
8.0.120.0040.00416.96
8.0.110.0050.00317.05
8.0.100.0000.00817.00
8.0.90.0050.00316.91
8.0.80.0060.00916.96
8.0.70.0050.00316.79
8.0.60.0040.00417.04
8.0.50.0000.00716.91
8.0.30.0090.00917.21
8.0.20.0130.00817.40
8.0.10.0020.00516.88
8.0.00.0070.01016.98
7.4.330.0050.00015.08
7.4.320.0030.00316.50
7.4.300.0030.00316.64
7.4.290.0000.01016.57
7.4.280.0070.00016.70
7.4.270.0040.00416.65
7.4.260.0000.00716.74
7.4.250.0030.00316.72
7.4.240.0040.00416.64
7.4.230.0000.00716.83
7.4.220.0160.01216.83
7.4.210.0120.00516.66
7.4.200.0000.00816.39
7.4.160.0030.01216.79
7.4.150.0110.00917.40
7.4.140.0140.00717.86
7.4.130.0080.01016.65
7.4.120.0090.00816.63
7.4.110.0030.01416.75
7.4.100.0080.00816.46
7.4.90.0160.00316.40
7.4.80.0110.01119.39
7.4.70.0090.00916.64
7.4.60.0130.00316.67
7.4.50.0060.00916.56
7.4.40.0060.01616.63
7.4.30.0000.01616.44
7.4.00.0030.01315.21
7.3.330.0050.00013.07
7.3.320.0030.00313.13
7.3.310.0070.00016.14
7.3.300.0000.00716.25
7.3.290.0040.00416.27
7.3.280.0090.00716.31
7.3.270.0260.00017.40
7.3.260.0100.00816.40
7.3.250.0130.00516.38
7.3.240.0150.00316.46
7.3.230.0090.01316.39
7.3.210.0100.00716.20
7.3.200.0140.00716.20
7.3.190.0060.00916.39
7.3.180.0060.01216.54
7.3.170.0130.00716.35
7.3.160.0030.01316.36
7.2.330.0130.00616.65
7.2.320.0070.01016.74
7.2.310.0120.00616.80
7.2.300.0070.01116.64
7.2.290.0030.01316.73
7.2.60.0100.00716.67
7.2.00.0030.00919.55
7.1.200.0070.00015.77
7.1.100.0120.00418.10
7.1.70.0100.00316.88
7.1.60.0090.00919.90
7.1.00.0100.06722.26
7.0.200.0580.00314.71
7.0.70.0200.05020.00
7.0.60.0170.06319.85
7.0.50.0270.05320.32
7.0.40.0300.04320.43
7.0.30.0270.05020.34
7.0.20.0200.06320.37
7.0.10.0230.05020.36
7.0.00.0170.06020.43
5.6.280.0070.07021.14
5.6.220.0200.05320.70
5.6.210.0130.06320.64
5.6.200.0130.06021.05
5.6.190.0170.06721.09
5.6.180.0270.04721.08
5.6.170.0170.05721.07
5.6.160.0300.07021.02
5.6.150.0130.05721.01
5.6.140.0300.05321.19
5.6.130.0100.06721.13
5.6.120.0130.07021.07
5.6.110.0300.06020.98
5.6.100.0230.05321.09
5.6.90.0270.05721.11
5.6.80.0170.05320.57
5.6.70.0170.05320.48
5.6.60.0130.05720.56
5.6.50.0200.07320.44
5.6.40.0200.05720.43
5.6.30.0200.05720.46
5.6.20.0230.06020.41
5.6.10.0230.06320.40
5.6.00.0170.05720.39
5.5.360.0270.05020.59
5.5.350.0100.06720.47
5.5.340.0170.06320.94
5.5.330.0130.06020.84
5.5.320.0130.05720.82
5.5.310.0170.06020.91
5.5.300.0130.07320.82
5.5.290.0130.06320.96
5.5.280.0230.07020.82
5.5.270.0100.06320.88
5.5.260.0170.06720.93
5.5.250.0230.05020.70
5.5.240.0200.05320.23
5.5.230.0200.06020.33
5.5.220.0170.05320.25
5.5.210.0130.05720.22
5.5.200.0200.05020.29
5.5.190.0170.06320.27
5.5.180.0200.05720.27
5.5.160.0300.04020.20
5.5.150.0100.07320.30
5.5.140.0370.06320.31
5.5.130.0130.05720.20
5.5.120.0230.07020.21
5.5.110.0300.06720.28
5.5.100.0270.06019.98
5.5.90.0130.05720.11
5.5.80.0170.05720.15
5.5.70.0130.06019.99
5.5.60.0170.05020.21
5.5.50.0100.06020.11
5.5.40.0230.04720.07
5.5.30.0170.06019.98
5.5.20.0200.07320.04
5.5.10.0200.06720.14
5.5.00.0130.08020.07

preferences:
63.87 ms | 401 KiB | 5 Q