3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match('/((?1)?z)/', '')); var_dump(preg_last_error() === \PREG_NO_ERROR);

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)
8.3.60.0120.00916.61
8.3.50.0160.00618.10
8.3.40.0070.01318.88
8.3.30.0000.01418.79
8.3.20.0050.00220.23
8.3.10.0080.00023.66
8.3.00.0040.00423.51
8.2.180.0090.00918.54
8.2.170.0110.00322.96
8.2.160.0100.00719.13
8.2.150.0140.00424.18
8.2.140.0000.00724.66
8.2.130.0040.00422.25
8.2.120.0080.00026.35
8.2.110.0060.00322.39
8.2.100.0120.00019.21
8.2.90.0040.00417.68
8.2.80.0090.00018.96
8.2.70.0100.00517.36
8.2.60.0050.00317.80
8.2.50.0040.00418.07
8.2.40.0050.00517.97
8.2.30.0040.00417.93
8.2.20.0040.00417.86
8.2.10.0000.00718.08
8.2.00.0000.00718.00
8.1.280.0060.00925.92
8.1.270.0040.00423.96
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00620.27
8.1.230.0070.00417.70
8.1.220.0070.00017.74
8.1.210.0000.00818.77
8.1.200.0030.00617.22
8.1.190.0040.00417.23
8.1.180.0060.00318.10
8.1.170.0030.00618.71
8.1.160.0050.00318.69
8.1.150.0000.00720.00
8.1.140.0000.00719.13
8.1.130.0000.00718.77
8.1.120.0080.00017.37
8.1.110.0040.00817.32
8.1.100.0000.00717.43
8.1.90.0000.00817.39
8.1.80.0040.00417.40
8.1.70.0070.00317.45
8.1.60.0050.00317.58
8.1.50.0110.00017.52
8.1.40.0030.00617.56
8.1.30.0060.00317.69
8.1.20.0040.00417.50
8.1.10.0040.00417.47
8.1.00.0030.00517.54
8.0.300.0070.00018.77
8.0.290.0070.00016.63
8.0.280.0030.00318.33
8.0.270.0030.00317.14
8.0.260.0030.00318.76
8.0.250.0030.00316.83
8.0.240.0030.00316.89
8.0.230.0000.00716.84
8.0.220.0020.00516.89
8.0.210.0000.00716.88
8.0.200.0030.00516.89
8.0.190.0060.00316.83
8.0.180.0000.00816.91
8.0.170.0000.00716.81
8.0.160.0000.00716.97
8.0.150.0050.00216.82
8.0.140.0000.00716.89
8.0.130.0000.00613.29
8.0.120.0000.00816.75
8.0.110.0050.00216.81
8.0.100.0070.00016.84
8.0.90.0040.00416.77
8.0.80.0140.00716.89
8.0.70.0070.00016.88
8.0.60.0020.00516.91
8.0.50.0020.00516.78
8.0.30.0070.01217.11
8.0.20.0130.01317.40
8.0.10.0030.00617.01
8.0.00.0120.00616.75
7.4.330.0030.00315.55
7.4.320.0060.00016.65
7.4.300.0030.00616.70
7.4.290.0000.00716.57
7.4.280.0030.00316.52
7.4.270.0030.00516.64
7.4.260.0040.00416.71
7.4.250.0000.00716.61
7.4.240.0080.00016.64
7.4.230.0030.00316.52
7.4.220.0100.00716.67
7.4.210.0140.00716.64
7.4.200.0070.00016.68
7.4.160.0100.00716.44
7.4.150.0160.00617.40
7.4.140.0090.00917.86
7.4.130.0080.01116.63
7.4.120.0120.01016.51
7.4.110.0130.00516.63
7.4.100.0090.00916.64
7.4.90.0070.01316.43
7.4.80.0110.01119.39
7.4.70.0100.01316.68
7.4.60.0130.00316.55
7.4.50.0040.01216.52
7.4.40.0120.00916.70
7.4.30.0120.00616.45
7.4.10.0030.01716.47
7.4.00.0090.00615.66
7.3.330.0050.00013.18
7.3.320.0000.00613.24
7.3.310.0050.00316.27
7.3.300.0070.00016.16
7.3.290.0120.00316.36
7.3.280.0050.01216.35
7.3.270.0130.00417.40
7.3.260.0190.01516.46
7.3.250.0120.00616.47
7.3.240.0120.00616.50
7.3.230.0090.00916.43
7.3.210.0060.01216.70
7.3.200.0100.00616.55
7.3.190.0030.01216.32
7.3.180.0060.01016.59
7.3.170.0090.00616.27
7.3.160.0120.00416.43
7.3.130.0070.01016.37
7.3.120.0120.00616.35
7.3.110.0040.01216.33
7.3.100.0060.00316.13
7.3.90.0130.00316.23
7.3.80.0060.00916.13
7.3.70.0000.01316.41
7.3.60.0000.01316.42
7.3.50.0060.00316.37
7.3.40.0030.00616.24
7.3.30.0080.00816.48
7.3.20.0080.00818.20
7.3.10.0030.01318.14
7.3.00.0000.01718.13
7.2.330.0090.00916.30
7.2.320.0070.01016.62
7.2.310.0090.00916.49
7.2.300.0070.01016.60
7.2.290.0030.01416.44
7.2.260.0060.01116.35
7.2.250.0130.01016.02
7.2.240.0090.00616.38
7.2.230.0060.00616.48
7.2.220.0080.00816.39
7.2.210.0090.00916.38
7.2.200.0030.00916.48
7.2.190.0100.00316.37
7.2.180.0090.00316.53
7.2.170.0030.00716.49
7.2.160.0040.00716.41
7.2.150.0090.00618.38
7.2.140.0130.00318.30
7.2.130.0040.01118.13
7.2.120.0060.00918.34
7.2.110.0090.00817.34
7.2.100.0040.01218.18
7.2.90.0140.00618.29
7.2.80.0030.01418.12
7.2.70.0060.01018.14
7.2.60.0030.01517.58
7.2.50.0040.00818.22
7.2.40.0070.00718.13
7.2.30.0130.00318.25
7.2.20.0060.00918.45
7.2.10.0220.01018.22
7.2.00.0070.01018.18
7.1.330.0070.01117.22
7.1.320.0120.00417.42
7.1.310.0060.00617.27
7.1.300.0090.00317.30
7.1.290.0080.00417.17
7.1.280.0040.01117.28
7.1.270.0080.00417.22
7.1.260.0060.00917.30
7.1.250.0000.01517.12
7.1.240.0090.00617.23
7.1.230.0080.00817.04
7.1.220.0080.01217.10
7.1.210.0090.00917.18
7.1.200.0060.00916.40
7.1.190.0120.00617.35
7.1.180.0000.01817.15
7.1.170.0100.00017.07
7.1.160.0090.00317.31
7.1.150.0030.01317.33
7.1.140.0030.01217.38
7.1.130.0030.01017.14
7.1.120.0030.01317.15
7.1.110.0360.00616.64
7.1.100.0250.01116.81
7.1.90.0320.01316.63
7.1.80.0520.00916.68
7.1.70.0500.00716.24
7.1.60.0600.01225.21
7.1.50.0370.00825.02
7.1.40.0410.01024.99
7.1.30.0460.00724.93
7.1.20.0240.01025.12
7.1.10.0180.00515.99
7.1.00.0180.00716.06
7.0.330.0070.00716.93
7.0.320.0130.00316.93
7.0.310.0100.00316.93
7.0.300.0080.00817.04
7.0.290.0040.00816.79
7.0.280.0030.00916.85
7.0.270.0080.00317.07
7.0.260.0050.00417.16
7.0.250.0260.00716.44
7.0.240.0280.01216.43
7.0.230.0500.00816.41
7.0.220.0330.01016.16
7.0.210.0340.00915.80
7.0.200.0330.00915.96
7.0.190.0320.00815.95
7.0.180.0260.01315.70
7.0.170.0310.00615.73
7.0.160.0190.00715.68
7.0.150.0140.00815.79
7.0.140.0130.00815.66
7.0.130.0160.00715.75
7.0.120.0160.00715.79
7.0.110.0220.01015.78
7.0.100.0240.01215.81
7.0.90.0140.01215.68
7.0.80.0260.00715.64
7.0.70.0270.00715.77
7.0.60.0260.01115.55
7.0.50.0330.00315.77
7.0.40.0340.00514.72
7.0.30.0290.01214.82
7.0.20.0270.00914.66
7.0.10.0290.00514.75
7.0.00.0540.00714.78
5.6.400.0060.00315.71
5.6.390.0060.00915.90
5.6.380.0140.00015.75
5.6.370.0000.01515.69
5.6.360.0030.01215.71
5.6.350.0000.01115.68
5.6.340.0090.00915.94
5.6.330.0060.00615.91
5.6.320.0030.01315.87
5.6.310.0070.01015.83
5.6.300.0070.01015.70
5.6.290.0060.00615.73
5.6.280.0000.01315.81
5.6.270.0120.00015.60
5.6.260.0100.00615.81
5.6.250.0030.00715.80
5.6.240.0090.00615.72
5.6.230.0030.01015.88
5.6.220.0000.01415.70
5.6.210.0090.00615.59
5.6.200.0000.01315.86
5.6.190.0060.00615.80
5.6.180.0060.00615.55
5.6.170.0030.01015.70
5.6.160.0030.01215.73
5.6.150.0030.00615.55
5.6.140.0040.01115.69
5.6.130.0040.01115.89
5.6.120.0070.00715.53
5.6.110.0100.00415.59
5.6.100.0030.01315.62
5.6.90.0040.00815.98
5.6.80.0100.00715.71
5.6.70.0040.01115.58
5.6.60.0060.01015.54
5.6.50.0070.01015.64
5.6.40.0070.01015.83
5.6.30.0070.00715.82
5.6.20.0000.01315.78
5.6.10.0040.01115.77
5.6.00.0030.01015.50

preferences:
76.36 ms | 400 KiB | 5 Q