3v4l.org

run code in 300+ PHP versions simultaneously
<?php preg_match_all('~[\\\\a-z0-9_]~', 'a\\\\b', $matches); print_r($matches); preg_match_all('~[a-z0-9_\\\\]~', 'a\\\\b', $matches); print_r($matches); preg_match_all('~[\\d-z]~', 'a\\\\b', $matches); print_r($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)
8.3.60.0110.00718.56
8.3.50.0100.01018.32
8.3.40.0120.00318.96
8.3.30.0110.00418.86
8.3.20.0040.00421.77
8.3.10.0080.00021.64
8.3.00.0080.00023.48
8.2.180.0160.00317.13
8.2.170.0070.00722.96
8.2.160.0100.00320.35
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0060.00320.89
8.2.110.0090.00022.08
8.2.100.0110.00017.84
8.2.90.0050.00317.75
8.2.80.0090.00317.97
8.2.70.0000.00817.90
8.2.60.0030.00517.91
8.2.50.0040.00418.10
8.2.40.0000.00920.42
8.2.30.0040.00419.19
8.2.20.0000.00717.94
8.2.10.0020.00519.01
8.2.00.0070.00319.01
8.1.280.0030.01325.92
8.1.270.0080.00023.91
8.1.260.0030.00526.35
8.1.250.0090.00028.09
8.1.240.0000.00922.18
8.1.230.0110.00019.17
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0070.00317.23
8.1.190.0040.00417.13
8.1.180.0050.00318.10
8.1.170.0000.00818.66
8.1.160.0000.00718.82
8.1.150.0100.00018.89
8.1.140.0040.00418.74
8.1.130.0000.00720.08
8.1.120.0000.00717.35
8.1.110.0040.00417.48
8.1.100.0040.00417.36
8.1.90.0000.00817.48
8.1.80.0040.00417.46
8.1.70.0030.00317.50
8.1.60.0050.00317.59
8.1.50.0000.00817.56
8.1.40.0000.00917.55
8.1.30.0040.00417.63
8.1.20.0030.00617.56
8.1.10.0040.00417.61
8.1.00.0020.00517.38
8.0.300.0080.00019.91
8.0.290.0040.00416.75
8.0.280.0070.00018.27
8.0.270.0040.00417.14
8.0.260.0060.00018.38
8.0.250.0070.00017.05
8.0.240.0000.00617.07
8.0.230.0040.00416.90
8.0.220.0000.00716.94
8.0.210.0040.00416.95
8.0.200.0030.00317.06
8.0.190.0040.00417.07
8.0.180.0070.00016.97
8.0.170.0060.00616.82
8.0.160.0040.00416.97
8.0.150.0000.00716.86
8.0.140.0040.00416.81
8.0.130.0000.00613.35
8.0.120.0040.00416.92
8.0.110.0000.00716.91
8.0.100.0030.00316.96
8.0.90.0070.00016.77
8.0.80.0090.01316.99
8.0.70.0050.00317.02
8.0.60.0040.00416.76
8.0.50.0080.00016.76
8.0.30.0070.01217.09
8.0.20.0160.00317.16
8.0.10.0050.00217.02
8.0.00.0090.01016.87
7.4.330.0020.00215.55
7.4.320.0060.00016.57
7.4.300.0030.00316.65
7.4.290.0040.00416.58
7.4.280.0080.00016.48
7.4.270.0060.00316.57
7.4.260.0000.00716.52
7.4.250.0040.00416.68
7.4.240.0030.00416.63
7.4.230.0030.00416.75
7.4.220.0000.00816.50
7.4.210.0090.00816.71
7.4.200.0000.00716.71
7.4.160.0120.00816.61
7.4.130.0130.00516.65
7.4.120.0130.00616.54
7.4.110.0060.01216.61
7.4.100.0070.01416.66
7.4.90.0090.00916.74
7.4.80.0080.00819.39
7.4.70.0000.01716.55
7.4.60.0040.01216.68
7.4.50.0110.00716.66
7.4.40.0230.00616.77
7.4.10.0090.00815.72
7.4.00.0090.00715.49
7.3.330.0050.00313.04
7.3.320.0030.00313.23
7.3.310.0030.00316.39
7.3.300.0070.00016.39
7.3.290.0020.01216.32
7.3.280.0130.00716.45
7.3.260.0100.00916.49
7.3.240.0060.01216.41
7.3.230.0110.00716.58
7.3.210.0100.00716.39
7.3.200.0060.00916.63
7.3.190.0060.00916.39
7.3.180.0060.01016.42
7.3.170.0060.01116.65
7.3.160.0120.00616.36
7.3.130.0090.00815.58
7.3.120.0060.01115.52
7.3.110.0060.00915.73
7.3.100.0080.00715.61
7.3.90.0120.00515.68
7.3.80.0050.01015.54
7.3.70.0090.00515.50
7.3.60.0070.00615.36
7.3.50.0050.00815.41
7.3.40.0080.00515.16
7.3.30.0060.00815.26
7.3.20.0070.00717.12
7.3.10.0030.01217.08
7.3.00.0070.00417.07
7.2.330.0110.00716.46
7.2.320.0100.00716.61
7.2.310.0100.00616.65
7.2.300.0070.01016.36
7.2.290.0130.00316.49
7.2.260.0030.01215.65
7.2.250.0100.00815.68
7.2.240.0030.01315.69
7.2.230.0120.00515.83
7.2.220.0020.01215.58
7.2.210.0050.00815.70
7.2.200.0090.00615.72
7.2.190.0060.00915.35
7.2.180.0070.00815.36
7.2.170.0070.00615.56
7.2.160.0070.00715.59
7.2.150.0030.00917.34
7.2.140.0070.01117.31
7.2.130.0070.00517.40
7.2.120.0080.00417.28
7.2.110.0080.00717.43
7.2.100.0100.00417.25
7.2.90.0050.00617.40
7.2.80.0040.01317.20
7.2.70.0040.01217.11
7.2.60.0070.00917.38
7.2.50.0080.00617.36
7.2.40.0090.00717.22
7.2.30.0050.01117.43
7.2.20.0080.00717.43
7.2.10.0080.00717.28
7.2.00.0100.00717.37
7.1.330.0080.00616.63
7.1.320.0030.01216.79
7.1.310.0090.00516.61
7.1.300.0050.00916.31
7.1.290.0050.01016.41
7.1.280.0060.00516.32
7.1.270.0060.01116.31
7.1.260.0090.00616.26
7.1.250.0050.00716.29
7.1.240.0150.00216.53
7.1.230.0060.00716.60
7.1.220.0050.01216.41
7.1.210.0040.00816.47
7.1.200.0040.01216.72
7.1.190.0050.01116.71
7.1.180.0020.01016.72
7.1.170.0090.00716.53
7.1.160.0060.00816.67
7.1.150.0020.01416.72
7.1.140.0050.01116.66
7.1.130.0100.00516.52
7.1.120.0040.00716.67
7.1.110.0070.00716.58
7.1.100.0040.01116.56
7.1.90.0050.01116.56
7.1.80.0030.01116.70
7.1.70.0070.00716.75
7.1.60.0070.00616.65
7.1.50.0050.01116.51
7.1.40.0050.00616.71
7.1.30.0060.00816.51
7.1.20.0010.01116.70
7.1.10.0050.00816.53
7.1.00.0070.00516.72

preferences:
71.85 ms | 401 KiB | 5 Q