3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(PCRE_VERSION, ini_get('pcre.backtrack_limit'),ini_get('pcre.recursion_limit')); //$b = preg_replace('/b.*b/', '', 'baab' . str_repeat('a', 100024)); $b = preg_match('/(.)*/', str_repeat('x', 6000)); var_dump($b);

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)
8.3.40.0040.01118.96
8.3.30.0100.00319.27
8.3.20.0040.00420.21
8.3.10.0030.00522.09
8.3.00.0080.00022.46
8.2.170.0110.00722.96
8.2.160.0070.00721.12
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0000.00819.61
8.2.110.0070.00322.38
8.2.100.0090.00319.77
8.2.90.0060.00319.22
8.2.80.0040.00419.79
8.2.70.0040.00417.75
8.2.60.0000.00818.16
8.2.50.0000.00818.07
8.2.40.0000.00918.22
8.2.30.0000.00718.04
8.2.20.0000.00717.93
8.2.10.0040.00419.78
8.2.00.0040.00417.81
8.1.270.0040.00422.28
8.1.260.0030.00926.35
8.1.250.0080.00028.09
8.1.240.0060.00323.96
8.1.230.0090.00319.18
8.1.220.0030.00617.74
8.1.210.0050.00318.77
8.1.200.0030.00617.48
8.1.190.0050.00317.63
8.1.180.0030.00618.10
8.1.170.0070.00318.84
8.1.160.0080.00022.11
8.1.150.0040.00418.89
8.1.140.0000.00917.58
8.1.130.0030.00317.97
8.1.120.0000.00717.69
8.1.110.0020.00517.67
8.1.100.0070.00017.57
8.1.90.0030.00517.66
8.1.80.0000.00717.69
8.1.70.0030.00317.63
8.1.60.0040.00417.85
8.1.50.0020.00517.76
8.1.40.0000.00817.77
8.1.30.0030.00517.84
8.1.20.0000.00817.77
8.1.10.0040.00417.67
8.1.00.0040.00417.55
8.0.300.0040.00418.77
8.0.290.0000.00917.18
8.0.280.0030.00318.48
8.0.270.0030.00317.34
8.0.260.0000.00717.04
8.0.250.0000.00717.05
8.0.240.0030.00617.11
8.0.230.0000.00817.21
8.0.220.0040.00417.00
8.0.210.0000.00717.02
8.0.200.0030.00317.16
8.0.190.0070.00017.16
8.0.180.0000.00717.04
8.0.170.0050.00317.00
8.0.160.0070.00017.04
8.0.150.0040.00416.98
8.0.140.0100.00017.10
8.0.130.0030.00313.61
8.0.120.0040.00417.06
8.0.110.0070.00317.13
8.0.100.0040.00417.14
8.0.90.0000.00717.14
7.4.330.0050.00015.00
7.4.320.0080.00016.78
7.4.300.0030.00316.79
7.4.290.0000.00816.94
7.4.280.0000.00716.75
7.4.270.0030.00616.68
7.4.260.0030.00316.89
7.4.250.0000.00816.64
7.4.240.0040.00416.76
7.4.230.0040.00416.71
7.4.220.0060.00316.75
7.4.60.0120.00416.73
7.4.50.0040.00416.78
7.4.40.0060.00922.77
7.4.00.0100.00715.23
7.3.330.0030.00313.40
7.3.320.0030.00313.14
7.3.310.0030.00516.29
7.3.300.0030.00516.41
7.3.180.0060.00916.65
7.3.120.0070.01014.84
7.3.110.0070.01014.89
7.3.100.0060.01114.75
7.3.90.0080.00814.83
7.3.80.0080.00514.96
7.3.70.0050.01015.07
7.3.60.0060.00714.88
7.3.50.0050.00714.88
7.3.40.0100.00314.79
7.3.30.0050.00814.86
7.3.20.0060.00916.84
7.3.10.0080.00716.85
7.3.00.0100.00316.76
7.2.250.0070.01015.18
7.2.240.0050.01615.13
7.2.230.0050.01015.20
7.2.220.0050.00914.95
7.2.210.0060.00915.06
7.2.200.0040.00715.14
7.2.190.0050.00915.01
7.2.180.0060.00615.00
7.2.170.0040.00714.90
7.2.110.0190.00316.77
7.2.60.0040.00816.81
7.2.00.0090.00619.49
7.1.330.0090.00615.89
7.1.320.0040.00815.97
7.1.310.0090.00515.97
7.1.300.0070.00515.85
7.1.290.0020.01116.05
7.1.280.0050.00715.93
7.1.270.0050.00815.89
7.1.260.0070.00415.76
7.1.200.0080.00815.92
7.1.100.0070.00718.12
7.1.70.0040.00416.98
7.1.60.0100.01319.82
7.1.50.0030.01016.99
7.1.00.0070.07322.35
7.0.200.0090.00616.95
7.0.140.0100.07022.14
7.0.100.0170.04719.97
7.0.90.0100.08019.95
7.0.80.0070.08319.96
7.0.70.0270.05319.89
7.0.60.0370.08319.98
7.0.50.0300.05320.40
7.0.40.0030.08320.11
7.0.30.0100.05320.13
7.0.20.0130.07020.05
7.0.10.0100.08720.18
7.0.00.0070.08020.12
5.6.280.0100.06726.93
5.6.250.0070.04326.62
5.6.240.0070.04026.61
5.6.230.0100.07026.50
5.6.220.0100.08026.53
5.6.210.0070.06326.38
5.6.200.0070.05726.84
5.6.190.0070.07726.79
5.6.180.0030.08026.86
5.6.170.0100.08026.77
5.6.160.0070.08026.84
5.6.150.0030.05326.85
5.6.140.0100.08326.93
5.6.130.0070.07726.93
5.6.120.0100.07726.99
5.6.110.0170.08026.75
5.6.100.0030.05326.92
5.6.90.0070.07726.85
5.6.80.0330.05026.38
5.6.70.0100.07726.34
5.6.60.0130.08026.20
5.6.50.0130.03326.34
5.6.40.0100.04726.23
5.6.30.0070.05326.23
5.6.20.0170.07326.29
5.6.10.0130.07026.22
5.6.00.0070.05326.22
5.5.380.0100.04026.40
5.5.370.0070.08026.42
5.5.360.0170.07026.36
5.5.350.0130.05726.19
5.5.340.0130.07726.72
5.5.330.0100.07326.70
5.5.320.0170.07026.65
5.5.310.0100.08026.65
5.5.300.0170.07726.69
5.5.290.0230.07726.69
5.5.280.0130.08026.73
5.5.270.0170.08026.61
5.5.260.0100.04726.59
5.5.250.0070.05726.39
5.5.240.0070.09326.11
5.5.230.0200.07326.10
5.5.220.0130.08026.06
5.5.210.0200.07026.02
5.5.200.0070.08025.89
5.5.190.0170.08026.03
5.5.180.0130.07726.07
5.5.160.0230.06726.00
5.5.150.0200.07026.06
5.5.140.0130.08026.10
5.5.130.0070.05026.07
5.5.120.0100.07026.10
5.5.110.0170.06726.04
5.5.100.0130.06725.89
5.5.90.0070.08025.91
5.5.80.0130.06725.89
5.5.70.0170.06025.87
5.5.60.0030.04725.76
5.5.50.0130.04325.82
5.5.40.0030.05025.87
5.5.30.0030.07325.96
5.5.20.0100.06325.77
5.5.10.0100.08325.84
5.5.00.0130.04725.89
5.4.450.0070.06324.75
5.4.440.0070.08324.84
5.4.430.0230.06724.59
5.4.420.0170.07324.91
5.4.410.0070.08024.63
5.4.400.0070.07724.71
5.4.390.0200.06724.54
5.4.380.0100.07724.32
5.4.370.0130.07024.53
5.4.360.0070.08024.61
5.4.350.0130.07724.61
5.4.340.0100.05024.59
5.4.320.0100.07724.46
5.4.310.0100.07724.71
5.4.300.0200.06324.54
5.4.290.0200.06724.63
5.4.280.0170.07024.41
5.4.270.0070.04324.61
5.4.260.0000.04324.60
5.4.250.0070.08024.51
5.4.240.0100.03024.55
5.4.230.0030.06724.62
5.4.220.0030.06724.29
5.4.210.0100.04024.44
5.4.200.0200.07024.44
5.4.190.0130.08024.29
5.4.180.0070.05324.45
5.4.170.0070.07724.62
5.4.160.0100.04024.56
5.4.150.0170.07024.49
5.4.140.0130.07021.61
5.4.130.0130.05721.82
5.4.120.0130.06721.76
5.4.110.0030.07721.81
5.4.100.0070.08021.87
5.4.90.0130.06021.83
5.4.80.0170.06021.18
5.4.70.0130.06721.26
5.4.60.0000.07021.22
5.4.50.0100.05321.14
5.4.40.0200.06721.32
5.4.30.0130.04321.27
5.4.20.0130.03721.25
5.4.10.0100.07721.12
5.4.00.0100.03720.71
5.3.290.0100.05020.13
5.3.280.0130.06719.88
5.3.270.0030.08019.90
5.3.260.0100.07719.87
5.3.250.0030.04319.72
5.3.240.0100.03319.81
5.3.230.0270.06719.81
5.3.220.0130.03722.32
5.3.210.0130.07322.21
5.3.200.0100.03322.17
5.3.190.0130.06022.32
5.3.180.0130.04022.32
5.3.170.0100.07722.32
5.3.160.0070.07322.30
5.3.150.0170.04022.32
5.3.140.0100.06722.36
5.3.130.0100.08322.23
5.3.120.0130.06322.20
5.3.110.0130.07322.25
5.3.100.0130.06721.79
5.3.90.0070.07720.46
5.3.80.0070.07020.52
5.3.70.0000.08020.46
5.3.60.0130.04320.58
5.3.50.0130.04020.68
5.3.40.0030.08320.65
5.3.30.0130.05020.16
5.3.20.0070.06720.13
5.3.10.0070.07719.73
5.3.00.0170.04319.71
5.2.170.0130.06317.41
5.2.160.0070.06317.38
5.2.150.0100.06017.36
5.2.140.0030.06317.50
5.2.130.0030.04317.27
5.2.120.0070.06017.34
5.2.110.0000.06317.41
5.2.100.0100.06017.30
5.2.90.0030.05317.13
5.2.80.0070.07016.97
5.2.70.0170.06017.18
5.2.60.0200.05317.08
5.2.50.0070.06016.88
5.2.40.0100.05717.04
5.2.30.0100.03016.59
5.2.20.0100.06316.56
5.2.10.0100.06016.36
5.2.00.0030.04716.28
5.1.60.0030.05315.69
5.1.50.0100.05315.51
5.1.40.0030.03715.73
5.1.30.0100.04016.03
5.1.20.0070.04015.93
5.1.10.0070.05715.58
5.1.00.0070.04715.78
5.0.50.0030.04714.20
5.0.40.0030.03713.34
5.0.30.0030.04713.16
5.0.20.0070.04013.21
5.0.10.0070.04313.17
5.0.00.0030.05313.18
4.4.90.0030.02011.79
4.4.80.0070.03311.52
4.4.70.0100.04311.53
4.4.60.0100.03311.45
4.4.50.0030.03711.42
4.4.40.0100.04011.46
4.4.30.0000.04011.46
4.4.20.0130.02711.56
4.4.10.0100.01311.49
4.4.00.0100.05011.44
4.3.110.0070.03310.66
4.3.100.0100.01710.68
4.3.90.0030.03710.63
4.3.80.0070.04310.68
4.3.70.0030.01710.60
4.3.60.0100.03010.67
4.3.50.0030.03010.62
4.3.40.0070.04010.64
4.3.30.0000.0379.46
4.3.20.0100.0309.06
4.3.10.0030.0378.95
4.3.00.0070.0238.95

preferences:
47.8 ms | 400 KiB | 5 Q