3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo "regex!"; echo preg_replace('/(\d+)-?(\d)/', '${1}${1}', "16656400");

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)
8.3.60.0040.01118.56
8.3.50.0110.01121.99
8.3.40.0080.00818.79
8.3.30.0070.00719.09
8.3.20.0040.00420.10
8.3.10.0080.00021.90
8.3.00.0060.00322.44
8.2.180.0070.00716.75
8.2.170.0070.00722.96
8.2.160.0130.00320.94
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0100.00726.16
8.2.120.0040.00419.38
8.2.110.0030.00622.22
8.2.100.0040.00817.72
8.2.90.0060.00319.27
8.2.80.0060.00317.97
8.2.70.0030.00717.63
8.2.60.0040.00417.78
8.2.50.0000.00818.07
8.2.40.0040.00418.22
8.2.30.0000.00818.03
8.2.20.0000.00817.62
8.2.10.0040.00417.74
8.2.00.0030.00717.63
8.1.280.0070.01025.92
8.1.270.0130.00622.16
8.1.260.0030.00626.35
8.1.250.0080.00028.09
8.1.240.0030.00623.78
8.1.230.0070.00419.14
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0060.00317.22
8.1.190.0040.00417.43
8.1.180.0080.00018.48
8.1.170.0030.00618.63
8.1.160.0040.00422.02
8.1.150.0000.00718.70
8.1.140.0070.00017.39
8.1.130.0050.00217.74
8.1.120.0030.00317.50
8.1.110.0040.00417.44
8.1.100.0030.00517.36
8.1.90.0000.00717.47
8.1.80.0000.00717.49
8.1.70.0040.00417.45
8.1.60.0030.00617.51
8.1.50.0000.00717.43
8.1.40.0020.00517.50
8.1.30.0040.00417.52
8.1.20.0060.00317.61
8.1.10.0000.00717.58
8.1.00.0040.00417.42
8.0.300.0040.00418.77
8.0.290.0040.00416.93
8.0.280.0030.00518.32
8.0.270.0030.00317.13
8.0.260.0060.00016.90
8.0.250.0060.00316.95
8.0.240.0090.00017.07
8.0.230.0000.00716.97
8.0.220.0040.00416.86
8.0.210.0030.00316.80
8.0.200.0060.00016.96
8.0.190.0060.00516.99
8.0.180.0000.00716.86
8.0.170.0060.00316.84
8.0.160.0040.00416.82
8.0.150.0060.00316.77
8.0.140.0070.00016.84
8.0.130.0030.00313.33
8.0.120.0060.00316.89
8.0.110.0000.00816.95
8.0.100.0040.00416.73
8.0.90.0000.00716.97
8.0.80.0120.00316.96
8.0.70.0000.00816.95
8.0.60.0070.00016.98
8.0.50.0040.00416.93
8.0.30.0130.00717.00
8.0.20.0110.01117.40
8.0.10.0000.00716.93
8.0.00.0050.01316.74
7.4.330.0050.00015.00
7.4.320.0060.00016.63
7.4.300.0070.00016.59
7.4.290.0050.00216.61
7.4.280.0000.00716.66
7.4.270.0030.00316.66
7.4.260.0050.00316.70
7.4.250.0050.00316.50
7.4.240.0030.00516.73
7.4.230.0070.00016.40
7.4.220.0030.01416.71
7.4.210.0050.01216.66
7.4.200.0070.00016.75
7.4.190.0070.00016.40
7.4.160.0060.01216.56
7.4.150.0070.01017.40
7.4.140.0120.00817.86
7.4.130.0140.00616.46
7.4.120.0100.00716.57
7.4.110.0040.01816.39
7.4.100.0060.01316.41
7.4.90.0140.00316.52
7.4.80.0170.00719.39
7.4.70.0100.00616.42
7.4.60.0100.00616.52
7.4.50.0000.00616.66
7.4.40.0100.00722.77
7.4.30.0080.00816.49
7.4.00.0090.00914.96
7.3.330.0030.00313.18
7.3.320.0020.00313.18
7.3.310.0040.00416.28
7.3.300.0040.00416.30
7.3.290.0110.00716.24
7.3.280.0050.01216.29
7.3.270.0100.01417.40
7.3.260.0000.01716.52
7.3.250.0090.00916.58
7.3.240.0040.01416.65
7.3.230.0040.01616.39
7.3.210.0080.00816.61
7.3.200.0060.01219.39
7.3.190.0060.01116.29
7.3.180.0080.00816.45
7.3.170.0070.01016.34
7.3.160.0110.00516.31
7.3.120.0050.00915.09
7.3.110.0060.00914.85
7.3.100.0050.00714.96
7.3.90.0100.00114.88
7.3.80.0140.00214.90
7.3.70.0070.00514.76
7.3.60.0090.00314.85
7.3.50.0030.00914.84
7.3.40.0070.00814.94
7.3.30.0020.01414.88
7.3.20.0030.01316.65
7.3.10.0090.00416.74
7.3.00.0060.00716.80
7.2.330.0090.00916.61
7.2.320.0090.01016.58
7.2.310.0180.00316.66
7.2.300.0090.00616.57
7.2.290.0040.01216.65
7.2.250.0100.00715.16
7.2.240.0080.00915.14
7.2.230.0100.00514.96
7.2.220.0050.00614.77
7.2.210.0060.00814.99
7.2.200.0080.00815.06
7.2.190.0080.00815.04
7.2.180.0040.01214.88
7.2.170.0030.01215.13
7.2.160.0040.00714.68
7.2.150.0030.01016.86
7.2.140.0080.00616.89
7.2.130.0080.00617.01
7.2.120.0120.00616.89
7.2.110.0100.00716.97
7.2.100.0080.00916.93
7.2.90.0020.01016.86
7.2.80.0070.00816.99
7.2.70.0080.00716.84
7.2.60.0090.00716.75
7.2.50.0070.00717.04
7.2.40.0090.00516.86
7.2.30.0050.00916.84
7.2.20.0060.00716.97
7.2.10.0050.01116.79
7.2.00.0050.01017.47
7.1.330.0040.01215.86
7.1.320.0050.00715.83
7.1.310.0040.01115.82
7.1.300.0010.01315.70
7.1.290.0050.01015.93
7.1.280.0120.00315.81
7.1.270.0040.01115.90
7.1.260.0060.00415.90
7.1.250.0120.00415.75
7.1.200.0030.00915.73
7.1.100.0060.00618.30
7.1.70.0000.01617.11
7.1.60.0090.01219.82
7.1.50.0070.01016.94
7.1.00.0070.07322.38
7.0.200.0050.00516.79
7.0.140.0030.07321.93
7.0.60.0070.07721.71
7.0.50.0070.06317.91
7.0.40.0070.06719.92
7.0.30.0330.07320.18
7.0.20.0370.04020.22
7.0.10.0230.07320.31
7.0.00.0030.04020.10
5.6.280.0030.07320.85
5.6.210.0070.08320.50
5.6.200.0100.07718.18
5.6.190.0100.08320.47
5.6.180.3830.04320.47
5.6.170.0270.08320.38
5.6.160.0000.04320.47
5.6.150.0100.05318.16
5.6.140.0000.04318.21
5.6.130.0100.08018.21
5.6.120.0200.07321.13
5.6.110.0230.05320.99
5.6.100.0030.08720.93
5.6.90.0030.08321.07
5.6.80.0070.04020.36
5.5.350.0270.07720.31
5.5.340.0030.08717.92
5.5.330.0100.04320.37
5.5.320.0170.05320.28
5.5.310.0230.06020.50
5.5.300.0130.07717.96
5.5.290.0030.04017.97
5.5.280.0070.03720.86
5.5.270.0100.07720.86
5.5.260.0130.07720.75
5.5.250.0130.07320.76
5.5.240.0170.07320.14
5.4.450.0330.04719.61
5.4.440.0200.05019.32
5.4.430.0130.05319.36
5.4.420.0170.06019.31
5.4.410.0170.04719.52
5.4.400.0770.00018.72
5.4.390.0630.00018.72
5.4.380.0230.05318.68
5.4.370.0270.06318.52
5.4.360.0330.04718.68
5.4.350.0300.05318.70
5.4.340.0330.04718.64
5.4.320.0050.03912.45
5.4.310.0050.04312.45
5.4.300.0050.03812.45
5.4.290.0100.03512.45
5.4.280.0060.04612.35
5.4.270.0060.03512.34
5.4.260.0070.08018.90
5.4.250.0030.05718.75
5.4.240.0070.05318.87
5.4.230.0070.05318.85
5.4.220.0030.06018.63
5.4.210.0030.05318.97
5.4.200.0070.05718.88
5.4.190.0170.04018.91
5.4.180.0070.08018.84
5.4.170.0170.05718.81
5.4.160.0100.05318.73
5.4.150.0170.04718.85
5.4.140.0070.06016.26
5.4.130.0070.07316.26
5.4.120.0030.06316.44
5.4.110.0070.05016.33
5.4.100.0070.05716.47
5.4.90.0070.04716.48
5.4.80.0070.05016.32
5.4.70.0170.04016.19
5.4.60.0030.05316.36
5.4.50.0070.04716.32
5.4.40.0100.05716.43
5.4.30.0030.05016.30
5.4.20.0100.04316.44
5.4.10.0100.05016.35
5.4.00.0100.05715.91
5.3.290.0060.04212.80
5.3.280.0070.05014.59
5.3.270.0100.05014.48
5.3.260.0100.05314.70
5.3.250.0070.05314.70
5.3.240.0130.06014.47
5.3.230.0200.04714.64
5.3.220.0030.05714.45
5.3.210.0100.05014.39
5.3.200.0030.05314.56
5.3.190.0000.06014.71
5.3.180.0030.05314.41
5.3.170.0100.04714.60
5.3.160.0130.04314.43
5.3.150.0030.05714.57
5.3.140.0100.04714.66
5.3.130.0100.05314.56
5.3.120.0130.05014.59
5.3.110.0130.04714.31
5.3.100.0070.04714.05
5.3.90.0070.05313.93
5.3.80.0130.05013.85
5.3.70.0100.04713.78
5.3.60.0030.05313.99
5.3.50.0100.05014.04
5.3.40.0070.05313.83
5.3.30.0100.04713.82
5.3.20.0000.05713.73
5.3.10.0100.04713.66
5.3.00.0100.04713.47
5.2.170.0030.04711.26
5.2.160.0070.03711.16
5.2.150.0070.05311.07
5.2.140.0070.04011.15
5.2.130.0070.05711.03
5.2.120.0070.03711.19
5.2.110.0070.03710.98
5.2.100.0030.05011.11
5.2.90.0100.05310.98
5.2.80.0000.05011.09
5.2.70.0130.05010.97
5.2.60.0100.03710.81
5.2.50.0100.03310.93
5.2.40.0070.03710.99
5.2.30.0030.04010.96
5.2.20.0100.03710.72
5.2.10.0100.05010.86
5.2.00.0070.04010.79
5.1.60.0130.02710.23
5.1.50.0000.0409.93
5.1.40.0070.0339.88
5.1.30.0070.03710.16
5.1.20.0070.03310.28
5.1.10.0070.03310.11
5.1.00.0030.0339.91
5.0.50.0030.0438.68
5.0.40.0070.0238.36
5.0.30.0000.0438.07
5.0.20.0070.0378.38
5.0.10.0100.0208.13
5.0.00.0100.0438.12
4.4.90.0070.0177.50
4.4.80.0100.0137.50
4.4.70.0000.0237.50
4.4.60.0070.0177.50
4.4.50.0030.0237.50
4.4.40.0030.0337.50
4.4.30.0070.0177.50
4.4.20.0070.0277.50
4.4.10.0070.0177.50
4.4.00.0030.0337.50
4.3.110.0000.0277.50
4.3.100.0070.0307.50
4.3.90.0030.0207.50
4.3.80.0030.0337.50
4.3.70.0030.0207.50
4.3.60.0000.0237.50
4.3.50.0030.0207.50
4.3.40.0070.0307.50
4.3.30.0070.0237.50
4.3.20.0100.0207.50
4.3.10.0030.0177.50
4.3.00.0070.0237.48

preferences:
40.66 ms | 401 KiB | 5 Q