3v4l.org

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

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)
8.3.60.0110.00718.43
8.3.50.0100.00722.05
8.3.40.0090.00618.65
8.3.30.0100.00318.91
8.3.20.0040.00420.22
8.3.10.0040.00421.79
8.3.00.0000.00822.39
8.2.180.0130.00616.75
8.2.170.0120.00322.96
8.2.160.0070.01320.97
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00419.48
8.2.110.0000.00822.17
8.2.100.0090.00317.79
8.2.90.0040.00419.09
8.2.80.0000.00817.97
8.2.70.0000.00817.75
8.2.60.0040.00417.80
8.2.50.0000.00818.07
8.2.40.0040.00418.02
8.2.30.0040.00417.96
8.2.20.0040.00417.62
8.2.10.0050.00317.69
8.2.00.0060.00317.77
8.1.280.0140.00325.92
8.1.270.0030.00622.21
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0090.00023.96
8.1.230.0060.00619.22
8.1.220.0030.00617.74
8.1.210.0080.00018.77
8.1.200.0030.00717.35
8.1.190.0060.00317.41
8.1.180.0040.00418.65
8.1.170.0060.00318.59
8.1.160.0030.00521.98
8.1.150.0040.00418.59
8.1.140.0080.00017.46
8.1.130.0030.00317.75
8.1.120.0000.00717.45
8.1.110.0040.00417.36
8.1.100.0040.00417.41
8.1.90.0000.00717.52
8.1.80.0070.00017.55
8.1.70.0030.00317.39
8.1.60.0070.00017.55
8.1.50.0040.00417.52
8.1.40.0050.00217.59
8.1.30.0060.00317.67
8.1.20.0000.00817.62
8.1.10.0040.00417.57
8.1.00.0080.00017.53
8.0.300.0040.00418.77
8.0.290.0070.00017.05
8.0.280.0030.00618.39
8.0.270.0070.00017.21
8.0.260.0000.00716.96
8.0.250.0070.00017.03
8.0.240.0000.00717.08
8.0.230.0060.00016.96
8.0.220.0030.00316.90
8.0.210.0000.00716.90
8.0.200.0060.00016.93
8.0.190.0050.00516.98
8.0.180.0030.00516.90
8.0.170.0000.01016.84
8.0.160.0040.00416.89
8.0.150.0030.00316.91
8.0.140.0030.00316.90
8.0.130.0030.00313.33
8.0.120.0000.00816.75
8.0.110.0000.00716.88
8.0.100.0000.00716.77
8.0.90.0050.00216.88
8.0.80.0130.01016.84
8.0.70.0000.00716.84
8.0.60.0050.00316.91
8.0.50.0040.00416.97
8.0.30.0130.00817.14
8.0.20.0060.01217.41
8.0.10.0000.00717.01
8.0.00.0100.00916.87
7.4.330.0020.00215.00
7.4.320.0000.00816.60
7.4.300.0070.00016.72
7.4.290.0030.00316.47
7.4.280.0040.00416.57
7.4.270.0030.00316.44
7.4.260.0030.00616.56
7.4.250.0000.00716.44
7.4.240.0040.00416.59
7.4.230.0030.00316.71
7.4.220.0060.01616.76
7.4.210.0060.01016.62
7.4.200.0000.00716.65
7.4.190.0030.00316.73
7.4.160.0130.00316.61
7.4.150.0110.00717.40
7.4.140.0200.01517.86
7.4.130.0160.01216.53
7.4.120.0110.00516.77
7.4.110.0070.01116.49
7.4.100.0100.01016.50
7.4.90.0070.01816.53
7.4.80.0120.00919.39
7.4.70.0130.00316.63
7.4.60.0070.01016.57
7.4.50.0000.00916.67
7.4.40.0130.00322.77
7.4.30.0130.00316.68
7.4.00.0060.01015.06
7.3.330.0000.00613.13
7.3.320.0000.00513.02
7.3.310.0080.00016.37
7.3.300.0030.00316.16
7.3.290.0090.01016.30
7.3.280.0070.00916.31
7.3.270.0070.01417.40
7.3.260.0100.01416.32
7.3.250.0070.01016.29
7.3.240.0030.01616.47
7.3.230.0110.00616.42
7.3.210.0070.01016.20
7.3.200.0180.00019.39
7.3.190.0120.00616.38
7.3.180.0120.00316.18
7.3.170.0110.00616.32
7.3.160.0080.00916.65
7.3.120.0100.00814.84
7.3.110.0090.00914.77
7.3.100.0000.01415.11
7.3.90.0030.00714.92
7.3.80.0030.00915.07
7.3.70.0000.00814.95
7.3.60.0030.01015.02
7.3.50.0000.01014.75
7.3.40.0030.01314.88
7.3.30.0040.01114.90
7.3.20.0070.00716.64
7.3.10.0030.01016.63
7.3.00.0110.00316.88
7.2.330.0110.00616.57
7.2.320.0070.02016.53
7.2.310.0120.00416.46
7.2.300.0100.00716.56
7.2.290.0000.01616.55
7.2.250.0100.01315.05
7.2.240.0070.01314.96
7.2.230.0060.00315.03
7.2.220.0060.00914.98
7.2.210.0120.00315.13
7.2.200.0030.01215.18
7.2.190.0040.01114.91
7.2.180.0070.00715.04
7.2.170.0060.00615.14
7.2.00.0000.01419.44
7.1.330.0040.00815.94
7.1.320.0030.00515.83
7.1.310.0130.00315.80
7.1.300.0070.00415.70
7.1.290.0030.01315.84
7.1.280.0070.00715.76
7.1.270.0080.00616.01
7.1.260.0030.00715.73
7.1.100.0000.01318.06
7.1.70.0070.00017.20
7.1.60.0140.01019.82
7.1.50.0120.01216.94
7.1.00.0000.07322.34
7.0.200.0040.01316.67
7.0.140.0030.07022.00
7.0.60.0100.07319.85
7.0.50.0000.06717.86
7.0.40.0100.04720.28
7.0.30.0300.07720.15
7.0.20.0270.07320.14
7.0.10.0270.05720.13
7.0.00.0000.04720.22
5.6.280.0000.07721.06
5.6.210.0030.05320.74
5.6.200.0070.07718.21
5.6.190.0130.04320.41
5.6.180.3000.04320.35
5.6.170.0230.04020.54
5.6.160.0030.04320.48
5.6.150.0070.06718.16
5.6.140.0170.07018.17
5.6.130.0170.06018.07
5.6.120.0030.04720.96
5.6.110.0070.08721.01
5.6.100.0170.07021.01
5.6.90.0100.08321.11
5.6.80.0170.07320.43
5.6.70.0170.07720.52
5.5.350.0030.08320.46
5.5.340.0100.07717.97
5.5.330.0030.05020.49
5.5.320.0170.08020.29
5.5.310.0370.06320.23
5.5.300.0130.06317.90
5.5.290.0100.04317.88
5.5.280.0070.04020.75
5.5.270.0100.08720.85
5.5.260.0100.08720.85
5.5.250.0070.08020.61
5.5.240.0070.06320.26
5.4.450.0300.04319.32
5.4.440.0300.05019.49
5.4.430.0130.05319.35
5.4.420.0070.06719.45
5.4.410.0070.05719.14
5.4.400.0770.00018.85
5.4.390.0670.00018.72
5.4.380.0270.05018.63
5.4.370.0330.04718.56
5.4.360.0170.05718.72
5.4.350.0470.05718.78
5.4.340.0500.03718.72
5.4.320.0060.03812.45
5.4.310.0020.05112.45
5.4.300.0080.03412.45
5.4.290.0020.04812.45
5.4.280.0060.04112.34
5.4.270.0090.03212.35
5.4.260.0070.06318.73
5.4.250.0130.04318.64
5.4.240.0100.05718.91
5.4.230.0030.05318.78
5.4.220.0070.05718.73
5.4.210.0100.05018.68
5.4.200.0100.05718.73
5.4.190.0230.03718.89
5.4.180.0030.05318.99
5.4.170.0070.05718.77
5.4.160.0100.04718.77
5.4.150.0030.06019.01
5.4.140.0100.05016.46
5.4.130.0000.05316.25
5.4.120.0130.04716.25
5.4.110.0130.04316.29
5.4.100.0030.05016.20
5.4.90.0100.04716.25
5.4.80.0170.05016.47
5.4.70.0030.05016.38
5.4.60.0030.05316.32
5.4.50.0100.04316.35
5.4.40.0130.04016.32
5.4.30.0030.05316.24
5.4.20.0030.06716.12
5.4.10.0030.05316.31
5.4.00.0070.04715.71
5.3.290.0070.05012.80
5.3.280.0100.04714.70
5.3.270.0170.04314.69
5.3.260.0030.05714.62
5.3.250.0030.05714.44
5.3.240.0000.05714.62
5.3.230.0000.05714.45
5.3.220.0170.06714.58
5.3.210.0100.04714.57
5.3.200.0030.05314.45
5.3.190.0030.05014.65
5.3.180.0070.05014.39
5.3.170.0000.05314.56
5.3.160.0070.06714.41
5.3.150.0070.05014.57
5.3.140.0170.04314.57
5.3.130.0030.07314.43
5.3.120.0100.05014.54
5.3.110.0070.05314.24
5.3.100.0030.05014.02
5.3.90.0070.06014.03
5.3.80.0170.04014.02
5.3.70.0100.04313.93
5.3.60.0100.06714.01
5.3.50.0030.05013.86
5.3.40.0070.05313.80
5.3.30.0130.06713.82
5.3.20.0130.04313.61
5.3.10.0070.06713.66
5.3.00.0130.04013.47
5.2.170.0070.03711.05
5.2.160.0100.03711.14
5.2.150.0030.04311.13
5.2.140.0000.04710.97
5.2.130.0070.04011.03
5.2.120.0130.03311.10
5.2.110.0100.03711.01
5.2.100.0130.04311.11
5.2.90.0030.04011.09
5.2.80.0100.04011.10
5.2.70.0030.04011.23
5.2.60.0070.03710.96
5.2.50.0070.04010.85
5.2.40.0070.03710.93
5.2.30.0070.04310.90
5.2.20.0000.04310.79
5.2.10.0070.05010.91
5.2.00.0030.04010.64
5.1.60.0000.0379.71
5.1.50.0000.03710.05
5.1.40.0130.04010.03
5.1.30.0070.03310.38
5.1.20.0030.03710.27
5.1.10.0070.03310.21
5.1.00.0030.0379.95
5.0.50.0070.0338.50
5.0.40.0070.0208.29
5.0.30.0070.0508.27
5.0.20.0000.0308.22
5.0.10.0030.0278.25
5.0.00.0030.0408.18
4.4.90.0030.0207.50
4.4.80.0000.0237.50
4.4.70.0000.0237.50
4.4.60.0030.0207.50
4.4.50.0030.0307.50
4.4.40.0030.0307.50
4.4.30.0030.0207.50
4.4.20.0100.0177.50
4.4.10.0030.0207.50
4.4.00.0070.0307.50
4.3.110.0000.0237.50
4.3.100.0030.0277.50
4.3.90.0000.0237.50
4.3.80.0000.0337.50
4.3.70.0030.0207.50
4.3.60.0000.0207.50
4.3.50.0030.0207.50
4.3.40.0030.0307.50
4.3.30.0000.0237.50
4.3.20.0030.0207.50
4.3.10.0000.0237.50
4.3.00.0100.0207.38

preferences:
64.15 ms | 401 KiB | 5 Q