3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "ab"; echo preg_replace("/(a)|(b)/", "(+${2}+)(-$1-)", $a);

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)
8.3.60.0090.00616.63
8.3.50.0080.00816.51
8.3.40.0150.00318.96
8.3.30.0070.00718.97
8.3.20.0060.00320.25
8.3.10.0060.00321.82
8.3.00.0000.00822.09
8.2.180.0100.00717.13
8.2.170.0070.00722.96
8.2.160.0140.00019.28
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0000.00821.10
8.2.120.0000.00826.35
8.2.110.0070.00322.39
8.2.100.0040.00917.97
8.2.90.0000.00819.03
8.2.80.0080.00018.04
8.2.70.0000.01017.50
8.2.60.0000.00818.05
8.2.50.0050.00318.10
8.2.40.0050.00320.43
8.2.30.0000.00821.06
8.2.20.0030.00718.08
8.2.10.0000.00718.16
8.2.00.0070.00018.08
8.1.280.0130.01025.92
8.1.270.0040.00422.18
8.1.260.0000.00726.35
8.1.250.0070.00028.09
8.1.240.0070.00421.18
8.1.230.0070.00419.19
8.1.220.0030.00517.74
8.1.210.0040.00418.77
8.1.200.0030.00617.36
8.1.190.0040.00417.35
8.1.180.0050.00318.10
8.1.170.0000.00719.02
8.1.160.0040.00418.91
8.1.150.0040.00420.63
8.1.140.0040.00419.54
8.1.130.0030.00318.89
8.1.120.0030.00317.63
8.1.110.0070.00017.48
8.1.100.0000.00817.59
8.1.90.0030.00517.44
8.1.80.0070.00017.54
8.1.70.0000.00717.46
8.1.60.0060.00317.61
8.1.50.0080.00017.53
8.1.40.0080.00017.61
8.1.30.0040.00417.63
8.1.20.0040.00417.71
8.1.10.0040.00417.70
8.1.00.0000.00717.48
8.0.300.0050.00319.92
8.0.290.0070.00016.88
8.0.280.0000.00718.47
8.0.270.0000.00717.18
8.0.260.0050.00316.88
8.0.250.0030.00317.13
8.0.240.0040.00417.22
8.0.230.0000.00717.21
8.0.220.0030.00317.07
8.0.210.0070.00017.12
8.0.200.0000.00717.20
8.0.190.0050.00517.21
8.0.180.0040.00417.05
8.0.170.0070.00017.16
8.0.160.0000.00817.01
8.0.150.0050.00317.05
8.0.140.0070.00016.98
8.0.130.0060.00013.48
8.0.120.0000.00717.06
8.0.110.0000.00717.07
8.0.100.0040.00417.16
8.0.90.0000.00717.01
8.0.80.0060.00917.09
8.0.70.0090.00016.91
8.0.60.0000.00816.96
8.0.50.0030.00617.16
8.0.30.0120.00817.15
8.0.20.0050.01317.40
8.0.10.0070.00017.10
8.0.00.0070.01017.11
7.4.330.0060.00015.55
7.4.320.0000.00616.65
7.4.300.0000.00616.67
7.4.290.0030.00316.62
7.4.280.0060.00316.53
7.4.270.0000.00716.59
7.4.260.0000.00716.64
7.4.250.0030.00316.57
7.4.240.0000.00716.66
7.4.230.0030.00316.55
7.4.220.0030.01716.71
7.4.210.0070.01116.62
7.4.200.0070.00016.65
7.4.160.0120.00716.69
7.4.150.0140.00317.40
7.4.140.0090.00917.86
7.4.130.0160.00916.80
7.4.120.0090.01016.61
7.4.110.0070.01316.67
7.4.100.0070.01116.48
7.4.90.0100.00716.64
7.4.80.0120.00619.39
7.4.70.0080.00816.60
7.4.60.0000.01616.61
7.4.50.0130.00316.63
7.4.40.0090.00816.74
7.4.30.0120.00616.73
7.4.00.0070.00715.07
7.3.330.0050.00013.31
7.3.320.0000.00513.33
7.3.310.0050.00316.56
7.3.300.0000.00716.41
7.3.290.0080.00716.40
7.3.280.0080.00816.39
7.3.270.0090.00817.40
7.3.260.0110.00716.54
7.3.250.0150.01016.51
7.3.240.0070.01016.41
7.3.230.0110.00716.62
7.3.210.0060.01016.43
7.3.200.0120.00916.35
7.3.190.0100.00716.45
7.3.180.0130.00716.69
7.3.170.0140.00216.43
7.3.160.0120.00316.45
7.2.330.0100.01016.59
7.2.320.0090.00916.81
7.2.310.0060.01016.79
7.2.300.0060.01516.69
7.2.290.0060.01016.76
7.2.60.0000.01616.82
7.2.00.0000.01119.61
7.1.200.0050.01015.83
7.1.100.0030.01018.18
7.1.70.0000.01417.49
7.1.60.0160.01335.36
7.1.50.0290.01134.86
7.1.40.0300.01734.55
7.1.30.0290.01234.76
7.1.20.0570.01733.10
7.1.10.0350.01616.77
7.1.00.0110.00616.66
7.0.200.0050.01517.04
7.0.190.0340.01516.81
7.0.180.0060.01216.35
7.0.170.0130.00716.38
7.0.160.0380.01114.52
7.0.150.0070.01416.33
7.0.140.0110.00516.57
7.0.130.0410.00714.90
7.0.120.0100.01016.88
7.0.110.0050.01316.62
7.0.100.0070.01016.64
7.0.90.0030.01616.66
7.0.80.0140.00616.59
7.0.70.0070.01316.52
7.0.60.0100.01016.30
7.0.50.0000.02016.60
7.0.40.0000.01616.54
7.0.30.0090.00916.89
7.0.20.0040.01816.55
7.0.10.0100.00816.66
7.0.00.0200.00416.63

preferences:
40.33 ms | 401 KiB | 5 Q