3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'abc<abc>abc>'; $str = preg_replace_callback('/(<)[^>]++>|.++/', function ($m) { return str_replace('a', isset($m[1]) ? 'b' : 'c', $m[0]); }, $str); echo $str;

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)
8.3.40.0060.00919.04
8.3.30.0120.00318.83
8.3.20.0000.00818.85
8.3.10.0060.00321.05
8.3.00.0040.00423.66
8.2.170.0120.00322.96
8.2.160.0100.00322.31
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0110.00326.16
8.2.120.0030.00619.70
8.2.110.0080.00320.46
8.2.100.0080.00317.84
8.2.90.0030.00619.31
8.2.80.0000.00717.97
8.2.70.0050.00317.88
8.2.60.0060.00317.93
8.2.50.0000.00818.07
8.2.40.0040.00418.28
8.2.30.0030.00519.82
8.2.20.0040.00417.79
8.2.10.0070.00017.98
8.2.00.0060.00317.77
8.1.270.0030.00623.99
8.1.260.0030.00626.35
8.1.250.0030.00628.09
8.1.240.0040.00820.77
8.1.230.0050.00620.94
8.1.220.0050.00318.77
8.1.210.0050.00318.98
8.1.200.0000.01017.61
8.1.190.0050.00319.41
8.1.180.0040.00418.10
8.1.170.0050.00318.57
8.1.160.0050.00218.82
8.1.150.0040.00418.84
8.1.140.0030.00517.66
8.1.130.0070.00017.80
8.1.120.0000.00717.66
8.1.110.0050.00217.63
8.1.100.0040.00417.58
8.1.90.0030.00517.65
8.1.80.0030.00317.62
8.1.70.0070.00017.56
8.1.60.0040.00417.70
8.1.50.0040.00417.66
8.1.40.0080.00017.72
8.1.30.0000.00917.82
8.1.20.0040.00417.77
8.1.10.0040.00417.62
8.1.00.0000.00817.63
8.0.300.0040.00420.04
8.0.290.0040.00417.05
8.0.280.0080.00018.37
8.0.270.0000.00717.27
8.0.260.0060.00016.93
8.0.250.0040.00417.12
8.0.240.0030.00617.03
8.0.230.0030.00617.01
8.0.220.0030.00316.80
8.0.210.0050.00216.93
8.0.200.0030.00317.11
8.0.190.0040.00417.05
8.0.180.0000.00716.96
8.0.170.0000.00717.04
8.0.160.0030.00317.05
8.0.150.0090.00016.96
8.0.140.0050.00216.93
8.0.130.0000.00613.43
8.0.120.0060.00317.03
8.0.110.0030.00516.83
8.0.100.0050.00316.90
8.0.90.0000.00816.82
8.0.80.0150.00616.98
8.0.70.0000.00717.15
8.0.60.0000.00716.89
8.0.50.0000.00817.04
8.0.30.0120.01017.23
8.0.20.0120.00617.40
8.0.10.0040.00417.03
8.0.00.0130.00916.87
7.4.330.0000.00514.86
7.4.320.0000.00816.82
7.4.300.0030.00316.85
7.4.290.0070.00016.74
7.4.280.0050.00216.78
7.4.270.0070.00016.71
7.4.260.0060.00013.42
7.4.250.0050.00316.77
7.4.240.0000.00716.70
7.4.230.0070.00016.83
7.4.220.0070.01016.68
7.4.210.0070.00816.76
7.4.200.0030.00516.80
7.4.190.0070.00016.68
7.4.160.0140.00316.62
7.4.150.0100.00717.40
7.4.140.0100.00817.86
7.4.130.0120.00816.89
7.4.120.0100.00716.64
7.4.110.0120.01216.68
7.4.100.0100.01116.78
7.4.90.0090.01216.64
7.4.80.0120.00619.37
7.4.70.0030.01316.55
7.4.60.0080.00916.60
7.4.50.0030.00316.57
7.4.40.0060.00622.27
7.4.30.0100.01016.68
7.4.00.0070.00315.07
7.3.330.0000.00613.47
7.3.320.0060.00013.52
7.3.310.0080.00016.57
7.3.300.0000.00716.39
7.3.290.0140.00016.37
7.3.280.0090.00816.44
7.3.270.0070.01117.40
7.3.260.0080.00818.24
7.3.250.0080.01216.64
7.3.240.0070.01116.62
7.3.230.0110.00516.58
7.3.210.0150.01116.63
7.3.200.0110.00619.39
7.3.190.0040.01616.69
7.3.180.0120.00316.78
7.3.170.0070.01016.41
7.3.160.0140.00316.48
7.3.120.0040.01215.09
7.2.330.0070.01116.91
7.2.320.0140.00816.78
7.2.310.0080.01116.82
7.2.300.0100.00816.84
7.2.290.0070.01016.67
7.2.00.0040.01119.50
7.1.100.0030.00918.44
7.1.70.0060.00616.95
7.1.60.0000.01119.40
7.1.50.0080.00417.16
7.1.00.0030.06322.55
7.0.200.0050.00216.95
7.0.140.0000.07721.99
7.0.60.0030.06720.02
7.0.50.0100.07317.89
7.0.40.0130.04320.25
7.0.30.0270.07720.22
7.0.20.0300.07320.13
7.0.10.0100.05320.09
7.0.00.0130.05020.23
5.6.280.0030.07321.04
5.6.210.0030.06020.57
5.6.200.0100.04018.20
5.6.190.0070.04020.52
5.6.180.0200.06020.64
5.6.170.0130.05020.44
5.6.160.0070.08020.56
5.6.150.0100.03318.16
5.6.140.0070.06718.24
5.6.130.0030.06018.28
5.6.120.0070.05320.99
5.6.110.0130.08320.97
5.6.100.0030.06321.01
5.6.90.0170.07720.96
5.6.80.0030.06720.41
5.6.70.0330.06020.39
5.5.350.0270.07720.50
5.5.340.0000.04317.99
5.5.330.0000.06020.19
5.5.320.0130.04020.19
5.5.310.0170.04020.28
5.5.300.0030.08317.98
5.5.290.0100.08718.02
5.5.280.0130.05020.81
5.5.270.0100.06320.68
5.5.260.0070.08320.64
5.5.250.0070.08320.59
5.5.240.0030.08020.26
5.4.450.0270.07719.46
5.4.440.0230.04719.47
5.4.430.0230.07319.31
5.4.420.0230.07719.41
5.4.410.0200.06319.42
5.4.400.0170.04719.16
5.4.390.0130.04019.20
5.4.380.0200.03719.15
5.4.370.0100.04019.09
5.4.360.0170.03319.22
5.4.350.0100.04319.15
5.4.340.0170.03319.15
5.4.320.0170.03319.20
5.4.310.0200.03019.15
5.4.300.0100.04019.19
5.4.290.0130.03719.22
5.4.280.0170.03319.22
5.4.270.0100.04018.85
5.4.260.0130.03718.85
5.4.250.0300.02718.86
5.4.240.0130.03718.88
5.4.230.0100.04019.21
5.4.220.0200.03719.13
5.4.210.0170.03319.13
5.4.200.0130.03719.21
5.4.190.0170.03318.97
5.4.180.0200.07319.07
5.4.170.0200.07019.20
5.4.160.0170.05719.13
5.4.150.0230.06718.95
5.4.140.0230.05716.36
5.4.130.0200.07016.31
5.4.120.0230.06016.36
5.4.110.0270.04716.55
5.4.100.0300.05716.54
5.4.90.0230.07016.51
5.4.80.0200.06716.26
5.4.70.0270.07016.54
5.4.60.0270.06316.43
5.4.50.0270.05316.55
5.4.40.0200.04716.38
5.4.30.0170.03716.53
5.4.20.0130.06016.23
5.4.10.0300.05016.55
5.4.00.0170.06315.96
5.3.290.0070.04314.69
5.3.280.0230.03014.57
5.3.270.0200.04714.71
5.3.260.0270.07314.57
5.3.250.0300.07314.52
5.3.240.0230.05714.52
5.3.230.0270.06714.57
5.3.220.0230.05014.56
5.3.210.0330.05014.52
5.3.200.0200.07714.46
5.3.190.0200.07714.71
5.3.180.0070.06314.60
5.3.170.0330.04314.56
5.3.160.0200.07714.53
5.3.150.0300.06314.46
5.3.140.0200.04314.46
5.3.130.0200.05314.56
5.3.120.0170.06014.65
5.3.110.0230.04014.46
5.3.100.0270.03713.95
5.3.90.0230.06314.07
5.3.80.0230.04313.94
5.3.70.0300.04714.02
5.3.60.0270.06713.90
5.3.50.0170.08013.95
5.3.40.0270.05014.17
5.3.30.0200.05713.81
5.3.20.0270.06713.69
5.3.10.0200.05013.70
5.3.00.0230.07313.65
5.2.170.0230.05712.54
5.2.160.0170.05312.54
5.2.150.0270.06712.54
5.2.140.0200.04012.54
5.2.130.0200.04312.54
5.2.120.0130.05312.54
5.2.110.0230.04312.54
5.2.100.0170.05312.54
5.2.90.0200.03312.54
5.2.80.0230.05712.54
5.2.70.0200.05012.54
5.2.60.0230.05712.54
5.2.50.0300.04712.54
5.2.40.0130.06012.54
5.2.30.0170.05712.54
5.2.20.0270.04312.54
5.2.10.0200.06012.54
5.2.00.0200.04312.54
5.1.60.0230.04312.54
5.1.50.0170.03312.54
5.1.40.0170.03312.54
5.1.30.0130.03312.54
5.1.20.0170.05312.54
5.1.10.0170.04312.54
5.1.00.0170.03712.54
5.0.50.0070.04312.54
5.0.40.0030.04012.54
5.0.30.0070.06312.54
5.0.20.0100.03312.54
5.0.10.0070.03012.54
5.0.00.0070.06712.54
4.4.90.0070.02012.54
4.4.80.0100.03012.54
4.4.70.0070.03312.54
4.4.60.0070.02712.54
4.4.50.0130.02712.54
4.4.40.0070.05312.54
4.4.30.0100.03712.54
4.4.20.0070.03712.54
4.4.10.0030.02012.54
4.4.00.0070.04712.54
4.3.110.0070.03712.54
4.3.100.0070.03312.54
4.3.90.0070.02712.54
4.3.80.0030.03012.54
4.3.70.0070.03712.54
4.3.60.0100.03012.54
4.3.50.0070.04012.54
4.3.40.0100.04712.54
4.3.30.0070.02312.54
4.3.20.0030.02712.54
4.3.10.0030.02012.54
4.3.00.0000.03712.54

preferences:
40.03 ms | 400 KiB | 5 Q