3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo preg_replace('`[^{}]*\K{[^{}]*}[^{}]*`', '<$0>', 'test {a} {b{c}d}e{{f}{g}}');

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)
8.3.60.0170.00318.23
8.3.50.0080.00621.14
8.3.40.0070.00718.79
8.3.30.0150.00018.91
8.3.20.0000.00720.25
8.3.10.0040.00422.09
8.3.00.0050.00222.34
8.2.180.0130.00618.26
8.2.170.0100.00322.96
8.2.160.0070.00720.52
8.2.150.0030.00624.18
8.2.140.0030.00524.66
8.2.130.0140.00326.16
8.2.120.0000.01019.55
8.2.110.0050.00520.30
8.2.100.0070.00419.34
8.2.90.0040.00419.16
8.2.80.0000.00817.97
8.2.70.0040.00417.75
8.2.60.0080.00017.80
8.2.50.0000.00918.07
8.2.40.0050.00318.16
8.2.30.0000.00718.07
8.2.20.0080.00017.65
8.2.10.0060.00317.62
8.2.00.0000.00917.70
8.1.280.0140.00725.92
8.1.270.0060.00320.48
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0060.00324.04
8.1.230.0080.00318.96
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0040.00417.38
8.1.180.0040.00418.53
8.1.170.0000.00818.70
8.1.160.0000.00722.23
8.1.150.0040.00418.57
8.1.140.0000.00717.37
8.1.130.0000.00717.73
8.1.120.0000.00717.38
8.1.110.0000.00817.36
8.1.100.0000.00717.42
8.1.90.0000.00717.47
8.1.80.0020.00517.37
8.1.70.0070.00017.44
8.1.60.0090.00017.62
8.1.50.0040.00417.48
8.1.40.0030.00517.58
8.1.30.0000.00817.62
8.1.20.0050.00317.66
8.1.10.0030.00517.59
8.1.00.0040.00417.50
8.0.300.0000.00718.77
8.0.290.0030.00517.15
8.0.280.0060.00018.35
8.0.270.0000.00817.12
8.0.260.0030.00316.89
8.0.250.0050.00317.07
8.0.240.0000.00816.92
8.0.230.0000.00716.99
8.0.220.0040.00416.93
8.0.210.0070.00016.84
8.0.200.0000.00616.86
8.0.190.0040.00416.96
8.0.180.0000.00716.95
8.0.170.0050.00216.95
8.0.160.0040.00416.89
8.0.150.0030.00316.88
8.0.140.0030.00516.92
8.0.130.0060.00013.31
8.0.120.0080.00016.75
8.0.110.0040.00416.91
8.0.100.0000.00716.73
8.0.90.0040.00416.85
8.0.80.0080.00816.80
8.0.70.0000.00716.80
8.0.60.0050.00216.79
8.0.50.0050.00216.85
8.0.30.0080.01117.04
8.0.20.0100.01017.40
8.0.10.0000.00717.00
8.0.00.0070.01016.77
7.4.330.0030.00315.00
7.4.320.0050.00216.66
7.4.300.0060.00016.55
7.4.290.0000.00716.62
7.4.280.0030.00316.71
7.4.270.0030.00416.48
7.4.260.0000.00716.51
7.4.250.0040.00416.55
7.4.240.0050.00216.63
7.4.230.0000.00716.58
7.4.220.0090.00916.52
7.4.210.0100.00516.60
7.4.200.0000.00716.77
7.4.190.0040.00416.48
7.4.160.0000.01616.68
7.4.150.0160.00317.40
7.4.140.0120.00617.86
7.4.130.0070.01016.57
7.4.120.0100.00616.57
7.4.110.0080.00816.55
7.4.100.0060.01216.53
7.4.90.0070.01016.64
7.4.80.0100.00719.39
7.4.70.0130.00316.35
7.4.60.0100.00716.64
7.4.50.0020.00216.57
7.4.40.0090.00622.77
7.4.30.0110.00716.61
7.4.00.0070.00715.08
7.3.330.0000.00513.12
7.3.320.0000.00613.06
7.3.310.0070.00016.25
7.3.300.0000.00716.26
7.3.290.0100.00916.33
7.3.280.0100.00416.28
7.3.270.0160.00317.40
7.3.260.0130.00316.42
7.3.250.0080.01016.42
7.3.240.0130.00316.24
7.3.230.0090.00916.73
7.3.210.0110.00916.15
7.3.200.0060.01019.39
7.3.190.0150.00616.39
7.3.180.0110.00416.23
7.3.170.0060.01216.68
7.3.160.0060.01016.62
7.3.120.0030.01314.95
7.2.330.0150.00916.58
7.2.320.0110.00816.75
7.2.310.0140.00616.61
7.2.300.0120.00416.47
7.2.290.0090.00916.84
7.2.80.0110.00316.77
7.2.60.0100.00317.07
7.1.200.0040.01216.02
7.1.100.0040.00818.41
7.1.70.0060.00917.07
7.1.60.0060.01619.82
7.1.50.0130.00916.96
7.1.00.0070.03022.59
7.0.200.0000.00816.93
7.0.140.0030.07022.09
7.0.60.0070.08719.91
7.0.50.0030.08317.90
7.0.40.0070.05019.98
7.0.30.0170.05720.11
7.0.20.0230.04320.11
7.0.10.0230.05320.19
7.0.00.0030.05020.21
5.6.280.0130.06320.90
5.6.210.0070.07320.46
5.6.200.0100.08318.28
5.6.190.0070.06020.35
5.6.180.3670.03320.46
5.6.170.0130.05320.46
5.6.160.0070.07020.40
5.6.150.0100.04318.18
5.6.140.0070.04018.20
5.6.130.0070.03718.21
5.6.120.0030.04321.11
5.6.110.0130.07021.14
5.6.100.0000.04320.99
5.6.90.0070.04020.96
5.6.80.0070.08020.52
5.6.70.0230.07020.38
5.5.350.0170.08020.40
5.5.340.0030.05718.02
5.5.330.0070.08720.07
5.5.320.0170.08020.21
5.5.310.0230.06020.24
5.5.300.0070.08017.92
5.5.290.0070.08017.90
5.5.280.0000.08020.79
5.5.270.0130.07720.83
5.5.260.0070.05020.75
5.5.250.0070.08320.60
5.5.240.0100.07020.06
5.4.450.0730.08019.45
5.4.440.0800.04319.56
5.4.430.0730.07319.27
5.4.420.0030.06019.15
5.4.410.0730.05318.97
5.4.400.0370.06018.50
5.4.390.0400.08018.74
5.4.380.0170.06318.70
5.4.370.0100.05318.46
5.4.360.0200.04318.60
5.4.350.0160.04011.97
5.4.340.0160.04111.96
5.4.320.0090.04412.45
5.4.310.0070.04912.45
5.4.300.0130.04312.45
5.4.290.0080.04612.45
5.4.280.0080.03512.35
5.4.270.0060.04412.35
5.4.260.0120.03812.34
5.4.250.0100.04718.87
5.4.240.0100.05018.67
5.4.230.0070.05318.82
5.4.220.0070.07018.75
5.4.210.0100.04719.02
5.4.200.0030.05318.67
5.4.190.0070.05318.66
5.4.180.0170.04019.00
5.4.170.0130.04718.81
5.4.160.0070.05018.96
5.4.150.0030.05718.98
5.4.140.0030.05316.26
5.4.130.0130.04016.46
5.4.120.0100.06316.29
5.4.110.0100.05016.29
5.4.100.0100.04316.14
5.4.90.0100.05716.27
5.4.80.0130.04316.32
5.4.70.0100.06316.31
5.4.60.0130.04016.36
5.4.50.0170.04316.30
5.4.40.0070.05016.30
5.4.30.0100.04716.24
5.4.20.0100.04716.45
5.4.10.0070.05016.24
5.4.00.0070.04715.71
5.3.290.0070.05012.80
5.3.280.0170.05014.58
5.3.270.0170.04314.64
5.3.260.0070.05314.61
5.3.250.0130.04314.30
5.3.240.0070.05014.47
5.3.230.0070.05314.60
5.3.220.0100.04714.48
5.3.210.0100.06014.48
5.3.200.0100.07014.57
5.3.190.0130.04314.42
5.3.180.0100.05014.40
5.3.170.0100.04714.55
5.3.160.0130.04314.60
5.3.150.0070.05014.46
5.3.140.0070.05014.56
5.3.130.0130.06314.63
5.3.120.0100.06014.59
5.3.110.0030.07714.43
5.3.100.0000.05713.95
5.3.90.0100.04314.03
5.3.80.0070.05014.03
5.3.70.0030.05314.02
5.3.60.0130.05013.88
5.3.50.0070.05013.88
5.3.40.0030.05013.92
5.3.30.0170.03713.67
5.3.20.0100.04313.38
5.3.10.0070.04313.52
5.3.00.0100.04713.48
5.2.170.0130.04011.06
5.2.160.0070.04011.13
5.2.150.0100.03710.90
5.2.140.0130.03011.23
5.2.130.0230.03311.25
5.2.120.0070.03711.10
5.2.110.0100.03311.10
5.2.100.0130.03311.24
5.2.90.0130.03011.01
5.2.80.0030.04310.97
5.2.70.0070.04011.00
5.2.60.0030.04310.96
5.2.50.0170.03010.90
5.2.40.0130.03010.92
5.2.30.0030.04010.97
5.2.20.0070.03710.96
5.2.10.0070.04010.91
5.2.00.0100.03310.92
5.1.60.0000.0379.88
5.1.50.0030.0339.91
5.1.40.0030.03310.20
5.1.30.0000.04310.41
5.1.20.0030.03710.27
5.1.10.0170.03310.20
5.1.00.0070.04310.02
5.0.50.0030.0278.69
5.0.40.0030.0278.55
5.0.30.0070.0438.40
5.0.20.0070.0338.16
5.0.10.0070.0238.15
5.0.00.0070.0378.24
4.4.90.0000.0276.95
4.4.80.0000.0276.95
4.4.70.0030.0276.95
4.4.60.0000.0236.95
4.4.50.0070.0276.95
4.4.40.0000.0376.95
4.4.30.0000.0306.95
4.4.20.0000.0276.95
4.4.10.0030.0276.95
4.4.00.0030.0336.95
4.3.110.0030.0206.95
4.3.100.0000.0236.95
4.3.90.0000.0236.95
4.3.80.0030.0336.95
4.3.70.0000.0206.95
4.3.60.0070.0236.95
4.3.50.0070.0176.95
4.3.40.0030.0306.95
4.3.30.0030.0206.95
4.3.20.0000.0236.95
4.3.10.0030.0206.95
4.3.00.0000.0236.48

preferences:
41.85 ms | 401 KiB | 5 Q