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)
8.3.60.0180.00318.31
8.3.50.0100.00521.15
8.3.40.0130.00318.80
8.3.30.0060.01018.92
8.3.20.0040.00420.29
8.3.10.0050.00322.09
8.3.00.0080.00022.52
8.2.180.0110.00718.30
8.2.170.0070.01122.96
8.2.160.0030.01120.40
8.2.150.0080.00024.18
8.2.140.0070.01324.66
8.2.130.0030.00526.16
8.2.120.0040.00419.66
8.2.110.0060.00320.24
8.2.100.0070.00419.35
8.2.90.0000.00719.28
8.2.80.0000.00817.97
8.2.70.0030.00617.63
8.2.60.0000.00817.90
8.2.50.0030.00618.07
8.2.40.0040.00417.91
8.2.30.0040.00417.92
8.2.20.0070.00017.68
8.2.10.0000.00717.63
8.2.00.0030.00617.60
8.1.280.0100.01025.92
8.1.270.0100.00020.41
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0090.00023.91
8.1.230.0080.00319.07
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0060.00317.23
8.1.190.0000.00817.30
8.1.180.0080.00018.62
8.1.170.0050.00318.69
8.1.160.0040.00422.02
8.1.150.0040.00418.68
8.1.140.0080.00017.39
8.1.130.0000.00717.77
8.1.120.0000.00717.47
8.1.110.0070.00017.36
8.1.100.0000.00817.51
8.1.90.0000.00717.54
8.1.80.0000.00717.49
8.1.70.0030.00317.39
8.1.60.0040.00717.65
8.1.50.0030.00517.42
8.1.40.0080.00017.42
8.1.30.0030.00517.64
8.1.20.0050.00317.57
8.1.10.0040.00417.64
8.1.00.0000.00717.53
8.0.300.0000.00718.77
8.0.290.0070.00017.05
8.0.280.0030.00318.29
8.0.270.0030.00317.20
8.0.260.0030.00316.80
8.0.250.0080.00016.99
8.0.240.0080.00017.03
8.0.230.0000.00716.94
8.0.220.0040.00416.92
8.0.210.0000.00816.79
8.0.200.0000.00616.97
8.0.190.0070.00016.96
8.0.180.0030.00316.82
8.0.170.0000.00716.88
8.0.160.0080.00016.89
8.0.150.0070.00016.83
8.0.140.0040.00416.81
8.0.130.0030.00313.34
8.0.120.0030.00716.85
8.0.110.0040.00416.81
8.0.100.0030.00516.92
8.0.90.0040.00416.84
8.0.80.0030.01316.82
8.0.70.0070.00016.85
8.0.60.0070.00016.84
8.0.50.0040.00416.84
8.0.30.0080.01217.21
8.0.20.0090.00917.40
8.0.10.0080.00017.02
8.0.00.0080.00816.68
7.4.330.0000.00515.00
7.4.320.0040.00416.66
7.4.300.0000.00716.65
7.4.290.0040.00416.68
7.4.280.0040.00416.58
7.4.270.0000.00716.66
7.4.260.0000.00716.66
7.4.250.0000.00716.50
7.4.240.0040.00416.67
7.4.230.0070.00016.61
7.4.220.0120.00616.63
7.4.210.0080.00816.66
7.4.200.0030.00316.76
7.4.190.0030.00316.72
7.4.160.0030.01416.58
7.4.150.0130.01317.40
7.4.140.0120.00717.86
7.4.130.0100.00716.50
7.4.120.0120.00516.69
7.4.110.0100.00716.34
7.4.100.0150.00616.61
7.4.90.0000.01616.47
7.4.80.0160.00319.39
7.4.70.0080.00816.48
7.4.60.0100.00616.68
7.4.50.0030.00316.43
7.4.40.0000.01322.77
7.4.30.0100.00716.70
7.4.00.0080.00814.92
7.3.330.0000.00613.11
7.3.320.0000.00713.16
7.3.310.0030.00316.14
7.3.300.0070.00016.32
7.3.290.0070.00616.17
7.3.280.0040.01216.29
7.3.270.0070.01017.40
7.3.260.0100.00716.23
7.3.250.0110.00616.56
7.3.240.0000.02116.36
7.3.230.0170.00816.53
7.3.210.0060.01316.29
7.3.200.0030.01319.39
7.3.190.0100.01116.29
7.3.180.0060.00916.33
7.3.170.0090.00916.58
7.3.160.0070.01016.38
7.3.120.0100.00714.86
7.2.330.0100.00716.61
7.2.320.0160.00316.53
7.2.310.0200.00016.49
7.2.300.0100.00616.55
7.2.290.0110.00516.62
7.2.00.0000.01319.56
7.1.100.0040.00718.43
7.1.70.0000.00917.07
7.1.60.0100.01419.82
7.1.50.0040.01816.93
7.1.00.0070.04322.52
7.0.200.0030.00616.80
7.0.140.0070.07322.09
7.0.60.0230.07719.85
7.0.50.0070.07017.90
7.0.40.0170.07720.08
7.0.30.0230.07320.32
7.0.20.0300.08320.18
7.0.10.0170.04720.21
7.0.00.0030.08020.10
5.6.280.0000.07721.04
5.6.210.0070.07720.74
5.6.200.0070.06018.13
5.6.190.0070.08720.79
5.6.180.3200.04020.64
5.6.170.0130.04320.61
5.6.160.0030.08720.33
5.6.150.0070.08318.22
5.6.140.0030.07318.18
5.6.130.0000.04718.20
5.6.120.0100.07320.96
5.6.110.0170.05721.13
5.6.100.0100.03321.06
5.6.90.0000.05320.95
5.6.80.0070.07020.37
5.6.70.0130.08320.35
5.5.350.0100.08020.43
5.5.340.0100.07018.02
5.5.330.0030.09020.12
5.5.320.0170.04320.27
5.5.310.0230.07020.10
5.5.300.0070.06717.91
5.5.290.0070.08017.91
5.5.280.0030.07320.76
5.5.270.0100.08020.72
5.5.260.0130.06720.87
5.5.250.0100.07720.61
5.5.240.0070.05020.03
5.4.450.0630.06719.54
5.4.440.0600.05319.24
5.4.430.0270.06019.55
5.4.420.0630.06019.51
5.4.410.0600.04719.43
5.4.400.0130.05718.69
5.4.390.0270.06718.70
5.4.380.0230.05718.72
5.4.370.0130.05018.58
5.4.360.0070.05718.73
5.4.350.0070.04811.97
5.4.340.0060.05711.96
5.4.320.0050.03812.45
5.4.310.0090.04112.45
5.4.300.0100.03512.45
5.4.290.0110.03612.45
5.4.280.0030.03812.35
5.4.270.0090.03412.35
5.4.260.0090.04112.35
5.4.250.0200.04318.98
5.4.240.0130.04318.87
5.4.230.0100.05018.86
5.4.220.0030.05719.00
5.4.210.0070.05719.01
5.4.200.0130.04318.82
5.4.190.0070.05318.77
5.4.180.0100.04718.99
5.4.170.0030.05718.87
5.4.160.0070.05318.84
5.4.150.0030.05718.84
5.4.140.0070.07316.43
5.4.130.0070.05016.28
5.4.120.0100.04316.22
5.4.110.0070.05016.48
5.4.100.0030.05016.47
5.4.90.0130.04316.47
5.4.80.0170.06316.35
5.4.70.0130.04016.36
5.4.60.0070.05016.21
5.4.50.0070.04716.37
5.4.40.0070.05016.20
5.4.30.0130.04316.44
5.4.20.0070.04716.48
5.4.10.0130.04316.13
5.4.00.0170.04015.84
5.3.290.0020.04312.80
5.3.280.0100.04714.58
5.3.270.0070.05314.75
5.3.260.0100.05014.44
5.3.250.0000.05714.45
5.3.240.0070.05314.60
5.3.230.0030.05314.51
5.3.220.0030.05314.55
5.3.210.0070.07014.61
5.3.200.0070.05014.43
5.3.190.0070.05314.26
5.3.180.0030.07714.71
5.3.170.0130.06314.57
5.3.160.0130.04014.61
5.3.150.0030.05014.57
5.3.140.0130.04314.54
5.3.130.0170.04314.55
5.3.120.0100.05014.54
5.3.110.0130.04714.24
5.3.100.0030.05314.04
5.3.90.0070.05013.88
5.3.80.0130.06013.71
5.3.70.0070.05013.88
5.3.60.0130.04014.00
5.3.50.0000.05713.95
5.3.40.0100.04713.94
5.3.30.0070.05013.91
5.3.20.0100.04713.73
5.3.10.0170.05013.66
5.3.00.0100.05013.79
5.2.170.0070.04311.06
5.2.160.0000.04311.13
5.2.150.0000.06011.03
5.2.140.0070.04011.25
5.2.130.0000.04311.12
5.2.120.0070.05311.10
5.2.110.0000.04311.11
5.2.100.0070.05711.09
5.2.90.0000.04311.24
5.2.80.0030.04011.09
5.2.70.0000.05011.23
5.2.60.0100.04711.15
5.2.50.0100.03710.95
5.2.40.0070.03711.00
5.2.30.0030.04310.98
5.2.20.0030.04310.97
5.2.10.0100.03310.69
5.2.00.0070.04310.47
5.1.60.0000.0379.88
5.1.50.0100.04010.18
5.1.40.0070.0439.93
5.1.30.0000.05010.21
5.1.20.0030.03710.11
5.1.10.0100.0309.96
5.1.00.0030.03710.30
5.0.50.0030.0308.39
5.0.40.0030.0278.45
5.0.30.0000.0438.14
5.0.20.0070.0238.34
5.0.10.0030.0278.21
5.0.00.0030.0408.21
4.4.90.0000.0236.95
4.4.80.0030.0236.95
4.4.70.0070.0206.95
4.4.60.0000.0236.95
4.4.50.0000.0236.95
4.4.40.0000.0376.95
4.4.30.0030.0236.95
4.4.20.0000.0236.95
4.4.10.0100.0136.95
4.4.00.0000.0376.95
4.3.110.0000.0236.95
4.3.100.0000.0236.95
4.3.90.0000.0206.95
4.3.80.0070.0276.95
4.3.70.0030.0176.95
4.3.60.0000.0236.95
4.3.50.0030.0236.95
4.3.40.0030.0306.95
4.3.30.0000.0236.95
4.3.20.0000.0236.95
4.3.10.0030.0206.95
4.3.00.0070.0276.48

preferences:
64.97 ms | 401 KiB | 5 Q