3v4l.org

run code in 500+ PHP versions simultaneously
<?php $re = '/(\{([GUW])})\1*|./'; $str = '{1}{G}{G}{U}{U}{W}'; $result = preg_replace($re, '$2', $str); echo $result;

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)
8.5.70.0110.00818.59
8.5.60.0100.00817.05
8.5.50.0120.00718.52
8.5.30.0030.00619.16
8.5.20.0050.00219.46
8.5.10.0120.00820.11
8.5.00.0110.00924.56
8.4.210.0140.00719.71
8.4.180.0150.00619.68
8.4.170.0120.00920.45
8.4.160.0160.00821.62
8.4.150.0080.00416.96
8.4.140.0160.00517.70
8.4.130.0100.01119.67
8.4.120.0090.01025.79
8.4.110.0090.01222.25
8.4.100.0140.00318.48
8.4.90.0130.00819.02
8.4.80.0150.00520.68
8.4.70.0090.00718.96
8.4.60.0120.00918.88
8.4.50.0090.00720.42
8.4.40.0100.01018.65
8.4.30.0030.00620.49
8.4.20.0100.01018.09
8.4.10.0130.00321.91
8.3.300.0110.01220.82
8.3.290.0090.01320.75
8.3.280.0160.00518.41
8.3.270.0100.00816.41
8.3.260.0080.01116.44
8.3.250.0120.00618.69
8.3.240.0090.00917.13
8.3.230.0100.00716.62
8.3.220.0070.00918.80
8.3.210.0080.01018.70
8.3.200.0080.00616.49
8.3.190.0110.00916.93
8.3.180.0100.00916.59
8.3.170.0060.00317.30
8.3.160.0110.00718.27
8.3.150.0040.01116.79
8.3.140.0110.00417.03
8.3.130.0060.00318.32
8.3.120.0030.00618.73
8.3.110.0050.00520.94
8.3.100.0080.00024.06
8.3.90.0070.00726.77
8.3.80.0070.00416.75
8.3.70.0030.01016.63
8.3.60.0120.00618.43
8.3.50.0060.00919.98
8.3.40.0040.01120.17
8.3.30.0110.00318.93
8.3.20.0040.00424.18
8.3.10.0030.00524.66
8.3.00.0060.00326.16
8.2.300.0120.00822.11
8.2.290.0120.00720.57
8.2.280.0140.00718.74
8.2.270.0090.00017.13
8.2.260.0080.00018.69
8.2.250.0040.00418.45
8.2.240.0120.00817.20
8.2.230.0060.00322.58
8.2.220.0060.00937.54
8.2.210.0110.00426.77
8.2.200.0000.00816.63
8.2.190.0040.01116.58
8.2.180.0070.00725.92
8.2.170.0090.00619.09
8.2.160.0080.00622.96
8.2.150.0050.00225.66
8.2.140.0080.00024.66
8.2.130.0030.00526.16
8.2.120.0070.00020.47
8.2.110.0060.00319.27
8.2.100.0130.00017.84
8.2.90.0040.00417.73
8.2.80.0040.00419.04
8.2.70.0050.00317.38
8.2.60.0050.00317.75
8.2.50.0040.00418.05
8.2.40.0040.00418.22
8.2.30.0040.00418.08
8.2.20.0050.00221.06
8.2.10.0000.00718.19
8.2.00.0000.00719.27
8.1.340.0120.00917.70
8.1.330.0160.00421.92
8.1.320.0100.01116.27
8.1.310.0070.00718.50
8.1.300.0000.00919.66
8.1.290.0060.00318.88
8.1.280.0090.00625.92
8.1.270.0040.00424.66
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0040.00419.13
8.1.230.0040.00719.01
8.1.220.0040.00417.79
8.1.210.0030.00518.77
8.1.200.0050.00317.48
8.1.190.0000.00817.35
8.1.180.0060.00618.10
8.1.170.0040.00417.62
8.1.160.0070.00018.86
8.1.150.0000.00718.75
8.1.140.0040.00417.51
8.1.130.0000.00719.05
8.1.120.0000.00717.38
8.1.110.0000.00717.54
8.1.100.0050.00217.52
8.1.90.0050.00517.41
8.1.80.0130.00317.50
8.1.70.0120.00317.45
8.1.60.0140.00317.58
8.1.50.0090.00417.50
8.1.40.0130.00417.47
8.1.30.0100.00717.67
8.1.20.0110.00617.69
8.1.10.0160.00317.62
8.1.00.0170.00017.49
8.0.300.0070.00018.77
8.0.290.0060.00316.75
8.0.280.0070.00018.37
8.0.270.0070.00016.86
8.0.260.0040.00418.50
8.0.250.0040.00417.14
8.0.240.0040.00416.98
8.0.230.0000.00816.97
8.0.220.0110.00316.84
8.0.210.0070.00716.87
8.0.200.0130.00016.90
8.0.190.0080.00316.88
8.0.180.0100.00016.87
8.0.170.0080.00316.89
8.0.160.0100.00516.96
8.0.150.0080.00416.78
8.0.140.0100.00016.89
8.0.130.0080.00416.88
8.0.120.0080.00516.90
8.0.110.0120.00216.95
8.0.100.0100.00516.79
8.0.90.0120.00416.82
8.0.80.0070.00316.89
8.0.70.0040.00416.93
8.0.60.0080.00416.80
8.0.50.0100.00316.88
8.0.30.0000.01316.87
8.0.20.0000.00817.00
8.0.10.0000.00917.03
7.4.330.0000.00515.55
7.4.320.0030.00316.79
7.4.300.0110.00316.76
7.4.290.0050.01116.65
7.4.280.0080.00816.60
7.4.270.0150.00316.65
7.4.260.0110.00616.77
7.4.250.0180.00016.61
7.4.240.0050.01116.66
7.4.230.0040.00816.64
7.4.220.0130.00016.69
7.4.210.0050.00816.64
7.4.200.0080.00416.70
7.4.190.0090.00516.82
7.4.180.0070.00716.80
7.4.160.0100.00316.75
7.4.150.0070.00716.73
7.4.140.0000.01316.64
7.4.130.0050.00816.77
7.4.120.0050.00716.71
7.4.110.0060.00616.55
7.4.100.0130.00016.79
7.4.90.0060.00816.62
7.4.80.0070.00716.53
7.4.70.0090.00516.61
7.4.60.0070.00716.55
7.4.50.0140.00016.46
7.4.40.0100.00216.56
7.4.30.0080.00516.49
7.4.20.0140.00016.48
7.4.10.0100.00216.45
7.4.00.0070.00416.64

preferences:
93.77 ms | 1247 KiB | 5 Q