3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = 'k5'; echo preg_replace('/k(\d+)/', '-${1}', $x);

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)
8.3.60.0120.00616.50
8.3.50.0070.01420.11
8.3.40.0140.00720.27
8.3.30.0120.00318.96
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0040.00426.16
8.2.180.0100.01025.92
8.2.170.0110.01119.08
8.2.160.0090.00622.96
8.2.150.0040.00425.66
8.2.140.0090.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00026.16
8.2.110.0000.00922.30
8.2.100.0040.00817.84
8.2.90.0050.00517.99
8.2.80.0040.00418.80
8.2.70.0040.00417.88
8.2.60.0030.00517.63
8.2.50.0060.00318.04
8.2.40.0050.00318.14
8.2.30.0000.00718.08
8.2.20.0040.00419.25
8.2.10.0050.00218.02
8.2.00.0020.00519.17
8.1.270.0080.00024.66
8.1.260.0020.00526.35
8.1.250.0030.00528.09
8.1.240.0070.00320.68
8.1.230.0000.01020.90
8.1.220.0030.00517.76
8.1.210.0080.00018.77
8.1.200.0040.00417.23
8.1.190.0030.00617.00
8.1.180.0040.00418.10
8.1.170.0060.00317.62
8.1.160.0040.00418.82
8.1.150.0040.00418.71
8.1.140.0040.00417.54
8.1.130.0000.00818.90
8.1.120.0000.00717.55
8.1.110.0000.00717.55
8.1.100.0070.00717.25
8.1.90.0110.00517.45
8.1.80.0150.00017.34
8.1.70.0110.00617.45
8.1.60.0130.00517.59
8.1.50.0090.00917.60
8.1.40.0140.00517.55
8.1.30.0060.01317.70
8.1.20.0140.00417.51
8.1.10.0110.00617.59
8.1.00.0080.01117.50
8.0.300.0040.00418.84
8.0.290.0000.00816.88
8.0.280.0000.00718.42
8.0.270.0070.00016.97
8.0.260.0030.00318.42
8.0.250.0030.00317.00
8.0.240.0070.00017.17
8.0.230.0000.01416.92
8.0.220.0040.01216.85
8.0.210.0090.00916.86
8.0.200.0140.00416.89
8.0.190.0000.01516.84
8.0.180.0110.00616.69
8.0.170.0120.00216.95
8.0.160.0120.00316.96
8.0.150.0120.00316.71
8.0.140.0150.00016.86
8.0.130.0100.00516.80
8.0.120.0150.00016.81
8.0.110.0130.00316.79
8.0.100.0140.00016.91
8.0.90.0080.00816.85
8.0.80.0150.00016.89
8.0.70.0060.00916.83
8.0.60.0050.01016.80
8.0.50.0090.00616.87
8.0.30.0090.00616.82
8.0.20.0100.00316.95
8.0.10.0070.00716.96
7.4.330.0000.00615.55
7.4.320.0070.00016.78
7.4.300.0110.00416.55
7.4.290.0120.00316.52
7.4.280.0140.00316.53
7.4.270.0120.00016.48
7.4.260.0110.00416.50
7.4.250.0090.00916.65
7.4.240.0110.00416.56
7.4.230.0110.00416.56
7.4.220.0160.00016.58
7.4.210.0120.00416.45
7.4.200.0080.00816.59
7.4.190.0040.01116.61
7.4.180.0110.00416.68
7.4.160.0040.01116.69
7.4.150.0100.00516.51
7.4.140.0080.00816.62
7.4.130.0080.00616.46
7.4.120.0130.00016.68
7.4.110.0110.00416.50
7.4.100.0120.00316.67
7.4.90.0070.00716.53
7.4.80.0100.00716.58
7.4.70.0070.00716.60
7.4.60.0120.00316.52
7.4.50.0110.00516.44
7.4.40.0000.01316.52
7.4.30.0110.00416.56
7.4.20.0050.01016.64
7.4.10.0100.00516.51
7.4.00.0070.00716.45

preferences:
39.59 ms | 400 KiB | 5 Q