3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "ab"; echo preg_replace("/(a)|(b)/", "+$2+|-$1-", $a);

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)
8.3.60.0120.00918.39
8.3.50.0150.00016.32
8.3.40.0070.00718.70
8.3.30.0090.00618.84
8.3.20.0000.00820.33
8.3.10.0000.01021.74
8.3.00.0080.00022.10
8.2.180.0070.00716.72
8.2.170.0070.00722.96
8.2.160.0090.00619.05
8.2.150.0060.00324.18
8.2.140.0000.00824.66
8.2.130.0000.00719.22
8.2.120.0080.00026.35
8.2.110.0050.00520.42
8.2.100.0100.00317.65
8.2.90.0030.00517.93
8.2.80.0040.00417.97
8.2.70.0070.00317.88
8.2.60.0060.00317.93
8.2.50.0040.00418.10
8.2.40.0050.00320.60
8.2.30.0070.00020.97
8.2.20.0030.00718.14
8.2.10.0030.00518.03
8.2.00.0030.00518.01
8.1.280.0140.00325.92
8.1.270.0040.00422.20
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0060.00323.87
8.1.230.0120.00023.75
8.1.220.0000.00817.79
8.1.210.0030.00518.77
8.1.200.0030.00717.35
8.1.190.0040.00417.00
8.1.180.0060.00318.10
8.1.170.0040.00418.94
8.1.160.0050.00218.91
8.1.150.0000.00720.65
8.1.140.0080.00317.60
8.1.130.0000.00718.85
8.1.120.0000.00717.51
8.1.110.0000.00717.49
8.1.100.0040.00417.45
8.1.90.0000.00817.46
8.1.80.0070.00017.44
8.1.70.0000.00717.57
8.1.60.0030.00617.68
8.1.50.0040.00417.52
8.1.40.0050.00217.48
8.1.30.0000.00717.66
8.1.20.0050.00217.76
8.1.10.0040.00417.52
8.1.00.0030.00617.59
8.0.300.0000.00720.04
8.0.290.0000.00716.88
8.0.280.0000.00718.38
8.0.270.0040.00417.28
8.0.260.0060.00016.84
8.0.250.0000.00717.04
8.0.240.0040.00417.10
8.0.230.0030.00616.91
8.0.220.0000.00716.90
8.0.210.0040.00416.99
8.0.200.0000.00716.87
8.0.190.0030.00616.95
8.0.180.0040.00417.05
8.0.170.0040.00416.99
8.0.160.0030.00317.04
8.0.150.0050.00316.92
8.0.140.0040.00416.94
8.0.130.0000.00613.42
8.0.120.0050.00316.80
8.0.110.0070.00017.09
8.0.100.0000.00716.87
8.0.90.0000.00816.95
8.0.80.0100.01017.02
8.0.70.0060.00316.92
8.0.60.0000.00817.03
8.0.50.0040.00416.80
8.0.30.0100.00917.25
8.0.20.0110.00917.40
8.0.10.0020.00517.14
8.0.00.0130.00616.93
7.4.330.0000.00515.55
7.4.320.0030.00316.73
7.4.300.0070.00016.64
7.4.290.0040.00416.75
7.4.280.0000.00716.70
7.4.270.0030.00316.75
7.4.260.0040.00416.72
7.4.250.0070.00016.75
7.4.240.0000.00716.58
7.4.230.0040.00416.62
7.4.220.0090.01316.73
7.4.210.0100.01016.70
7.4.200.0030.00316.75
7.4.160.0100.00716.64
7.4.150.0070.01017.40
7.4.140.0100.00817.86
7.4.130.0150.00916.61
7.4.120.0090.01316.73
7.4.110.0180.00616.75
7.4.100.0200.00316.67
7.4.90.0080.00816.65
7.4.80.0080.01019.39
7.4.70.0060.00916.61
7.4.60.0100.00616.41
7.4.50.0000.01916.75
7.4.40.0080.00816.47
7.4.30.0110.00516.71
7.4.00.0000.01315.05
7.3.330.0060.00013.18
7.3.320.0060.00013.11
7.3.310.0040.00416.39
7.3.300.0070.00016.18
7.3.290.0090.00816.31
7.3.280.0080.00816.29
7.3.270.0060.01117.40
7.3.260.0030.01316.23
7.3.250.0110.00916.51
7.3.240.0110.00616.51
7.3.230.0140.00416.29
7.3.210.0090.00916.70
7.3.200.0100.00616.38
7.3.190.0030.01316.33
7.3.180.0110.00916.40
7.3.170.0070.01016.55
7.3.160.0060.01116.62
7.2.330.0090.01616.80
7.2.320.0130.01016.57
7.2.310.0160.00016.69
7.2.300.0100.01016.70
7.2.290.0090.00916.75
7.2.60.0100.00616.96
7.2.00.0000.01319.52
7.1.200.0070.00715.88
7.1.100.0060.00618.10
7.1.70.0030.01317.46
7.1.60.0320.01035.20
7.1.50.0240.01835.09
7.1.40.0140.01834.46
7.1.30.0160.01634.54
7.1.20.0260.01334.81
7.1.10.0070.01116.74
7.1.00.0080.01116.89
7.0.200.0030.01516.97
7.0.190.0060.01416.75
7.0.180.0040.01116.41
7.0.170.0040.01116.54
7.0.160.0070.01116.28
7.0.150.0070.01116.45
7.0.140.0130.00616.71
7.0.130.0080.00916.49
7.0.120.0030.01216.35
7.0.110.0040.01216.64
7.0.100.0060.01216.45
7.0.90.0050.01416.64
7.0.80.0030.01616.52
7.0.70.0100.01016.57
7.0.60.0120.00816.34
7.0.50.0090.01216.54
7.0.40.0120.00616.79
7.0.30.0030.01616.52
7.0.20.0000.01816.62
7.0.10.0140.00716.63
7.0.00.0110.00716.47

preferences:
43.71 ms | 400 KiB | 5 Q