3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1,2,3,4,5]; foreach($a as $k => $v){ $a[$k] = $v * 2; } var_dump($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)
8.3.60.0140.00316.36
8.3.50.0040.01116.55
8.3.40.0070.00718.75
8.3.30.0000.01418.72
8.3.20.0000.00820.33
8.3.10.0060.00323.61
8.3.00.0080.00022.09
8.2.180.0090.00918.18
8.2.170.0140.00022.96
8.2.160.0060.00919.14
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0000.00821.24
8.2.120.0030.00526.35
8.2.110.0060.00322.13
8.2.100.0040.00817.84
8.2.90.0050.00319.35
8.2.80.0040.00418.04
8.2.70.0100.00017.50
8.2.60.0000.00818.03
8.2.50.0050.00318.10
8.2.40.0040.00420.61
8.2.30.0040.00421.09
8.2.20.0050.00518.22
8.2.10.0000.00718.14
8.2.00.0040.00418.17
8.1.280.0070.00725.92
8.1.270.0040.00422.24
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0040.00420.99
8.1.230.0070.00419.17
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0000.00817.35
8.1.180.0040.00418.10
8.1.170.0040.00418.88
8.1.160.0040.00419.00
8.1.150.0000.00820.54
8.1.140.0070.00019.67
8.1.130.0000.00718.93
8.1.120.0050.00217.39
8.1.110.0080.00017.44
8.1.100.0050.00317.43
8.1.90.0040.00417.42
8.1.80.0050.00317.34
8.1.70.0040.00417.42
8.1.60.0030.00517.54
8.1.50.0050.00317.51
8.1.40.0000.00917.49
8.1.30.0030.00617.62
8.1.20.0030.00617.55
8.1.10.0000.00817.59
8.1.00.0040.00417.39
8.0.300.0000.00720.16
8.0.290.0060.00316.75
8.0.280.0000.00718.56
8.0.270.0000.00717.20
8.0.260.0000.00616.84
8.0.250.0040.00416.84
8.0.240.0030.00616.93
8.0.230.0000.00916.93
8.0.220.0000.00716.90
8.0.210.0060.00016.92
8.0.200.0060.00016.96
8.0.190.0090.00016.97
8.0.180.0000.00816.86
8.0.170.0000.00716.88
8.0.160.0040.00416.78
8.0.150.0080.00016.82
8.0.140.0070.00016.86
8.0.130.0050.00013.28
8.0.120.0040.00416.86
8.0.110.0000.00716.70
8.0.100.0000.00716.90
8.0.90.0050.00216.80
8.0.80.0040.01316.85
8.0.70.0000.00716.86
8.0.60.0000.00817.00
8.0.50.0070.00016.92
8.0.30.0100.00617.19
8.0.20.0150.00817.40
8.0.10.0030.00317.05
8.0.00.0130.00716.53
7.4.330.0000.00515.55
7.4.320.0030.00316.51
7.4.300.0030.00316.60
7.4.290.0030.00316.48
7.4.280.0070.00016.63
7.4.270.0000.00716.49
7.4.260.0030.00316.38
7.4.250.0040.00416.38
7.4.240.0000.00716.61
7.4.230.0000.00716.59
7.4.220.0140.00316.56
7.4.210.0100.00716.59
7.4.200.0040.00416.57
7.4.160.0120.00616.52
7.4.150.0120.00617.40
7.4.140.0100.00917.86
7.4.130.0110.00716.51
7.4.120.0140.00916.41
7.3.330.0050.00013.23
7.3.320.0000.00613.08
7.3.310.0040.00416.17
7.3.300.0070.00016.27
7.3.290.0000.00716.36
7.3.280.0070.00916.29
7.3.270.0030.01417.40
7.3.260.0110.00916.36
7.3.250.0120.00716.25
7.3.240.0090.00816.28
7.1.70.0060.01417.16

preferences:
44.33 ms | 400 KiB | 5 Q