3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [1,2]; foreach($array as &$a) { if ($a == 1) { $array[] = 3; } echo $a . "\n"; } echo "----------\n"; var_dump($array); foreach($array as $a) { echo $a . "\n"; }

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)
8.3.60.0090.00918.28
8.3.50.0070.01018.04
8.3.40.0070.00718.69
8.3.30.0070.00718.71
8.3.20.0080.00020.16
8.3.10.0080.00020.73
8.3.00.0000.00819.15
8.2.180.0090.00916.75
8.2.170.0120.00622.96
8.2.160.0100.00319.41
8.2.150.0060.01024.18
8.2.140.0000.00724.66
8.2.130.0070.00026.16
8.2.120.0000.00719.95
8.2.110.0030.00622.08
8.2.100.0110.00017.91
8.2.90.0050.00319.11
8.2.80.0080.00017.97
8.2.70.0060.00317.63
8.2.60.0040.00418.16
8.2.50.0050.00318.10
8.2.40.0080.00022.18
8.2.30.0030.00519.37
8.2.20.0040.00418.19
8.2.10.0040.00418.00
8.2.00.0020.00518.11
8.1.280.0140.00725.92
8.1.270.0000.00821.93
8.1.260.0030.00526.35
8.1.250.0040.00428.09
8.1.240.0000.00922.56
8.1.230.0080.00319.08
8.1.220.0000.00817.79
8.1.210.0000.00818.77
8.1.200.0030.00617.36
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0050.00318.61
8.1.160.0040.00418.92
8.1.150.0040.00418.88
8.1.140.0000.00719.64
8.1.130.0070.00018.93
8.1.120.0000.00717.35
8.1.110.0040.00417.43
8.1.100.0050.00217.50
8.1.90.0000.00717.43
8.1.80.0050.00317.42
8.1.70.0040.00417.48
8.1.60.0000.00917.46
8.1.50.0000.00717.41
8.1.40.0040.00417.41
8.1.30.0050.00317.72
8.1.20.0040.00417.67
8.1.10.0050.00217.52
8.1.00.0060.00317.30
8.0.300.0000.00718.77
8.0.290.0030.00616.88
8.0.280.0030.00318.38
8.0.270.0030.00317.16
8.0.260.0040.00418.92
8.0.250.0060.00016.91
8.0.240.0030.00316.81
8.0.230.0000.00716.97
8.0.220.0030.00316.85
8.0.210.0000.00816.87
8.0.200.0060.00016.82
8.0.190.0080.00016.99
8.0.180.0000.00716.87
8.0.170.0040.00416.80
8.0.160.0060.00316.93
8.0.150.0050.00216.89
8.0.140.0000.00716.88
8.0.130.0060.00013.27
8.0.120.0040.00416.89
8.0.110.0000.00816.71
8.0.100.0040.00416.77
8.0.90.0060.00316.83
8.0.80.0060.01016.87
8.0.70.0070.00016.76
8.0.60.0040.00416.71
8.0.50.0040.00417.00
8.0.30.0090.01017.01
8.0.20.0120.01017.40
8.0.10.0040.00416.91
8.0.00.0100.00716.66
7.4.330.0050.00015.55
7.4.320.0000.00716.43
7.4.300.0000.00716.49
7.4.290.0030.00316.52
7.4.280.0040.00416.44
7.4.270.0040.00416.52
7.4.260.0050.00516.58
7.4.250.0070.00016.49
7.4.240.0040.00416.59
7.4.230.0030.00316.68
7.4.220.0080.01216.50
7.4.210.0020.01316.55
7.4.200.0070.00016.38
7.4.160.0140.00416.36
7.4.150.0140.00417.40
7.4.140.0130.00917.86
7.4.130.0090.00916.66
7.4.120.0080.01116.61
7.4.110.0190.00016.43
7.4.100.0040.01416.54
7.4.90.0140.00716.42
7.4.80.0110.00619.39
7.4.70.0080.00816.59
7.4.60.0130.00316.41
7.4.50.0030.01416.39
7.4.40.0140.00316.51
7.4.30.0130.00616.55
7.4.00.0120.00315.20
7.3.330.0030.00313.14
7.3.320.0000.00513.19
7.3.310.0000.00716.26
7.3.300.0030.00316.10
7.3.290.0060.00016.25
7.3.280.0090.00916.26
7.3.270.0090.00917.40
7.3.260.0100.01216.46
7.3.250.0100.01016.46
7.3.240.0110.00916.42
7.3.230.0100.01016.77
7.3.210.0140.00316.36
7.3.200.0000.01716.28
7.3.190.0000.01816.43
7.3.180.0090.00916.32
7.3.170.0080.00816.10
7.3.160.0060.01116.47
7.2.330.0080.01216.58
7.2.320.0170.00016.35
7.2.310.0050.01116.72
7.2.300.0060.01216.74
7.2.290.0120.00616.36
7.2.60.0000.01416.86
7.1.200.0040.00815.71
7.1.70.0000.01017.11
7.1.60.0050.01016.97
7.1.50.0050.01116.79
7.1.40.0130.00716.39
7.1.30.0090.00916.42
7.1.20.0130.00516.59
7.1.10.0080.00316.50
7.1.00.0030.00716.81
7.0.200.0050.00516.50
7.0.190.0060.00616.74
7.0.180.0060.00616.11
7.0.170.0040.01116.31
7.0.160.0000.01416.13
7.0.150.0030.00516.20
7.0.140.0000.00716.55
7.0.130.0000.00816.46
7.0.120.0000.00716.64
7.0.110.0100.00016.48
7.0.100.0040.00416.34
7.0.90.0000.00916.25
7.0.80.0040.00416.54
7.0.70.0050.00516.33
7.0.60.0000.01016.35
7.0.50.0050.00816.67
7.0.40.0000.00714.79
7.0.30.0030.00714.79
7.0.20.0040.00414.79
7.0.10.0050.00514.79
7.0.00.0000.00914.79

preferences:
38.35 ms | 400 KiB | 5 Q