3v4l.org

run code in 300+ PHP versions simultaneously
<?php $fooList = [10, 20, 30, 40, 50, 60]; $barList = []; foreach ($fooList as $fooItem) { $barList[] = &$fooItem; } var_dump($fooList); var_dump($barList);

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)
8.3.60.0180.00018.30
8.3.50.0120.00616.59
8.3.40.0110.00318.67
8.3.30.0100.01018.56
8.3.20.0040.00420.16
8.3.10.0080.00021.77
8.3.00.0050.00317.47
8.2.180.0000.01518.41
8.2.170.0070.01022.96
8.2.160.0060.00920.52
8.2.150.0000.00824.18
8.2.140.0030.00724.66
8.2.130.0040.00426.16
8.2.120.0040.00419.79
8.2.110.0050.00520.35
8.2.100.0090.00317.84
8.2.90.0080.00019.36
8.2.80.0000.00817.97
8.2.70.0040.00717.25
8.2.60.0040.00418.05
8.2.50.0000.00918.10
8.2.40.0050.00320.42
8.2.30.0000.00821.21
8.2.20.0070.00018.21
8.2.10.0000.00717.98
8.2.00.0060.00317.98
8.1.280.0120.00325.92
8.1.270.0080.00023.91
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0100.00023.64
8.1.230.0070.00320.87
8.1.220.0080.00017.74
8.1.210.0050.00318.77
8.1.200.0090.00017.35
8.1.190.0040.00417.22
8.1.180.0040.00418.10
8.1.170.0030.00618.59
8.1.160.0020.00519.00
8.1.150.0030.00520.55
8.1.140.0040.00419.51
8.1.130.0030.00318.79
8.1.120.0050.00217.46
8.1.110.0020.00517.44
8.1.100.0080.00017.35
8.1.90.0030.00717.33
8.1.80.0000.00717.34
8.1.70.0000.00717.47
8.1.60.0000.00817.61
8.1.50.0000.00917.49
8.1.40.0000.00717.53
8.1.30.0030.00617.67
8.1.20.0070.00017.59
8.1.10.0040.00417.36
8.1.00.0080.00017.45
8.0.300.0050.00218.77
8.0.290.0040.00416.63
8.0.280.0060.00018.36
8.0.270.0000.00717.16
8.0.260.0030.00316.80
8.0.250.0000.00816.86
8.0.240.0000.00716.95
8.0.230.0030.00316.90
8.0.220.0030.00316.89
8.0.210.0040.00416.78
8.0.200.0030.00317.00
8.0.190.0000.00816.92
8.0.180.0000.00716.91
8.0.170.0040.00416.81
8.0.160.0040.00416.80
8.0.150.0070.00016.86
8.0.140.0040.00416.83
8.0.130.0000.00513.35
8.0.120.0040.00416.82
8.0.110.0030.00316.95
8.0.100.0050.00216.99
8.0.90.0000.00716.90
8.0.80.0070.00716.93
8.0.70.0040.00416.74
8.0.60.0040.00416.68
8.0.50.0040.00416.88
8.0.30.0130.00717.08
8.0.20.0130.01217.40
8.0.10.0000.00816.88
8.0.00.0100.01016.92
7.4.330.0020.00215.55
7.4.320.0040.00416.50
7.4.300.0030.00316.59
7.4.290.0050.00216.56
7.4.280.0030.00316.50
7.4.270.0040.00416.57
7.4.260.0030.00313.31
7.4.250.0040.00416.47
7.4.240.0040.00416.48
7.4.230.0070.00016.33
7.4.220.0130.00716.37
7.4.210.0070.00716.62
7.4.200.0030.00316.68
7.4.160.0110.00516.61
7.4.150.0030.01417.40
7.4.140.0090.01117.86
7.4.130.0090.01516.57
7.4.120.0030.01516.56
7.4.110.0070.01416.38
7.4.100.0100.01016.36
7.4.90.0100.00716.54
7.4.80.0150.00319.39
7.4.70.0070.01016.64
7.4.60.0100.00616.39
7.4.50.0060.00616.21
7.4.40.0080.00816.38
7.4.30.0060.01016.43
7.4.00.0120.00314.82
7.3.330.0050.00013.16
7.3.320.0050.00013.16
7.3.310.0050.00316.27
7.3.300.0070.00016.21
7.3.290.0040.00416.34
7.3.280.0090.00816.32
7.3.270.0150.00317.40
7.3.260.0120.00916.31
7.3.250.0130.00616.47
7.3.240.0100.01116.42
7.3.230.0120.00616.66
7.3.210.0110.00616.48
7.3.200.0130.00316.50
7.3.190.0130.00316.37
7.3.180.0040.01216.24
7.3.170.0060.01016.19
7.3.160.0090.00916.49
7.3.120.0080.01014.83
7.3.110.0050.00815.01
7.3.100.0070.00614.79
7.3.90.0030.01114.82
7.3.80.0070.00814.86
7.3.70.0080.00814.75
7.3.60.0080.00514.96
7.3.50.0040.00814.87
7.3.40.0040.01014.87
7.3.30.0110.00114.85
7.3.20.0000.01416.57
7.3.10.0060.00816.67
7.3.00.0040.01016.85
7.2.330.0120.00616.63
7.2.320.0150.00316.39
7.2.310.0080.00816.37
7.2.300.0110.00816.54
7.2.290.0150.01016.68
7.2.240.0040.01214.79
7.2.230.0040.00714.93
7.2.220.0020.01215.13
7.2.210.0030.01114.53
7.2.200.0060.00615.08
7.2.190.0050.00914.94
7.2.180.0050.01115.01
7.2.170.0060.00615.07
7.2.160.0070.00714.95
7.2.150.0090.00716.78
7.2.140.0030.00917.01
7.2.130.0050.00816.84
7.2.120.0060.00916.80
7.2.110.0060.00516.91
7.2.100.0020.01116.92
7.2.90.0070.00916.80
7.2.80.0040.00916.96
7.2.70.0040.01117.00
7.2.60.0060.00916.95
7.2.50.0100.00517.07
7.2.40.0060.01016.78
7.2.30.0030.01316.82
7.2.20.0100.00216.85
7.2.10.0020.01416.93
7.2.00.0050.00816.72
7.1.330.0020.01215.71
7.1.320.0080.00615.72
7.1.310.0020.01115.93
7.1.300.0080.00815.81
7.1.290.0060.00915.61
7.1.280.0080.00615.80
7.1.270.0050.00915.78
7.1.260.0070.00515.70
7.1.250.0100.00615.85
7.1.200.0080.00415.86
7.1.100.0100.00318.27
7.1.70.1370.01315.20
7.1.60.1470.01033.28
7.1.50.1130.02032.94
7.1.40.1030.01732.60
7.1.30.0270.01332.51
7.1.20.1400.02032.74
7.1.10.0430.01014.72
7.1.00.1600.01014.71
7.0.200.1430.01314.80
7.0.190.1670.01015.05
7.0.180.1230.01014.32
7.0.170.0230.01014.30
7.0.160.1500.01314.35
7.0.150.0030.01014.37
7.0.140.0230.01314.41
7.0.130.0070.01014.92
7.0.120.0470.01314.77
7.0.110.0600.00714.61
7.0.100.0030.01314.45
7.0.90.1430.01014.61
7.0.80.1330.01714.55
7.0.70.1230.01714.41
7.0.60.1530.01314.43
7.0.50.1600.00714.72
7.0.40.1130.01314.48
7.0.30.1070.00714.49
7.0.20.1270.00314.41
7.0.10.1700.00314.56
7.0.00.1600.00314.69

preferences:
52.54 ms | 400 KiB | 5 Q