3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = ['apple']; $test =& $foo; $bar = $foo; $bar[0] = 'orange'; var_dump($test[0]); $foo = ['apple']; $bar = $foo; $test =& $foo[0]; $bar[0] = 'orange'; var_dump($test); $foo = ['apple']; $test =& $foo[0]; $bar = $foo; $bar[0] = 'orange'; var_dump($test);

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)
8.3.60.0130.00716.63
8.3.50.0100.00716.46
8.3.40.0100.00718.81
8.3.30.0070.00718.85
8.3.20.0030.00621.60
8.3.10.0080.00023.64
8.3.00.0040.00418.04
8.2.180.0070.00718.29
8.2.170.0070.00722.96
8.2.160.0030.01021.06
8.2.150.0080.00024.18
8.2.140.0000.00724.66
8.2.130.0040.00420.53
8.2.120.0000.00726.35
8.2.110.0000.00919.38
8.2.100.0030.00917.78
8.2.90.0050.00319.64
8.2.80.0050.00317.97
8.2.70.0000.00817.92
8.2.60.0030.00618.16
8.2.50.0040.00418.10
8.2.40.0000.00822.38
8.2.30.0040.00419.34
8.2.20.0070.00018.03
8.2.10.0070.00018.05
8.2.00.0000.00718.06
8.1.280.0100.01025.92
8.1.270.0080.00023.64
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0070.00319.09
8.1.230.0080.00420.91
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0040.00417.35
8.1.190.0000.00817.53
8.1.180.0030.00618.10
8.1.170.0080.00018.53
8.1.160.0050.00218.89
8.1.150.0030.00420.23
8.1.140.0000.00819.37
8.1.130.0030.00318.75
8.1.120.0000.00717.35
8.1.110.0040.00417.27
8.1.100.0080.00017.34
8.1.90.0070.00017.30
8.1.80.0000.00717.39
8.1.70.0030.00317.40
8.1.60.0000.00717.43
8.1.50.0030.00517.40
8.1.40.0040.00417.39
8.1.30.0040.00417.53
8.1.20.0000.00717.61
8.1.10.0040.00417.51
8.1.00.0080.00017.44
8.0.300.0040.00419.65
8.0.290.0040.00416.75
8.0.280.0000.00718.36
8.0.270.0030.00617.06
8.0.260.0030.00316.64
8.0.250.0000.00716.91
8.0.240.0040.00416.86
8.0.230.0000.00716.89
8.0.220.0000.00716.75
8.0.210.0070.00016.79
8.0.200.0040.00416.76
8.0.190.0040.00416.87
8.0.180.0040.00416.67
8.0.170.0000.00816.73
8.0.160.0030.00516.80
8.0.150.0080.00016.78
8.0.140.0030.00316.73
8.0.130.0030.00313.30
8.0.120.0000.00716.82
8.0.110.0000.00716.83
8.0.100.0030.00516.79
8.0.90.0030.00316.76
8.0.80.0060.01616.80
8.0.70.0000.00716.62
8.0.60.0000.00716.90
8.0.50.0000.00716.82
8.0.30.0140.00517.14
8.0.20.0140.00617.40
8.0.10.0030.00316.74
8.0.00.0080.00816.83
7.4.330.0000.00515.55
7.4.320.0000.00616.50
7.4.300.0040.00416.39
7.4.290.0040.00416.47
7.4.280.0050.00216.42
7.4.270.0030.00316.28
7.4.260.0040.00416.34
7.4.250.0050.00316.34
7.4.240.0000.00716.48
7.4.230.0030.00316.41
7.4.220.0060.01216.50
7.4.210.0110.00716.53
7.4.200.0040.00416.17
7.4.160.0120.00816.36
7.4.150.0140.00517.40
7.4.140.0060.01217.86
7.4.130.0140.00816.46
7.4.120.0120.00916.42
7.4.110.0100.01616.50
7.4.100.0000.01816.42
7.4.90.0110.00616.66
7.4.80.0090.00919.39
7.4.70.0080.01116.59
7.4.60.0070.01016.39
7.4.50.0080.00616.13
7.4.40.0030.01516.21
7.4.30.0070.01416.46
7.4.00.0100.00714.81
7.3.330.0000.00513.02
7.3.320.0000.00612.95
7.3.310.0000.00716.26
7.3.300.0030.00316.21
7.3.290.0060.00816.24
7.3.280.0140.00416.25
7.3.270.0090.00917.40
7.3.260.0170.00616.18
7.3.250.0100.00716.35
7.3.240.0090.00716.36
7.3.230.0110.00616.25
7.3.210.0040.01216.30
7.3.200.0050.01116.60
7.3.190.0100.00616.41
7.3.180.0040.01416.18
7.3.170.0070.01416.23
7.3.160.0130.00716.12
7.3.10.0150.00016.01
7.3.00.0060.00916.28
7.2.330.0130.00516.73
7.2.320.0190.00316.51
7.2.310.0080.01116.56
7.2.300.0060.01016.69
7.2.290.0060.01016.67
7.2.130.0030.01316.20
7.2.120.0060.00716.36
7.2.110.0090.00916.13
7.2.100.0070.01116.07
7.2.90.0070.00816.45
7.2.80.0030.01616.67
7.2.70.0170.00416.49
7.2.60.0090.00916.66
7.2.50.0100.00616.80
7.2.40.0090.00616.67
7.2.30.0070.00716.69
7.2.20.0150.00016.67
7.2.10.0090.00616.84
7.2.00.0070.00716.57
7.1.250.0110.00415.27
7.1.200.0070.00715.40
7.1.70.0030.01216.81
7.1.60.0630.01333.07
7.1.50.0570.01332.78
7.1.40.0570.01032.66
7.1.30.0870.01032.58
7.1.20.0600.01032.74
7.1.10.0430.01314.73
7.1.00.0470.01014.91
7.0.200.0630.01014.79
7.0.190.0530.01014.56
7.0.180.0430.01014.15
7.0.170.0830.00014.32
7.0.160.0500.01314.42
7.0.150.0500.00714.46
7.0.140.0500.00714.43
7.0.130.1070.01014.89
7.0.120.0500.00714.63
7.0.110.0430.01314.58
7.0.100.0430.01014.52
7.0.90.0530.00714.64
7.0.80.0470.01014.47
7.0.70.0430.01014.29
7.0.60.0470.01014.27
7.0.50.0430.01314.72
7.0.40.0570.01314.62
7.0.30.0500.01014.44
7.0.20.0530.00714.75
7.0.10.0830.01014.63
7.0.00.0530.00714.79

preferences:
50.53 ms | 400 KiB | 5 Q