3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=[1]; $a[]=&$a; 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)
8.4.140.0110.01017.57
8.4.130.0120.00718.48
8.4.120.0070.01024.04
8.4.110.0070.00318.81
8.4.100.0090.00817.72
8.4.90.0040.00618.72
8.4.80.0110.00817.71
8.4.70.0100.00517.73
8.4.60.0060.00518.76
8.4.50.0070.00923.70
8.4.40.0100.01019.33
8.4.30.0050.00520.27
8.4.20.0060.01319.79
8.4.10.0160.00020.72
8.3.270.0170.00916.49
8.3.260.0130.00616.66
8.3.250.0070.00918.88
8.3.240.0090.01017.19
8.3.230.0050.00516.41
8.3.220.0030.00617.09
8.3.210.0110.00716.41
8.3.200.0050.00316.46
8.3.190.0100.00817.26
8.3.180.0120.00718.33
8.3.170.0030.00517.20
8.3.160.0140.00420.56
8.3.150.0100.01016.54
8.3.140.0110.00718.90
8.3.130.0080.00018.38
8.3.120.0100.00720.54
8.3.110.0030.00616.52
8.3.100.0030.00516.77
8.3.90.0050.00326.77
8.3.80.0030.00719.36
8.3.70.0070.00716.58
8.3.60.0150.00316.63
8.3.50.0140.00624.46
8.3.40.0070.01020.34
8.3.30.0040.01118.58
8.3.20.0040.00424.18
8.3.10.0080.00024.66
8.3.00.0040.00426.16
8.2.290.0140.00420.24
8.2.280.0130.00618.30
8.2.270.0190.00016.60
8.2.260.0120.00616.61
8.2.250.0040.00416.63
8.2.240.0130.00317.06
8.2.230.0120.00320.94
8.2.220.0000.00824.06
8.2.210.0000.00726.77
8.2.200.0070.00418.41
8.2.190.0030.01316.58
8.2.180.0110.00325.92
8.2.170.0070.00718.86
8.2.160.0090.00622.96
8.2.150.0070.00025.66
8.2.140.0040.00424.66
8.2.130.0090.00026.16
8.2.120.0040.00426.35
8.2.110.0000.01021.03
8.2.100.0110.00017.78
8.2.90.0040.00417.75
8.2.80.0080.00017.97
8.2.70.0090.00017.63
8.2.60.0040.00417.50
8.2.50.0060.00318.05
8.2.40.0070.00020.66
8.2.30.0030.00517.93
8.2.20.0040.00417.93
8.2.10.0040.00419.21
8.2.00.0000.00819.16
8.1.330.0060.01321.79
8.1.320.0110.00815.95
8.1.310.0110.00715.90
8.1.300.0040.00418.28
8.1.290.0030.00518.88
8.1.280.0100.00325.92
8.1.270.0080.00023.58
8.1.260.0000.00728.09
8.1.250.0000.00728.09
8.1.240.0030.00620.87
8.1.230.0140.00019.10
8.1.220.0030.00617.74
8.1.210.0030.00618.77
8.1.200.0000.00917.41
8.1.190.0040.00417.11
8.1.180.0040.00418.10
8.1.170.0040.00417.62
8.1.160.0030.00518.82
8.1.150.0000.00818.86
8.1.140.0030.00518.91
8.1.130.0040.00417.43
8.1.120.0030.00517.30
8.1.110.0000.00817.38
8.1.100.0040.00417.45
8.1.90.0050.00317.36
8.1.80.0040.00417.42
8.1.70.0000.00717.40
8.1.60.0040.00417.48
8.1.50.0080.00017.48
8.1.40.0000.00717.47
8.1.30.0020.00517.54
8.1.20.0040.00417.65
8.1.10.0040.00417.43
8.1.00.0050.00217.26
8.0.300.0000.00719.70
8.0.290.0080.00016.75
8.0.280.0000.00718.29
8.0.270.0030.00317.87
8.0.260.0000.00716.77
8.0.250.0030.00316.85
8.0.240.0000.00716.88
8.0.230.0000.00616.86
8.0.220.0000.00716.83
8.0.210.0000.00716.84
8.0.200.0000.00716.89
8.0.190.0000.00816.79
8.0.180.0060.00316.75
8.0.170.0060.00316.73
8.0.160.0000.00816.89
8.0.150.0040.00416.69
8.0.140.0080.00016.66
8.0.130.0030.00313.30
8.0.120.0040.00416.71
8.0.110.0040.00416.83
8.0.100.0040.00416.65
8.0.90.0040.00416.72
8.0.80.0100.00616.80
8.0.70.0030.00516.88
8.0.60.0000.00716.92
8.0.50.0000.00716.67
8.0.30.0070.01017.11
8.0.20.0100.00817.06
8.0.10.0000.00716.90
8.0.00.0090.01316.86
7.4.330.0000.00515.55
7.4.320.0000.00716.44
7.4.300.0000.00616.48
7.4.290.0000.00816.52
7.4.280.0060.00316.42
7.4.270.0060.00016.41
7.4.260.0000.00513.10
7.4.250.0000.00716.40
7.4.240.0040.00416.51
7.4.230.0070.00016.41
7.4.220.0040.00416.43
7.4.210.0080.00616.42
7.4.200.0050.00316.64
7.4.130.0080.01016.51
7.4.120.0150.00816.58
7.4.110.0100.01116.39
7.4.100.0150.00716.43
7.4.90.0120.00816.54
7.4.80.0090.01216.42
7.4.70.0100.01016.41
7.4.60.0060.01416.38
7.4.50.0090.01016.42
7.4.40.0150.00516.38
7.4.30.0110.01016.35
7.4.20.0120.01116.35
7.4.10.0110.01016.38
7.4.00.0120.01016.33
7.3.330.0000.00716.25
7.3.320.0060.00012.89
7.3.310.0030.00316.27
7.3.300.0030.00316.03
7.3.290.0100.00516.25
7.3.260.0170.00316.15
7.3.230.0000.01716.19
7.3.220.0100.01016.29
7.3.210.0100.01016.26
7.3.200.0090.00916.34
7.3.190.0040.01416.45
7.3.180.0100.01016.27
7.3.170.0100.01016.30
7.3.160.0100.00916.29
7.3.150.0110.01016.29
7.3.140.0140.00816.31
7.3.130.0070.01416.43
7.3.120.0090.00916.25
7.3.110.0110.00916.26
7.3.100.0140.00516.25
7.3.90.0080.01316.32
7.3.80.0070.01216.28
7.3.70.0080.01016.30
7.3.60.0130.00916.20
7.3.50.0080.01116.24
7.3.40.0090.01216.26
7.3.30.0100.01416.21
7.3.20.0070.01116.22
7.3.10.0100.00916.32
7.3.00.0130.01016.29
7.2.330.0100.01016.53
7.2.320.0110.01116.57
7.2.310.0090.01016.51
7.2.300.0110.00916.56
7.2.290.0120.00816.53
7.2.280.0140.00916.43
7.2.270.0130.01016.52
7.2.260.0090.01216.46
7.2.250.0120.00816.54
7.2.240.0100.00916.38
7.2.230.0110.00916.25
7.2.220.0100.01016.49
7.2.210.0130.00616.43
7.2.200.0130.00916.39
7.2.190.0090.01016.44
7.2.180.0130.00916.44
7.2.170.0110.01016.48
7.2.160.0130.00616.37
7.2.150.0110.01016.57
7.2.140.0130.01216.50
7.2.130.0150.00916.49
7.2.120.0100.01116.54
7.2.110.0120.00816.42
7.2.100.0110.01016.40
7.2.90.0150.00716.48
7.2.80.0120.00816.48
7.2.70.0090.01316.35
7.2.60.0120.00716.43
7.2.50.0140.00816.36
7.2.40.0350.00916.48
7.2.30.0140.00716.52
7.2.20.0160.00516.45
7.2.10.0140.00916.50
7.2.00.0100.01216.48

preferences:
201.87 ms | 403 KiB | 5 Q