3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1 => []]; if(!isset($a[1][2])){ echo "Nope"; } else { echo "Yup"; }

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)
8.3.60.0130.00318.31
8.3.50.0140.00316.46
8.3.40.0040.01118.45
8.3.30.0070.00718.84
8.3.20.0080.00020.30
8.3.10.0040.00423.61
8.3.00.0030.00619.56
8.2.180.0180.00318.17
8.2.170.0170.00022.96
8.2.160.0060.00818.92
8.2.150.0000.00824.18
8.2.140.0070.00024.66
8.2.130.0000.00919.27
8.2.120.0000.00726.35
8.2.110.0060.00320.53
8.2.100.0080.00417.84
8.2.90.0050.00319.01
8.2.80.0000.00817.97
8.2.70.0000.00817.63
8.2.60.0000.00717.93
8.2.50.0080.00018.10
8.2.40.0000.00720.61
8.2.30.0000.00819.42
8.2.20.0050.00218.18
8.2.10.0040.00418.08
8.2.00.0040.00418.11
8.1.270.0040.00422.13
8.1.260.0050.00326.35
8.1.250.0020.00528.09
8.1.240.0100.00022.59
8.1.230.0060.00619.16
8.1.220.0030.00717.74
8.1.210.0040.00418.77
8.1.200.0000.00817.35
8.1.190.0030.00617.23
8.1.180.0030.00618.10
8.1.170.0080.00018.46
8.1.160.0000.00819.02
8.1.150.0020.00520.68
8.1.140.0050.00219.58
8.1.130.0000.00718.77
8.1.120.0030.00317.46
8.1.110.0050.00317.41
8.1.100.0000.00717.50
8.1.90.0000.00717.38
8.1.80.0050.00217.38
8.1.70.0030.00717.46
8.1.60.0000.00817.57
8.1.50.0000.00817.41
8.1.40.0060.00617.46
8.1.30.0040.00417.57
8.1.20.0000.00717.55
8.1.10.0000.00717.61
8.1.00.0080.00017.58
8.0.300.0050.00218.77
8.0.290.0000.00816.75
8.0.280.0000.00718.36
8.0.270.0000.00717.25
8.0.260.0080.00016.82
8.0.250.0030.00316.98
8.0.240.0030.00316.95
8.0.230.0000.00716.96
8.0.220.0040.00416.88
8.0.210.0070.00016.93
8.0.200.0030.00316.92
8.0.190.0030.00616.84
8.0.180.0000.00716.97
8.0.170.0040.00416.79
8.0.160.0040.00416.78
8.0.150.0030.00516.83
8.0.140.0040.00416.74
8.0.130.0000.00513.34
8.0.120.0000.00716.79
8.0.110.0030.00316.87
8.0.100.0070.00016.71
8.0.90.0000.00717.01
8.0.80.0110.00316.88
8.0.70.0040.00416.75
8.0.60.0040.00416.68
8.0.50.0000.00716.76
8.0.30.0070.01217.32
8.0.20.0110.00817.40
8.0.10.0040.00416.82
8.0.00.0070.01116.75
7.4.330.0020.00215.55
7.4.320.0030.00316.52
7.4.300.0060.00016.60
7.4.290.0030.00616.36
7.4.280.0000.00816.61
7.4.270.0030.00316.53
7.4.260.0000.00816.49
7.4.250.0040.00416.50
7.4.240.0090.00016.46
7.4.230.0050.00216.34
7.4.220.0090.00916.48
7.4.210.0000.01716.50
7.4.200.0000.00716.26
7.4.160.0070.01016.50
7.4.150.0090.00917.40
7.4.140.0120.00817.86
7.4.130.0090.00916.59
7.4.120.0110.01116.52
7.3.330.0020.00213.02
7.3.320.0000.00813.00
7.3.310.0070.00016.14
7.3.300.0030.00316.31
7.3.290.0070.00916.32
7.3.280.0090.00816.31
7.3.270.0150.02117.40
7.3.260.0120.00516.36
7.3.250.0070.01116.28
7.3.240.0050.01316.51
7.0.170.0080.01216.10

preferences:
53.51 ms | 400 KiB | 5 Q