3v4l.org

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

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)
8.3.70.0110.01118.55
8.3.60.0130.00716.88
8.3.50.0290.00521.03
8.3.40.0040.01118.71
8.3.30.0030.01718.68
8.3.20.0070.00020.21
8.3.10.0030.00623.60
8.3.00.0070.00023.53
8.2.180.0100.01016.63
8.2.170.0100.00722.96
8.2.160.0130.00020.47
8.2.150.0060.00324.18
8.2.140.0000.00824.66
8.2.130.0000.00819.77
8.2.120.0040.00426.35
8.2.110.0060.00322.08
8.2.100.0080.00420.77
8.2.90.0000.01017.63
8.2.80.0030.00518.73
8.2.70.0050.00317.50
8.2.60.0040.00417.75
8.2.50.0030.00719.23
8.2.40.0050.00319.35
8.2.30.0000.00719.36
8.2.20.0040.00417.61
8.2.10.0040.00418.11
8.2.00.0000.00718.18
8.1.280.0130.00725.92
8.1.270.0040.00418.84
8.1.260.0000.01028.09
8.1.250.0080.00028.09
8.1.240.0040.00423.89
8.1.230.0080.00319.09
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0000.00917.00
8.1.190.0090.00017.22
8.1.180.0050.00318.10
8.1.170.0030.00620.29
8.1.160.0000.00720.70
8.1.150.0000.00818.87
8.1.140.0080.00019.62
8.1.130.0000.00717.69
8.1.120.0000.00717.47
8.1.110.0040.00417.41
8.1.100.0000.00817.46
8.1.90.0040.00417.52
8.1.80.0030.00517.32
8.1.70.0070.00017.37
8.1.60.0030.00617.48
8.1.50.0040.00417.41
8.1.40.0080.00417.45
8.1.30.0060.00317.66
8.1.20.0040.00417.65
8.1.10.0030.00617.47
8.1.00.0000.00717.48
8.0.300.0070.00018.77
8.0.290.0030.00716.75
8.0.280.0030.00318.42
8.0.270.0030.00517.23
8.0.260.0030.00317.29
8.0.250.0040.00416.84
8.0.240.0070.00016.83
8.0.230.0040.00416.89
8.0.220.0050.00216.90
8.0.210.0030.00316.81
8.0.200.0000.00916.99
8.0.190.0050.00616.94
8.0.180.0000.01016.93
8.0.170.0080.00016.89
8.0.160.0070.00016.94
8.0.150.0070.00016.84
8.0.140.0030.00316.84
8.0.130.0040.00413.34
8.0.120.0030.00516.87
8.0.110.0040.00416.91
8.0.100.0050.00516.95
8.0.90.0040.00416.68
8.0.80.0060.00916.90
8.0.70.0000.00816.77
8.0.60.0050.00216.84
8.0.50.0000.00716.77
8.0.30.0100.00917.15
8.0.20.0090.01417.40
8.0.10.0040.00416.97
8.0.00.0130.00716.74
7.4.330.0000.00516.67
7.4.320.0060.00016.51
7.4.300.0070.00016.60
7.4.290.0030.00316.43
7.4.280.0040.00416.50
7.4.270.0040.00416.60
7.4.260.0000.00716.38
7.4.250.0000.00816.48
7.4.240.0030.00516.55
7.4.230.0030.00516.52
7.4.220.0140.00716.67
7.4.210.0060.00916.55
7.4.200.0030.00316.43
7.4.160.0090.00616.42
7.4.150.0080.01117.40
7.4.140.0090.00917.86
7.4.130.0090.01116.45
7.4.120.0110.00716.47
7.4.110.0030.01316.30
7.4.100.0110.00716.48
7.4.90.0100.00716.41
7.4.80.0110.01019.39
7.4.70.0030.01416.57
7.4.60.0090.00616.46
7.4.50.0100.00716.54
7.4.40.0150.00316.76
7.4.30.0070.01016.42
7.4.00.0140.00314.85
7.3.330.0060.00013.09
7.3.320.0060.00012.99
7.3.310.0040.00416.10
7.3.300.0030.00316.22
7.3.290.0030.00316.19
7.3.280.0080.01216.27
7.3.270.0110.00717.40
7.3.260.0110.00616.53
7.3.250.0100.00816.35
7.3.240.0100.00816.53
7.3.230.0100.00716.39
7.3.210.0130.00316.46
7.3.200.0100.01019.39
7.3.190.0100.00616.29
7.3.180.0170.00316.41
7.3.170.0110.01116.27
7.3.160.0100.01316.20
7.2.330.0060.01216.64
7.2.320.0140.00316.68
7.2.310.0080.01116.35
7.2.300.0070.01416.61
7.2.290.0040.01416.52
7.2.60.0090.00616.83
7.2.00.0000.01319.37
7.1.200.0030.00915.85
7.1.100.0110.00517.86
7.1.70.0050.00217.28
7.1.60.0090.01519.30
7.1.50.0070.01417.14
7.1.00.0000.08022.57
7.0.200.0000.00916.84
7.0.60.0070.05721.82
7.0.50.0200.07017.87
7.0.40.0030.05020.27
7.0.30.0230.04020.19
7.0.20.0230.07320.16
7.0.10.0070.05320.30
7.0.00.0000.08320.08
5.6.280.0000.03720.78
5.6.210.0100.07320.61
5.6.200.0100.04318.18
5.6.190.0000.04720.47
5.6.180.0470.06320.61
5.6.170.0230.08720.57
5.6.160.0070.08720.46
5.6.150.0070.03718.12
5.6.140.0070.08318.18
5.6.130.0130.07018.14
5.6.120.0070.08321.00
5.6.110.0130.07021.11
5.6.100.0070.04321.11
5.6.90.0000.08720.95
5.6.80.0170.06320.43
5.5.350.2800.03720.52
5.5.340.0070.07317.92
5.5.330.0070.04320.08
5.5.320.0500.07720.32
5.5.310.0330.06720.31
5.5.300.0030.03717.92
5.5.290.0130.07017.98
5.5.280.0070.05020.97
5.5.270.0130.08320.94
5.5.260.0270.06320.64
5.5.250.0100.07720.57
5.5.240.0200.07320.36

preferences:
69.04 ms | 401 KiB | 5 Q