3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [1,2,3]; foreach($array as &$a) { echo $a . "\n"; } echo "----------\n"; foreach($array as $a) { echo $a . "\n"; echo "last element: {$array[2]}\n"; }

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)
8.3.60.0090.01218.55
8.3.50.0090.01218.04
8.3.40.0110.00318.57
8.3.30.0110.00418.73
8.3.20.0080.00020.29
8.3.10.0040.00420.86
8.3.00.0040.00420.89
8.2.180.0140.00718.41
8.2.170.0110.00422.96
8.2.160.0070.00719.47
8.2.150.0040.00425.66
8.2.140.0050.00324.66
8.2.130.0060.00318.07
8.2.120.0000.00826.35
8.2.110.0100.00022.12
8.2.100.0110.00018.03
8.2.90.0000.00919.17
8.2.80.0050.00317.97
8.2.70.0000.00817.50
8.2.60.0040.00417.93
8.2.50.0060.00318.16
8.2.40.0000.00922.33
8.2.30.0050.00319.32
8.2.20.0040.00418.23
8.2.10.0000.00718.03
8.2.00.0000.00718.17
8.1.280.0150.00325.92
8.1.270.0000.00722.11
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00023.84
8.1.230.0000.01122.20
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0060.00317.35
8.1.190.0030.00617.35
8.1.180.0030.00618.10
8.1.170.0000.00818.56
8.1.160.0000.00719.02
8.1.150.0000.00819.02
8.1.140.0040.00419.58
8.1.130.0070.00018.80
8.1.120.0040.00417.50
8.1.110.0040.00417.36
8.1.100.0070.00017.48
8.1.90.0000.00717.52
8.1.80.0000.00717.36
8.1.70.0070.00017.43
8.1.60.0000.00817.59
8.1.50.0120.00017.48
8.1.40.0080.00017.50
8.1.30.0000.00717.70
8.1.20.0040.00417.55
8.1.10.0000.00717.62
8.1.00.0060.00317.55
8.0.300.0050.00318.77
8.0.290.0000.00916.75
8.0.280.0070.00018.32
8.0.270.0040.00416.75
8.0.260.0030.00518.89
8.0.250.0030.00316.98
8.0.240.0070.00016.85
8.0.230.0030.00316.94
8.0.220.0000.00716.86
8.0.210.0070.00016.79
8.0.200.0040.00416.91
8.0.190.0060.00316.92
8.0.180.0000.00716.93
8.0.170.0000.00816.80
8.0.160.0040.00416.97
8.0.150.0050.00216.79
8.0.140.0040.00416.84
8.0.130.0000.00613.38
8.0.120.0000.00716.89
8.0.110.0030.00316.70
8.0.100.0030.00516.72
8.0.90.0000.00917.00
8.0.80.0140.00416.89
8.0.70.0070.00016.76
8.0.60.0000.00716.75
8.0.50.0000.00716.67
8.0.30.0080.01117.20
8.0.20.0110.00817.41
8.0.10.0040.00417.13
8.0.00.0140.00716.84
7.4.330.0050.00015.55
7.4.320.0040.00416.63
7.4.300.0030.00316.38
7.4.290.0030.00316.64
7.4.280.0000.00716.48
7.4.270.0030.00316.62
7.4.260.0090.00016.48
7.4.250.0000.00716.48
7.4.240.0040.00416.61
7.4.230.0030.00316.43
7.4.220.0130.00616.57
7.4.210.0060.00916.54
7.4.200.0050.00216.39
7.4.160.0110.00616.43
7.4.150.0090.00917.40
7.4.140.0060.01617.86
7.4.130.0090.00916.39
7.4.120.0130.00616.53
7.4.110.0170.00816.64
7.4.100.0070.01016.53
7.4.90.0120.00616.70
7.4.80.0130.00319.39
7.4.70.0080.01216.62
7.4.60.0140.00316.47
7.4.50.0030.01416.56
7.4.40.0100.00716.44
7.4.30.0130.01016.55
7.4.00.0030.01014.80
7.3.330.0020.00213.23
7.3.320.0000.00513.17
7.3.310.0000.00716.36
7.3.300.0030.00316.17
7.3.290.0030.00316.30
7.3.280.0100.00916.27
7.3.270.0100.00717.40
7.3.260.0110.00916.41
7.3.250.0090.00916.36
7.3.240.0080.00916.43
7.3.230.0080.00816.59
7.3.210.0120.00416.58
7.3.200.0120.00416.61
7.3.190.0070.01016.43
7.3.180.0110.01116.66
7.3.170.0090.00616.51
7.3.160.0070.01016.59
7.3.10.0030.00816.55
7.3.00.0050.00816.61
7.2.330.0070.01116.49
7.2.320.0130.00316.70
7.2.310.0030.01316.50
7.2.300.0030.01416.44
7.2.290.0090.00916.69
7.2.130.0020.01017.05
7.2.120.0050.00816.76
7.2.110.0050.00816.98
7.2.100.0000.01316.97
7.2.90.0030.01216.70
7.2.80.0040.00916.97
7.2.70.0070.00516.89
7.2.60.0060.00716.72
7.2.50.0060.00816.81
7.2.40.0080.00717.01
7.2.30.0060.00616.88
7.2.20.0070.00917.03
7.2.10.0060.00617.04
7.2.00.0070.00716.91
7.1.250.0030.01015.78
7.1.200.0030.01015.77
7.1.70.0070.01317.30
7.1.60.0280.01434.75
7.1.50.0280.01434.89
7.1.40.0320.01034.25
7.1.30.0320.01034.45
7.1.20.0270.01534.72
7.1.10.0030.01316.57
7.1.00.0120.00616.82
7.0.200.0080.01216.79
7.0.190.0080.01116.86
7.0.180.0140.00716.18
7.0.170.0040.01616.37
7.0.160.0120.00916.27
7.0.150.0060.00916.15
7.0.140.0090.00616.20
7.0.130.0090.00616.56
7.0.120.0090.00616.61
7.0.110.0090.00716.14
7.0.100.0090.00616.39
7.0.90.0080.00816.42
7.0.80.0110.00716.18
7.0.70.0120.00516.28
7.0.60.0060.00916.17
7.0.50.0030.01416.33
7.0.40.0070.01016.46
7.0.30.0070.00716.46
7.0.20.0000.01716.51
7.0.10.0030.01216.63
7.0.00.0060.01216.68

preferences:
54.86 ms | 401 KiB | 5 Q