3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [0]; foreach ($array as &$val) { var_dump($val); $array[1] = 1; }

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)
8.3.70.0160.00318.18
8.3.60.0100.01016.38
8.3.50.0130.00621.97
8.3.40.0030.01218.71
8.3.30.0110.00318.49
8.3.20.0000.00820.16
8.3.10.0070.00023.54
8.3.00.0080.00023.62
8.2.180.0060.00916.38
8.2.170.0040.01122.96
8.2.160.0090.00620.39
8.2.150.0030.01324.18
8.2.140.0040.00424.66
8.2.130.0050.00220.69
8.2.120.0100.00726.35
8.2.110.0000.00920.93
8.2.100.0000.01118.03
8.2.90.0030.00519.14
8.2.80.0080.00017.97
8.2.70.0030.00517.63
8.2.60.0030.00518.03
8.2.50.0050.00318.10
8.2.40.0000.00720.50
8.2.30.0040.00419.55
8.2.20.0000.00817.80
8.2.10.0000.00718.07
8.2.00.0030.00318.11
8.1.280.0040.01525.92
8.1.270.0140.00422.05
8.1.260.0120.00628.09
8.1.250.0090.00028.09
8.1.240.0030.00621.24
8.1.230.0100.00317.77
8.1.220.0040.00417.77
8.1.210.0030.00618.77
8.1.200.0060.00317.25
8.1.190.0000.00817.22
8.1.180.0000.00818.10
8.1.170.0050.00318.48
8.1.160.0050.00220.68
8.1.150.0070.00018.93
8.1.140.0030.00619.56
8.1.130.0070.00017.62
8.1.120.0090.00017.44
8.1.110.0000.00717.32
8.1.100.0070.00017.41
8.1.90.0040.00417.36
8.1.80.0080.00317.44
8.1.70.0000.00817.41
8.1.60.0030.00617.47
8.1.50.0060.00317.51
8.1.40.0030.00617.55
8.1.30.0040.00417.66
8.1.20.0040.00417.50
8.1.10.0070.00017.50
8.1.00.0000.00817.35
8.0.300.0000.00718.77
8.0.290.0000.00816.63
8.0.280.0020.00518.55
8.0.270.0030.00317.25
8.0.260.0000.00617.26
8.0.250.0000.00716.93
8.0.240.0040.00416.94
8.0.230.0030.00316.82
8.0.220.0040.00416.86
8.0.210.0000.00716.86
8.0.200.0090.00017.01
8.0.190.0050.00216.84
8.0.180.0040.00416.86
8.0.170.0040.00416.90
8.0.160.0000.00716.86
8.0.150.0000.00716.89
8.0.140.0000.00716.68
8.0.130.0000.00513.25
8.0.120.0000.00716.93
8.0.110.0040.00416.88
8.0.100.0070.00016.88
8.0.90.0050.00216.93
8.0.80.0090.00616.88
8.0.70.0000.00716.88
8.0.60.0040.00416.91
8.0.50.0060.00316.86
8.0.30.0120.00617.17
8.0.20.0110.00717.40
8.0.10.0030.00517.04
8.0.00.0120.00616.70
7.4.330.0050.00016.73
7.4.320.0040.00416.60
7.4.300.0080.00016.49
7.4.290.0000.00716.61
7.4.280.0060.00016.45
7.4.270.0000.00716.44
7.4.260.0000.00716.61
7.4.250.0000.00716.45
7.4.240.0030.00316.57
7.4.230.0050.00216.61
7.4.220.0090.01216.70
7.4.210.0020.01516.56
7.4.200.0000.00816.67
7.4.160.0000.01716.43
7.4.150.0080.00917.40
7.4.140.0250.01017.86
7.4.130.0100.00916.56
7.4.120.0100.01016.46
7.4.110.0070.01016.35
7.4.100.0070.01016.59
7.4.90.0120.00516.58
7.4.80.0130.01219.39
7.4.70.0030.01316.50
7.4.60.0110.00816.53
7.4.50.0100.00716.23
7.4.40.0070.01016.52
7.4.30.0130.01016.61
7.4.00.0100.00814.91
7.3.330.0000.00713.15
7.3.320.0060.00013.21
7.3.310.0050.00216.33
7.3.300.0020.00516.16
7.3.290.0030.00316.32
7.3.280.0060.01316.33
7.3.270.0140.00417.40
7.3.260.0110.00516.52
7.3.250.0110.00616.30
7.3.240.0140.00716.31
7.3.230.0100.01016.39
7.3.210.0120.00816.27
7.3.200.0150.01019.39
7.3.190.0090.00616.43
7.3.180.0100.00716.40
7.3.170.0060.01016.35
7.3.160.0130.00616.34
7.3.120.0130.00614.94
7.3.110.0040.01214.84
7.3.100.0030.01014.82
7.3.90.0070.00714.88
7.3.80.0040.01114.55
7.3.70.0040.00714.76
7.3.60.0000.01414.70
7.3.50.0060.00314.77
7.3.40.0100.00314.77
7.3.30.0120.00314.95
7.3.20.0110.00316.62
7.3.10.0080.00816.51
7.3.00.0060.00916.57
7.2.330.0070.01016.63
7.2.320.0140.00416.35
7.2.310.0000.01616.39
7.2.300.0100.00616.79
7.2.290.0130.00716.71
7.2.250.0110.00714.88
7.2.240.0070.01414.73
7.2.230.0070.01015.12
7.2.220.0040.01115.15
7.2.210.0090.00914.93
7.2.200.0040.01115.09
7.2.190.0040.00714.58
7.2.180.0030.01114.73
7.2.170.0070.00714.95
7.2.60.0000.01316.66
7.2.00.0000.01019.38
7.1.330.0110.00415.78
7.1.320.0000.01015.95
7.1.310.0100.00315.73
7.1.300.0030.01015.71
7.1.290.0070.00315.66
7.1.280.0080.00415.75
7.1.270.0100.00015.68
7.1.260.0060.00615.95
7.1.200.0030.00715.75
7.1.100.0030.01317.79
7.1.70.0040.01217.28
7.1.60.0070.01719.40
7.1.50.0070.01016.99
7.1.00.0100.07022.54
7.0.200.0570.00614.69
7.0.60.0370.07320.03
7.0.50.0070.08017.82
7.0.40.0070.05320.03
7.0.30.0370.08020.20
7.0.20.0270.04720.12
7.0.10.0100.08020.16
7.0.00.0070.08320.16
5.6.280.0030.07020.86
5.6.210.0170.07020.52
5.6.200.0070.08318.21
5.6.190.0030.04320.41
5.6.180.0200.04320.77
5.6.170.0430.06320.61
5.6.160.0070.03720.49
5.6.150.0000.04718.21
5.6.140.0000.08718.17
5.6.130.0100.05018.11
5.6.120.0030.06021.14
5.6.110.0030.07721.00
5.6.100.0130.07321.02
5.6.90.0100.08021.07
5.6.80.0030.08720.52
5.5.350.0300.05020.39
5.5.340.0070.03718.04
5.5.330.0170.08320.40
5.5.320.0670.05720.26
5.5.310.0230.04720.50
5.5.300.0030.06317.96
5.5.290.0100.07317.96
5.5.280.0130.05720.73
5.5.270.0100.08720.75
5.5.260.0100.08720.83
5.5.250.0170.07020.68
5.5.240.0270.07020.18

preferences:
54.76 ms | 401 KiB | 5 Q