3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('a', 'b'); //&$a reference = problem foreach ($arr as &$a) { var_dump($a); } foreach ($arr as $a) { var_dump($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)
8.3.60.0070.00718.30
8.3.50.0130.00822.04
8.3.40.0150.00618.77
8.3.30.0040.01118.96
8.3.20.0000.00920.14
8.3.10.0080.00020.48
8.3.00.0040.00419.25
8.2.180.0110.00718.16
8.2.170.0070.00722.96
8.2.160.0070.01020.35
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0040.00426.16
8.2.120.0040.00422.25
8.2.110.0060.00320.39
8.2.100.0040.00717.84
8.2.90.0000.00917.84
8.2.80.0000.00817.97
8.2.70.0050.00317.38
8.2.60.0030.00517.80
8.2.50.0040.00418.07
8.2.40.0040.00418.21
8.2.30.0050.00219.53
8.2.20.0030.00517.55
8.2.10.0030.00618.10
8.2.00.0060.00317.71
8.1.280.0100.01025.92
8.1.270.0000.00922.08
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00623.76
8.1.230.0060.00620.91
8.1.220.0080.00017.74
8.1.210.0040.00718.91
8.1.200.0060.00617.36
8.1.190.0050.00317.22
8.1.180.0040.00418.10
8.1.170.0060.00318.57
8.1.160.0040.00421.92
8.1.150.0040.00418.86
8.1.140.0030.00517.42
8.1.130.0070.00017.89
8.1.120.0000.00817.36
8.1.110.0000.00717.36
8.1.100.0040.00417.40
8.1.90.0030.00717.38
8.1.80.0000.00817.33
8.1.70.0080.00017.42
8.1.60.0030.00617.52
8.1.50.0080.00017.38
8.1.40.0090.00017.46
8.1.30.0000.00817.52
8.1.20.0020.00517.61
8.1.10.0060.00317.45
8.1.00.0030.00617.38
8.0.300.0020.00520.03
8.0.290.0070.00016.75
8.0.280.0000.00718.32
8.0.270.0050.00217.16
8.0.260.0070.00017.23
8.0.250.0030.00316.86
8.0.240.0000.00716.95
8.0.230.0040.00416.84
8.0.220.0030.00316.78
8.0.210.0030.00316.88
8.0.200.0030.00316.96
8.0.190.0000.00716.84
8.0.180.0040.00416.93
8.0.170.0050.00316.88
8.0.160.0040.00416.86
8.0.150.0070.00016.73
8.0.140.0040.00416.76
8.0.130.0030.00313.30
8.0.120.0040.00416.88
8.0.110.0050.00316.87
8.0.100.0030.00516.86
8.0.90.0040.00416.74
8.0.80.0050.01016.88
8.0.70.0000.00816.66
8.0.60.0030.00316.83
8.0.50.0000.00716.78
8.0.30.0080.01016.84
8.0.20.0090.00917.40
8.0.10.0000.00716.91
8.0.00.0120.00916.57
7.4.330.0050.00015.00
7.4.320.0060.00016.64
7.4.300.0060.00016.55
7.4.290.0070.00016.59
7.4.280.0030.00516.43
7.4.270.0070.00016.41
7.4.260.0070.00016.48
7.4.250.0000.00716.45
7.4.240.0020.00616.51
7.4.230.0070.00016.48
7.4.220.0120.00916.61
7.4.210.0090.00916.48
7.4.200.0030.00316.62
7.4.160.0200.00316.37
7.4.150.0090.01217.40
7.4.140.0100.01117.86
7.4.130.0080.01016.44
7.4.120.0050.01116.60
7.4.110.0160.00316.48
7.4.100.0070.01016.45
7.4.90.0110.00716.32
7.4.80.0060.01216.44
7.4.70.0150.00416.46
7.4.60.0130.00316.35
7.4.50.0050.00316.49
7.4.40.0000.01916.35
7.4.30.0070.01116.32
7.4.00.0050.01314.94
7.3.330.0000.00513.14
7.3.320.0070.00013.17
7.3.310.0000.00716.22
7.3.300.0000.00616.22
7.3.290.0090.00616.29
7.3.280.0070.01016.29
7.3.270.0030.01517.40
7.3.260.0130.00716.28
7.3.250.0080.01016.39
7.3.240.0100.00716.39
7.3.230.0050.01116.39
7.3.210.0060.00916.22
7.3.200.0130.00919.39
7.3.190.0180.00316.43
7.3.180.0030.01316.57
7.3.170.0090.00916.27
7.3.160.0120.00316.20
7.3.120.0030.01515.02
7.3.110.0060.00614.70
7.3.100.0060.00914.58
7.3.90.0030.01014.79
7.3.80.0070.00714.73
7.3.70.0000.01614.95
7.3.60.0080.00314.60
7.3.50.0030.00514.80
7.3.40.0070.00714.66
7.3.30.0030.00714.92
7.3.20.0070.00716.84
7.3.10.0050.00816.59
7.3.00.0030.01016.60
7.2.330.0140.00316.32
7.2.320.0130.00516.65
7.2.310.0040.01816.56
7.2.300.0100.00716.74
7.2.290.0090.01216.73
7.2.250.0070.01115.20
7.2.240.0070.01414.77
7.2.230.0060.01014.91
7.2.220.0030.00614.78
7.2.210.0030.00615.07
7.2.200.0000.01014.87
7.2.190.0090.00915.11
7.2.180.0040.00815.16
7.2.170.0120.00315.11
7.2.130.0080.00816.91
7.2.120.0040.01016.88
7.2.110.0110.00416.82
7.2.100.0080.00516.85
7.2.90.0070.00316.71
7.2.80.0030.01016.52
7.2.70.0060.00916.91
7.2.60.0070.00516.84
7.2.50.0040.01316.93
7.2.40.0000.01516.88
7.2.30.0100.00716.78
7.2.20.0110.00716.77
7.2.10.0030.00717.01
7.2.00.0030.00617.77
7.1.330.0130.00316.02
7.1.320.0040.01115.80
7.1.310.0060.00615.82
7.1.300.0080.00315.75
7.1.290.0040.01115.74
7.1.280.0000.01215.70
7.1.270.0040.01115.85
7.1.260.0060.00315.61
7.1.250.0040.00715.63
7.1.200.0080.00415.83
7.1.100.0080.00318.16
7.1.70.0030.00617.07
7.1.60.0080.01519.32
7.1.50.0070.01116.84
7.1.00.0070.07322.33
7.0.200.0670.00316.71
7.0.140.0000.07022.19
7.0.60.0130.08019.80
7.0.50.0070.05717.88
7.0.40.0100.08020.32
7.0.30.0530.07020.30
7.0.20.0170.04320.05
7.0.10.0070.07720.00
7.0.00.0100.06320.29
5.6.280.0000.07720.81
5.6.210.0070.08720.50
5.6.200.0100.08018.21
5.6.190.0000.04720.41
5.6.180.0300.04020.58
5.6.170.0230.07320.39
5.6.160.0000.04720.37
5.6.150.0030.04018.11
5.6.140.0030.06018.20
5.6.130.0030.08318.07
5.6.120.0130.07021.12
5.6.110.0100.08020.96
5.6.100.0030.06720.94
5.6.90.0200.07721.06
5.6.80.0070.07720.39
5.6.70.4370.03320.40
5.5.350.0230.07720.43
5.5.340.0100.07717.91
5.5.330.0100.08020.12
5.5.320.0130.05020.32
5.5.310.0230.05320.28
5.5.300.0100.07717.98
5.5.290.0070.07717.91
5.5.280.0070.08320.77
5.5.270.0030.04020.87
5.5.260.0130.07720.79
5.5.250.0070.07020.71
5.5.240.0230.08020.27
5.4.450.0200.04319.10
5.4.440.0230.03719.26
5.4.430.0370.04019.06
5.4.420.0400.03719.41
5.4.410.0370.04719.45
5.4.400.0670.03319.45
5.4.390.0300.04719.45
5.4.380.0300.05318.60
5.4.370.0230.05718.50
5.4.360.0130.06318.61
5.4.350.0200.06018.52
5.4.340.0300.05318.72
5.4.320.0080.03812.46
5.4.310.0080.03812.45
5.4.300.0070.04312.46
5.4.290.0040.04012.45
5.4.280.0080.03412.35
5.4.270.0080.04012.35
5.4.260.0070.04012.35
5.4.250.0060.03712.34
5.4.240.0100.04012.35
5.4.230.0050.04012.34
5.4.220.0070.03612.34
5.4.210.0090.03512.34
5.4.200.0040.04012.34
5.4.190.0040.03712.34
5.4.180.0070.03512.34
5.4.170.0070.03512.35
5.4.160.0050.03812.34
5.4.150.0060.03612.34
5.4.140.0060.03712.02
5.4.130.0030.03812.02
5.4.120.0050.03511.97
5.4.110.0080.03211.96
5.4.100.0090.03711.96
5.4.90.0090.03811.97
5.4.80.0070.04111.97
5.4.70.0060.04111.96
5.4.60.0040.04211.96
5.4.50.0100.03511.96
5.4.40.0100.03311.95
5.4.30.0090.03711.95
5.4.20.0060.03911.95
5.4.10.0060.03511.95
5.4.00.0080.03711.44
5.3.290.0070.03812.80
5.3.280.0060.04212.71
5.3.270.0070.03812.73
5.3.260.0070.04212.71
5.3.250.0070.03712.72
5.3.240.0070.04312.72
5.3.230.0080.04412.71
5.3.220.0050.04412.68
5.3.210.0080.03812.68
5.3.200.0090.03312.68
5.3.190.0080.04012.68
5.3.180.0100.03612.67
5.3.170.0080.03612.67
5.3.160.0040.04112.67
5.3.150.0070.03512.68
5.3.140.0050.03712.66
5.3.130.0040.04012.66
5.3.120.0080.03712.66
5.3.110.0050.03912.66
5.3.100.0060.03612.12
5.3.90.0070.03412.09
5.3.80.0070.03612.07
5.3.70.0070.03612.07
5.3.60.0040.03812.06
5.3.50.0060.04012.00
5.3.40.0050.03712.00
5.3.30.0090.03311.95
5.3.20.0060.03711.72
5.3.10.0060.03411.69
5.3.00.0060.03911.67
5.2.170.0060.0299.18
5.2.160.0060.0339.18
5.2.150.0060.0329.18
5.2.140.0050.0329.18
5.2.130.0040.0309.14
5.2.120.0050.0299.13
5.2.110.0050.0309.14
5.2.100.0030.0319.14
5.2.90.0030.0319.14
5.2.80.0040.0319.13
5.2.70.0060.0339.13
5.2.60.0020.0349.09
5.2.50.0030.0369.06
5.2.40.0060.0309.03
5.2.30.0060.0289.01
5.2.20.0040.0329.00
5.2.10.0080.0318.92
5.2.00.0060.0278.77
5.1.60.0050.0328.06
5.1.50.0050.0248.05
5.1.40.0050.0258.04
5.1.30.0050.0288.39
5.1.20.0020.0298.41
5.1.10.0020.0288.14
5.1.00.0070.0228.14
5.0.50.0050.0196.62
5.0.40.0040.0196.47
5.0.30.0030.0356.29
5.0.20.0020.0216.26
5.0.10.0010.0226.24
5.0.00.0060.0286.23
4.4.90.0030.0154.78
4.4.80.0010.0174.76
4.4.70.0050.0134.76
4.4.60.0030.0154.75
4.4.50.0040.0144.77
4.4.40.0020.0264.71
4.4.30.0050.0194.76
4.4.20.0020.0164.84
4.4.10.0020.0164.85
4.4.00.0040.0264.76
4.3.110.0010.0194.67
4.3.100.0010.0164.66
4.3.90.0030.0144.63
4.3.80.0030.0244.58
4.3.70.0020.0154.63
4.3.60.0020.0144.63
4.3.50.0030.0154.62
4.3.40.0010.0254.54
4.3.30.0010.0243.29
4.3.20.0030.0153.26
4.3.10.0030.0153.21
4.3.00.0170.01719.45

preferences:
41.94 ms | 401 KiB | 5 Q