3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array ('backtrace', 'print'); array_walk($array, 'walk_callback', str_repeat("\0",31337)); function walk_callback($value, $key, $userdata) { if ($value == 'print') { print($userdata); exit("\n\n"); } elseif ($value == 'backtrace') { debug_backtrace(); if ($userdata !== str_repeat("\0",1337*1337)) { die("won't get here, \$userdata is still clean until we return"); } } }

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)
8.3.60.0140.00720.39
8.3.50.0090.01322.08
8.3.40.0130.00720.32
8.3.30.0070.01020.48
8.3.20.0040.00420.53
8.3.10.0080.00022.60
8.3.00.0000.00921.25
8.2.180.0140.01017.88
8.2.170.0030.01422.96
8.2.160.0070.01024.17
8.2.150.0030.00624.18
8.2.140.0030.00624.66
8.2.130.0090.00326.16
8.2.120.0030.00521.58
8.2.110.0040.00723.09
8.2.100.0060.00619.66
8.2.90.0060.00321.02
8.2.80.0030.00619.63
8.2.70.0090.00019.25
8.2.60.0040.00419.78
8.2.50.0030.00619.55
8.2.40.0040.00419.53
8.2.30.0040.00421.36
8.2.20.0080.00019.15
8.2.10.0030.00519.37
8.2.00.0040.00419.41
8.1.270.0030.00723.98
8.1.260.0050.00326.35
8.1.250.0000.00828.09
8.1.240.0060.00622.43
8.1.230.0040.00822.71
8.1.220.0000.00819.41
8.1.210.0030.00520.59
8.1.200.0070.00319.10
8.1.190.0000.00819.15
8.1.180.0030.00519.32
8.1.170.0040.00420.66
8.1.160.0030.00620.55
8.1.150.0040.00420.46
8.1.140.0090.00019.15
8.1.130.0000.00719.66
8.1.120.0030.00519.03
8.1.110.0030.00619.15
8.1.100.0080.00019.14
8.1.90.0000.00819.04
8.1.80.0000.00819.11
8.1.70.0030.00519.03
8.1.60.0100.00019.13
8.1.50.0040.00419.11
8.1.40.0000.00819.06
8.1.30.0040.00419.23
8.1.20.0000.00919.25
8.1.10.0000.00819.02
8.1.00.0040.00419.07
8.0.300.0070.00421.48
8.0.290.0040.00418.38
8.0.280.0000.00719.91
8.0.270.0000.00718.66
8.0.260.0050.00318.20
8.0.250.0040.00418.30
8.0.240.0100.00018.41
8.0.230.0080.00018.42
8.0.220.0050.00218.26
8.0.210.0040.00418.30
8.0.200.0000.00818.40
8.0.190.0040.00418.29
8.0.180.0040.00418.28
8.0.170.0060.00318.37
8.0.160.0040.00418.38
8.0.150.0000.00918.27
8.0.140.0070.00418.32
8.0.130.0070.00014.79
8.0.120.0000.00818.34
8.0.110.0000.00818.18
8.0.100.0000.00918.18
8.0.90.0000.00818.23
8.0.80.0070.01118.22
8.0.70.0060.00318.13
8.0.60.0000.00818.34
8.0.50.0030.00518.30
8.0.30.0150.00518.68
8.0.20.0120.00818.46
8.0.10.0090.00018.45
8.0.00.0150.00518.07
7.4.330.0060.00016.65
7.4.320.0000.00817.94
7.4.300.0030.00317.86
7.4.290.0030.00317.82
7.4.280.0030.00518.07
7.4.270.0040.00417.82
7.4.260.0000.00714.81
7.4.250.0000.00817.96
7.4.240.0040.00417.95
7.4.230.0050.00218.16
7.4.220.0100.00917.90
7.4.210.0100.00618.04
7.4.200.0050.00317.85
7.4.190.0040.00418.02
7.4.160.0060.01117.96
7.4.150.0220.00617.96
7.4.140.0170.00217.99
7.4.130.0110.00817.97
7.4.120.0110.00818.01
7.4.110.0160.00317.86
7.4.100.0140.01117.91
7.4.90.0140.00518.04
7.4.80.0120.00619.03
7.4.70.0150.00317.88
7.4.60.0090.00917.84
7.4.50.0030.00617.90
7.4.40.0030.01622.27
7.4.30.0150.00317.95
7.4.00.0040.01116.36
7.3.330.0000.00614.77
7.3.320.0000.00614.61
7.3.310.0000.00917.68
7.3.300.0030.00517.71
7.3.290.0030.01417.76
7.3.280.0090.01117.73
7.3.270.0130.00617.77
7.3.260.0120.01218.24
7.3.250.0080.01017.82
7.3.240.0070.01417.75
7.3.230.0140.00517.70
7.3.210.0110.00717.84
7.3.200.0110.01219.39
7.3.190.0130.01017.98
7.3.180.0090.00917.78
7.3.170.0090.00917.81
7.3.160.0100.01417.73
7.3.120.0110.00716.44
7.2.330.0090.00918.02
7.2.320.0070.01417.92
7.2.310.0040.01718.09
7.2.300.0170.00717.76
7.2.290.0090.00917.91
7.2.00.0080.00821.36
7.1.100.0040.00720.16
7.1.70.0050.00318.89
7.1.60.0030.01419.40
7.1.50.0090.00918.48
7.1.00.0000.08024.45
7.0.200.0050.00318.41
7.0.140.0000.07324.00
7.0.60.0000.06721.55
7.0.50.0100.05019.41
7.0.40.0130.07717.78
7.0.30.0070.08317.75
7.0.20.0030.07017.75
7.0.10.0070.08017.75
7.0.00.0030.08317.75
5.6.280.0070.07322.70
5.6.210.0100.07722.41
5.6.200.0100.04019.96
5.6.190.0170.07719.96
5.6.180.0100.04719.99
5.6.170.0230.06319.96
5.6.160.0000.08019.98
5.6.150.0100.05719.94
5.6.140.0100.07719.98
5.6.130.0170.07720.03
5.6.120.0000.05320.03
5.6.110.0170.07319.95
5.6.100.0070.07319.88
5.6.90.0070.07319.90
5.6.80.0170.07019.33
5.6.70.0070.07319.30
5.6.60.0130.05319.29
5.6.50.0100.04319.35
5.6.40.0100.06719.28
5.6.30.0100.08019.35
5.6.20.0070.07719.31
5.6.10.0030.08319.14
5.6.00.0100.06319.26
5.5.350.0130.05722.20
5.5.340.0100.07719.77
5.5.330.0100.06019.77
5.5.320.0130.05319.84
5.5.310.0170.04719.73
5.5.300.0130.06719.80
5.5.290.0000.06019.72
5.5.280.0100.06719.83
5.5.270.0070.08719.78
5.5.260.0170.07719.73
5.5.250.0030.05019.56
5.5.240.0130.07019.14
5.5.230.0100.08019.18
5.5.220.0070.05719.17
5.5.210.0070.07019.08
5.5.200.0030.04319.10
5.5.190.0070.05319.10
5.5.180.0070.04719.12
5.5.160.0070.06319.12
5.5.150.0100.08019.08
5.5.140.0100.07719.10
5.5.130.0100.05319.11
5.5.120.0100.04019.09
5.5.110.0100.04319.09
5.5.100.0070.04019.03
5.5.90.0130.05318.96
5.5.80.0000.08718.95
5.5.70.0070.05019.07
5.5.60.0100.04718.96
5.5.50.0000.04318.96
5.5.40.0070.07719.07
5.5.30.0100.07718.96
5.5.20.0100.07319.00
5.5.10.0100.07319.07
5.5.00.0130.07319.00
5.4.450.0130.05721.15
5.4.440.0070.04320.95
5.4.430.0100.07720.96
5.4.420.0100.05721.17
5.4.410.0030.05321.00
5.4.400.0000.04320.84
5.4.390.0100.07720.80
5.4.380.0070.07720.75
5.4.370.0030.07320.85
5.4.360.0030.06720.81
5.4.350.0170.05020.73
5.4.340.0070.05020.71
5.4.320.0100.04320.78
5.4.310.0070.05720.75
5.4.300.0030.04020.93
5.4.290.0070.05720.73
5.4.280.0100.07320.78
5.4.270.0070.04320.85
5.4.260.0100.06720.93
5.4.250.0070.07020.92
5.4.240.0130.07020.79
5.4.230.0100.05320.77
5.4.220.0030.05320.63
5.4.210.0170.06720.77
5.4.200.0100.06020.72
5.4.190.0200.06320.92
5.4.180.0070.06320.70
5.4.170.0070.08020.63
5.4.160.0070.07720.71
5.4.150.0130.07320.69
5.4.140.0070.05318.17
5.4.130.0070.07318.07
5.4.120.0070.07718.11
5.4.110.0000.04018.08
5.4.100.0030.04018.15
5.4.90.0070.03318.07
5.4.80.0030.03318.18
5.4.70.0030.03718.14
5.4.60.0070.03018.15
5.4.50.0030.03318.06
5.4.40.0130.03318.25
5.4.30.0100.02718.24
5.4.20.0100.03718.20
5.4.10.0000.03718.00
5.4.00.0030.03717.51
5.3.290.0100.07716.02
5.3.280.0000.08315.96
5.3.270.0070.05716.03
5.3.260.0170.06715.99
5.3.250.0070.08016.04
5.3.240.0100.06016.00
5.3.230.0130.07015.97
5.3.220.0000.06015.98
5.3.210.0030.05015.99
5.3.200.0070.03715.99
5.3.190.0030.04315.80
5.3.180.0100.03015.92
5.3.170.0070.03315.99
5.3.160.0030.03715.97
5.3.150.0030.03716.00
5.3.140.0030.04015.99
5.3.130.0030.04015.89
5.3.120.0030.03715.96
5.3.110.0000.04015.92
5.3.100.0070.03315.66
5.3.90.0030.03315.50
5.3.80.0030.04015.31
5.3.70.0030.03715.29
5.3.60.0030.03315.62
5.3.50.0100.03015.54
5.3.40.0030.03715.48
5.3.30.0000.03715.29
5.3.20.0100.02715.02
5.3.10.0000.03715.07
5.3.00.0000.04014.89
5.2.170.0100.02012.77
5.2.160.0030.02712.48
5.2.150.0100.02712.70
5.2.140.0030.02712.59
5.2.130.0070.02712.55
5.2.120.0000.03012.58
5.2.110.0030.03712.65
5.2.100.0030.02712.73
5.2.90.0000.03012.62
5.2.80.0000.03012.55
5.2.70.0000.03312.60
5.2.60.0070.02712.50
5.2.50.0000.03012.65
5.2.40.0030.02712.49
5.2.30.0030.02712.53
5.2.20.0030.02712.37
5.2.10.0000.03312.43
5.2.00.0000.03012.33
5.1.60.0070.02011.63
5.1.50.0100.01711.62
5.1.40.0000.03011.56
5.1.30.0100.01711.91
5.1.20.0030.03311.89
5.1.10.0170.03011.50
5.1.00.0030.06011.72
5.0.50.0000.0479.96
5.0.40.0100.0439.78
5.0.30.0100.0509.63
5.0.20.0030.0479.42
5.0.10.0100.0239.53
5.0.00.0030.0679.60
4.4.90.0000.0207.69
4.4.80.0030.0137.69
4.4.70.0030.0137.69
4.4.60.0030.0137.69
4.4.50.0030.0137.69
4.4.40.0000.0237.69
4.4.30.0000.0177.69
4.4.20.0000.0407.69
4.4.10.0030.0307.69
4.4.00.0000.0437.69
4.3.110.0030.0377.69
4.3.100.0130.0277.69
4.3.90.0030.0277.69
4.3.80.0070.0337.69
4.3.70.0000.0237.69
4.3.60.0030.0337.69
4.3.50.0130.0177.69
4.3.40.0070.0277.69
4.3.30.0000.0407.69
4.3.20.0000.0407.69
4.3.10.0000.0307.69
4.3.00.0030.0277.69

preferences:
86.6 ms | 400 KiB | 5 Q