3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (!defined('PHP_VERSION_ID')) { $version = explode('.', PHP_VERSION); define('PHP_VERSION_ID', ($version[0] * 10000 + $version[1] * 100 + $version[2])); } function a($depth = 0) { //return last backtrace call. If backtrace bigger then 3, return third call. if($depth === 1000) { if(PHP_VERSION_ID >= 50400) { return array_slice(array_filter(array_slice(debug_backtrace(~ DEBUG_BACKTRACE_PROVIDE_OBJECT & ~ DEBUG_BACKTRACE_IGNORE_ARGS, 3), 0, 3)), -1, 1); } elseif(PHP_VERSION_ID >= 50306) { return array_slice(array_filter(array_slice(debug_backtrace(~ DEBUG_BACKTRACE_PROVIDE_OBJECT), 0, 3)), -1, 1); } elseif(PHP_VERSION_ID >= 50101) { return array_slice(array_filter(array_slice(debug_backtrace(FALSE), 0, 3)), -1, 1); } else return array_slice(array_filter(array_slice(debug_backtrace(), 0, 3)), -1, 1); } return a(++$depth, str_repeat("a", 1000)); } 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)
8.3.40.0100.00720.29
8.3.30.0090.00920.63
8.3.20.0030.00621.79
8.3.10.0060.00324.00
8.3.00.0150.00024.39
8.2.170.0100.00622.96
8.2.160.0110.00423.05
8.2.150.0090.00024.18
8.2.140.0100.01024.66
8.2.130.0030.00726.16
8.2.120.0030.00621.21
8.2.110.0000.01122.00
8.2.100.0140.00019.41
8.2.90.0100.00020.75
8.2.80.0000.00919.25
8.2.70.0090.00018.88
8.2.60.0080.00019.43
8.2.50.0040.00419.00
8.2.40.0110.00022.21
8.2.30.0000.00819.55
8.2.20.0080.00019.10
8.2.10.0080.00019.22
8.2.00.0080.00019.21
8.1.270.0070.00323.85
8.1.260.0040.00426.35
8.1.250.0030.00628.09
8.1.240.0070.00424.37
8.1.230.0080.00419.39
8.1.220.0030.00619.05
8.1.210.0100.00018.86
8.1.200.0060.00618.85
8.1.190.0000.00918.86
8.1.180.0090.00018.73
8.1.170.0030.00620.09
8.1.160.0000.00823.78
8.1.150.0080.00020.07
8.1.140.0040.00418.99
8.1.130.0040.00419.40
8.1.120.0040.00419.01
8.1.110.0040.00418.89
8.1.100.0020.00519.00
8.1.90.0000.00919.02
8.1.80.0070.00018.93
8.1.70.0060.00318.98
8.1.60.0030.00619.16
8.1.50.0000.00919.15
8.1.40.0000.00819.08
8.1.30.0040.00419.17
8.1.20.0040.00419.09
8.1.10.0030.00519.17
8.1.00.0030.00719.08
8.0.300.0030.00518.77
8.0.290.0000.00818.25
8.0.280.0040.00419.86
8.0.270.0000.00818.66
8.0.260.0060.00618.30
8.0.250.0000.00918.50
8.0.240.0000.00718.40
8.0.230.0030.00718.52
8.0.220.0000.00718.43
8.0.210.0050.00218.31
8.0.200.0060.00318.39
8.0.190.0140.00618.45
8.0.180.0000.00818.46
8.0.170.0060.00318.42
8.0.160.0040.00418.45
8.0.150.0080.00018.27
8.0.140.0050.00318.40
8.0.130.0000.00614.83
8.0.120.0030.00618.38
8.0.110.0000.00818.30
8.0.100.0030.00518.50
8.0.90.0040.00418.22
8.0.80.0090.00918.48
8.0.70.0040.00418.34
8.0.60.0000.00818.40
8.0.50.0000.00818.50
8.0.30.0140.01118.51
8.0.20.0080.01318.67
8.0.10.0080.00018.52
8.0.00.0120.01118.44
7.4.330.0030.00317.00
7.4.320.0040.00418.05
7.4.300.0030.00318.15
7.4.290.0070.00018.23
7.4.280.0000.00718.04
7.4.270.0040.00418.13
7.4.260.0040.00418.07
7.4.250.0030.00518.05
7.4.240.0050.00318.04
7.4.230.0040.00418.18
7.4.220.0060.01518.03
7.4.210.0120.00718.12
7.4.200.0000.00818.25
7.4.190.0080.00018.21
7.4.160.0070.01718.04
7.4.150.0110.01118.00
7.4.140.0110.01118.11
7.4.130.0090.01218.15
7.4.120.0060.01518.13
7.4.110.0080.01117.83
7.4.100.0160.00718.20
7.4.90.0030.02418.22
7.4.80.0130.01319.39
7.4.70.0100.01318.07
7.4.60.0150.00418.27
7.4.50.0030.00618.04
7.4.40.0130.00722.77
7.4.30.0140.00518.08
7.4.00.0060.01116.53
7.3.330.0000.00614.85
7.3.320.0000.00714.78
7.3.310.0070.00017.94
7.3.300.0020.00517.84
7.3.290.0030.01317.88
7.3.280.0080.00917.99
7.3.270.0100.01017.90
7.3.260.0150.00618.15
7.3.250.0130.00817.97
7.3.240.0110.01518.14
7.3.230.0200.00017.88
7.3.210.0150.00618.11
7.3.200.0190.00419.39
7.3.190.0140.01017.86
7.3.180.0130.00618.11
7.3.170.0070.01118.00
7.3.160.0250.00017.98
7.3.120.0070.01216.48
7.3.110.0080.00916.37
7.3.100.0060.00916.46
7.3.90.0080.00916.53
7.3.80.0130.00316.38
7.3.70.0050.01316.38
7.3.60.0060.01016.29
7.3.50.0080.00616.49
7.3.40.0060.00816.41
7.3.30.0060.00916.41
7.3.20.0030.00918.56
7.3.10.0070.00818.71
7.3.00.0070.00818.57
7.2.330.0140.00718.40
7.2.320.0190.00318.14
7.2.310.0130.00618.33
7.2.300.0120.00618.34
7.2.290.0120.00618.12
7.2.250.0150.00616.57
7.2.240.0070.01216.65
7.2.230.0080.00816.69
7.2.220.0120.00516.69
7.2.210.0050.00816.37
7.2.200.0060.00816.61
7.2.190.0060.01216.66
7.2.180.0080.00716.72
7.2.170.0070.00716.51
7.2.160.0100.00716.62
7.2.150.0000.01618.88
7.2.140.0060.00818.91
7.2.130.0090.00818.85
7.2.120.0020.01218.78
7.2.110.0050.01218.78
7.2.100.0110.00718.76
7.2.90.0110.00918.80
7.2.80.0160.00518.97
7.2.70.0140.00618.79
7.2.60.0080.00918.83
7.2.50.0100.01018.67
7.2.40.0120.00618.70
7.2.30.0140.00618.86
7.2.20.0050.01518.95
7.2.10.0130.00718.71
7.2.00.0090.00719.42
7.1.330.0030.01415.87
7.1.320.0060.00615.60
7.1.310.0020.00815.64
7.1.300.0050.01115.82
7.1.290.0030.00715.91
7.1.280.0070.00715.56
7.1.270.0050.00715.87
7.1.260.0060.00915.90
7.1.250.0050.00415.61
7.1.200.0110.00715.59
7.1.100.0070.00718.34
7.1.70.0030.00917.02
7.1.60.0100.01319.82
7.1.50.0220.01334.90
7.1.00.0070.07322.43
7.0.200.0020.00516.46
7.0.140.0070.06722.01
7.0.60.0070.09021.50
7.0.50.0130.07319.53
7.0.40.0000.04720.18
7.0.30.0430.06720.39
7.0.20.0200.03720.12
7.0.10.0170.07020.05
7.0.00.0070.05720.18
5.6.280.0070.06723.25
5.6.210.0070.05322.75
5.6.200.0030.04720.27
5.6.190.0070.04322.50
5.6.180.3470.02722.46
5.6.170.0100.04722.48
5.6.160.0030.06322.48
5.6.150.0030.08320.27
5.6.140.0030.07720.23
5.6.130.0030.05720.30
5.6.120.0100.08323.13
5.6.110.0000.06723.21
5.6.100.0130.08323.13
5.6.90.0030.06023.14
5.6.80.0130.04722.55
5.5.350.0100.08022.54
5.5.340.0170.07720.10
5.5.330.0030.04322.12
5.5.320.0230.08022.25
5.5.310.0300.07022.30
5.5.300.0100.03720.15
5.5.290.0130.05720.03
5.5.280.0100.08022.76
5.5.270.0100.04022.97
5.5.260.0100.04022.87
5.5.250.0130.04722.70
5.5.240.0070.07322.39
5.4.450.0430.07021.18
5.4.440.0700.06021.49
5.4.430.0530.05021.49
5.4.420.0600.05321.49
5.4.410.0570.05721.07
5.4.400.0970.00020.82
5.4.390.1100.00020.59
5.4.380.0300.05020.83
5.4.370.0270.05320.70
5.4.360.0200.06720.56
5.4.350.0170.06320.67
5.4.340.0270.05720.65
5.4.320.0100.03314.59
5.4.310.0040.04014.59
5.4.300.0090.04614.60
5.4.290.0080.04514.59
5.4.280.0060.04914.49
5.4.270.0100.04014.49
5.4.260.0070.05320.98
5.4.250.0200.04720.91
5.4.240.0270.04020.77
5.4.230.0130.05020.96
5.4.220.0070.07720.67
5.4.210.0070.05720.80
5.4.200.0030.05720.77
5.4.190.0170.06321.04
5.4.180.0100.07720.84
5.4.170.0130.05320.95
5.4.160.0200.05320.65
5.4.150.0100.07020.90
5.4.140.0130.05018.52
5.4.130.0130.07018.54
5.4.120.0230.05718.51
5.4.110.0070.05318.51
5.4.100.0230.05018.53
5.4.90.0000.06018.43
5.4.80.0030.07318.63
5.4.70.0130.06018.46
5.4.60.0030.05318.47
5.4.50.0030.07018.59
5.4.40.0100.05018.58
5.4.30.0130.05718.36
5.4.20.0100.04718.51
5.4.10.0070.05318.49
5.4.00.0100.06717.85
5.3.290.0060.05115.55
5.3.280.0130.05017.45
5.3.270.0070.07317.43
5.3.260.0170.04717.39
5.3.250.0070.07317.15
5.3.240.0100.06717.27
5.3.230.0170.07017.35
5.3.220.0070.05717.42
5.3.210.0100.05317.31
5.3.200.0070.08017.35
5.3.190.0170.05017.23
5.3.180.0070.05317.26
5.3.170.0170.04317.34
5.3.160.0100.07717.25
5.3.150.0070.06017.39
5.3.140.0070.05717.29
5.3.130.0030.06317.40
5.3.120.0130.08017.36
5.3.110.0000.09017.35
5.3.100.0170.04316.79
5.3.90.0030.06716.60
5.3.80.0100.07316.71
5.3.70.0100.05016.81
5.3.60.0130.04716.43
5.3.50.0100.05717.42
5.3.40.0200.05317.48
5.3.30.0170.06717.45
5.3.20.0130.06717.05
5.3.10.0170.05017.02
5.3.00.0030.07016.85
5.2.170.0030.07015.30
5.2.160.0130.06015.21
5.2.150.0130.06015.21
5.2.140.0130.04015.29
5.2.130.0100.06715.16
5.2.120.0070.04315.26
5.2.110.0100.06315.35
5.2.100.0100.05015.15
5.2.90.0130.03715.14
5.2.80.0100.04315.30
5.2.70.0100.06315.25
5.2.60.0130.03715.25
5.2.50.0100.04315.04
5.2.40.0230.04313.95
5.2.30.0070.06013.74
5.2.20.0000.05313.61
5.2.10.0100.04713.68
5.2.00.0070.05013.57
5.1.60.0070.04013.32
5.1.50.0100.04713.46
5.1.40.0100.04313.21
5.1.30.0070.04013.77
5.1.20.0100.05313.81
5.1.10.0100.04313.61
5.1.00.0070.04014.93
5.0.50.0030.03713.66
5.0.40.0030.03713.35
5.0.30.0200.05713.17
5.0.20.0070.04713.39
5.0.10.0030.04713.11
5.0.00.0070.05713.18
4.4.90.0070.02713.73
4.4.80.0000.03013.68
4.4.70.0070.03013.73
4.4.60.0100.02313.63
4.4.50.0100.02313.72
4.4.40.0100.05013.73
4.4.30.0070.02713.73
4.4.20.0130.03013.75
4.4.10.0130.03713.69
4.4.00.0070.04313.88
4.3.110.0030.04011.80
4.3.100.0070.03711.89
4.3.90.0100.03311.88
4.3.80.0100.04311.76
4.3.70.0000.03311.87
4.3.60.0030.04311.85
4.3.50.0170.03011.85
4.3.40.0100.04311.57
4.3.30.0100.02710.48
4.3.20.0130.01712.50
4.3.10.0130.02010.35
4.3.00.0170.02310.25

preferences:
39.85 ms | 400 KiB | 5 Q