3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (!function_exists('cd')) { function cd($var) { var_dump($var); } } function corban_error_handler($errno , $errstr, $errfile) { echo '<pre>'; print_r(debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS)); echo '</pre>'; cd($errno); cd($errstr); cd($errfile); return false; } set_error_handler ('corban_error_handler', E_NOTICE); $b = null; cd($a); cd($b);

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)
8.3.60.0030.01118.25
8.3.50.0070.01122.11
8.3.40.0140.00318.75
8.3.30.0140.00319.14
8.3.20.0040.00420.28
8.3.10.0000.00721.75
8.3.00.0080.00017.93
8.2.180.0090.00616.50
8.2.170.0120.00322.96
8.2.160.0070.00720.38
8.2.150.0070.00024.18
8.2.140.0070.00024.66
8.2.130.0110.00726.16
8.2.120.0060.00321.05
8.2.110.0050.00522.25
8.2.100.0090.00317.78
8.2.90.0040.00419.01
8.2.80.0030.00517.97
8.2.70.0050.00317.50
8.2.60.0000.00817.92
8.2.50.0030.00618.07
8.2.40.0040.00418.16
8.2.30.0000.00718.14
8.2.20.0000.00817.82
8.2.10.0000.00818.02
8.2.00.0000.00717.82
8.1.280.0100.00725.92
8.1.270.0060.00323.75
8.1.260.0030.00626.35
8.1.250.0040.00428.09
8.1.240.0040.00423.98
8.1.230.0080.00419.16
8.1.220.0030.00617.76
8.1.210.0030.00918.77
8.1.200.0030.00617.36
8.1.190.0060.00317.22
8.1.180.0040.00418.10
8.1.170.0000.00818.54
8.1.160.0070.00021.95
8.1.150.0050.00318.94
8.1.140.0000.00717.44
8.1.130.0030.00317.85
8.1.120.0040.00417.48
8.1.110.0000.00717.50
8.1.100.0030.00317.38
8.1.90.0000.00717.44
8.1.80.0040.00417.37
8.1.70.0040.00417.35
8.1.60.0070.00017.64
8.1.50.0030.00517.42
8.1.40.0000.00817.43
8.1.30.0030.00517.57
8.1.20.0000.00717.73
8.1.10.0030.00517.33
8.1.00.0050.00317.37
8.0.300.0000.00918.77
8.0.290.0090.00016.75
8.0.280.0030.00318.50
8.0.270.0040.00417.28
8.0.260.0040.00417.17
8.0.250.0040.00416.90
8.0.240.0030.00317.11
8.0.230.0070.00017.07
8.0.220.0030.00316.98
8.0.210.0030.00316.96
8.0.200.0030.00316.99
8.0.190.0070.00016.98
8.0.180.0000.00716.95
8.0.170.0050.00216.94
8.0.160.0000.00816.99
8.0.150.0060.00316.87
8.0.140.0000.00716.91
8.0.130.0050.00013.33
8.0.120.0040.00416.81
8.0.110.0040.00416.99
8.0.100.0040.00416.84
8.0.90.0040.00417.00
8.0.80.0110.00417.02
8.0.70.0040.00416.84
8.0.60.0000.00716.82
8.0.50.0040.00416.87
8.0.30.0150.00717.08
8.0.20.0080.01117.40
8.0.10.0040.00416.96
8.0.00.0070.01016.87
7.4.330.0050.00015.08
7.4.320.0060.00016.66
7.4.300.0060.00016.62
7.4.290.0060.00316.62
7.4.280.0030.00316.52
7.4.270.0030.00316.57
7.4.260.0060.00316.61
7.4.250.0000.00816.33
7.4.240.0020.00516.56
7.4.230.0030.00316.36
7.4.220.0090.00916.45
7.4.210.0040.01116.55
7.4.200.0030.00316.71
7.4.160.0080.00816.60
7.4.150.0060.01217.40
7.4.140.0090.00917.86
7.4.130.0080.00816.48
7.4.120.0110.00616.58
7.4.110.0090.00916.62
7.4.100.0100.00716.52
7.4.90.0110.00716.60
7.4.80.0050.01419.39
7.4.70.0130.00316.36
7.4.60.0200.00316.38
7.4.50.0000.00716.45
7.4.40.0110.00516.62
7.4.30.0060.01016.53
7.4.00.0070.00715.11
7.3.330.0000.00513.21
7.3.320.0000.00513.38
7.3.310.0000.00616.18
7.3.300.0000.00716.32
7.3.290.0000.01416.28
7.3.280.0100.00816.29
7.3.270.0070.01017.40
7.3.260.0060.01716.52
7.3.250.0060.01016.49
7.3.240.0070.01316.50
7.3.230.0090.00916.39
7.3.210.0030.01416.42
7.3.200.0060.00919.39
7.3.190.0040.01316.61
7.3.180.0070.01016.29
7.3.170.0090.01216.57
7.3.160.0200.00016.40
7.3.120.0070.01014.77
7.2.330.0110.00816.71
7.2.320.0120.00616.69
7.2.310.0090.00916.30
7.2.300.0030.01716.14
7.2.290.0120.00616.68
7.2.00.0100.00319.53
7.1.100.0040.00717.81
7.1.70.0040.00417.31
7.1.60.0100.01419.25
7.1.50.0100.01416.59
7.1.00.0030.07722.32
7.0.200.0030.00316.77
7.0.140.0000.07722.11
7.0.60.0070.06720.04
7.0.50.0130.07717.84
7.0.40.0070.05720.23
7.0.30.0200.04320.16
7.0.20.0330.08320.16
7.0.10.0070.07320.07
7.0.00.0070.04020.32
5.6.280.0030.07321.15
5.6.210.0170.07320.57
5.6.200.0070.06718.19
5.6.190.0100.08320.48
5.6.180.0270.08020.46
5.6.170.0200.07320.39
5.6.160.0030.08320.61
5.6.150.0070.05018.28
5.6.140.0130.08318.18
5.6.130.0270.06018.17
5.6.120.0030.07021.02
5.6.110.0070.04020.96
5.6.100.0100.08020.95
5.6.90.0070.04320.95
5.6.80.0100.08320.36
5.5.350.0230.04320.41
5.5.340.0030.04017.99
5.5.330.0030.04720.37
5.5.320.0200.04320.27
5.5.310.0300.06020.30
5.5.300.0130.07717.95
5.5.290.0030.08317.98
5.5.280.0070.04020.88
5.5.270.0230.07020.89
5.5.260.0070.08720.73
5.5.250.0100.08020.66
5.5.240.0070.07320.26
5.4.450.0170.04719.41
5.4.440.0400.04719.54
5.4.430.0370.04719.56
5.4.420.0430.04019.41
5.4.410.0500.04319.41
5.4.400.0400.03319.09
5.4.390.0600.04018.95
5.4.380.0500.06718.63
5.4.370.0300.06318.75
5.4.360.0370.05018.63
5.4.350.0400.05718.79
5.4.340.0400.05318.79
5.4.320.0060.03712.51
5.4.310.0060.03912.50
5.4.300.0090.04012.50
5.4.290.0070.03712.50
5.4.280.0060.03412.40
5.4.270.0070.04712.40
5.4.260.0090.03912.40
5.4.250.0090.03512.40
5.4.240.0060.03812.40
5.4.230.0060.04712.39
5.4.220.0080.04112.39
5.4.210.0110.03612.39
5.4.200.0090.03912.39
5.4.190.0090.03412.38
5.4.180.0060.03712.38
5.4.170.0070.03612.39
5.4.160.0100.03212.39
5.4.150.0070.03612.39
5.4.140.0060.03712.07
5.4.130.0080.03512.06
5.4.120.0070.03512.02
5.4.110.0100.03212.01
5.4.100.0070.04112.01
5.4.90.0080.03612.01
5.4.80.0120.03212.01
5.4.70.0100.03712.01
5.4.60.0070.03512.01
5.4.50.0080.03512.01
5.4.40.0060.03912.00
5.4.30.0050.03811.99
5.4.20.0100.03211.99
5.4.10.0080.03311.99
5.4.00.0080.03411.48
5.3.290.0040.04112.80
5.3.280.0080.03712.71
5.3.270.0090.03912.72
5.3.260.0070.03912.72
5.3.250.0100.03412.72
5.3.240.0090.04512.71
5.3.230.0050.04012.71
5.3.220.0040.04012.68
5.3.210.0060.04012.68
5.3.200.0070.03612.68
5.3.190.0050.03912.68
5.3.180.0110.04912.67
5.3.170.0110.04712.67
5.3.160.0160.02912.67
5.3.150.0110.03312.67
5.3.140.0080.03512.66
5.3.130.0090.03712.66
5.3.120.0060.04512.66
5.3.110.0090.03812.66
5.3.100.0050.03912.12
5.3.90.0120.03112.11
5.3.80.0050.03812.09
5.3.70.0090.04512.09
5.3.60.0090.03512.08
5.3.50.0170.03712.03
5.3.40.0110.04112.03
5.3.30.0170.04111.99
5.3.20.0120.04811.77
5.3.10.0090.04511.73
5.3.00.0080.03711.72
5.2.170.0080.0299.23
5.2.160.0120.0289.22
5.2.150.0150.0359.22
5.2.140.0080.0309.22
5.2.130.0070.0299.18
5.2.120.0130.0299.18
5.2.110.0100.0309.19
5.2.100.0060.0359.18
5.2.90.0070.0349.18
5.2.80.0090.0379.18
5.2.70.0100.0329.18
5.2.60.0140.0279.14
5.2.50.0090.0349.10
5.2.40.0070.0289.07
5.2.30.0080.0279.05
5.2.20.0080.0269.04
5.2.10.0050.0288.94
5.2.00.0050.0298.81
5.1.60.0060.0278.10
5.1.50.0060.0228.09
5.1.40.0040.0258.07
5.1.30.0100.0218.42
5.1.20.0060.0258.44
5.1.10.0020.0288.17
5.1.00.0110.0198.16
5.0.50.0060.0186.65
5.0.40.0040.0196.50
5.0.30.0030.0376.32
5.0.20.0030.0216.29
5.0.10.0040.0196.26
5.0.00.0040.0326.25
4.4.90.0010.0234.78
4.4.80.0040.0214.76
4.4.70.0040.0164.75
4.4.60.0040.0204.76
4.4.50.0030.0184.77
4.4.40.0030.0284.71
4.4.30.0030.0164.76
4.4.20.0040.0144.84
4.4.10.0020.0174.85
4.4.00.0040.0244.76
4.3.110.0020.0164.67
4.3.100.0040.0144.67
4.3.90.0040.0174.63
4.3.80.0020.0254.59
4.3.70.0020.0154.63
4.3.60.0050.0184.63
4.3.50.0040.0204.63
4.3.40.0040.0304.54
4.3.30.0030.0153.31
4.3.20.0040.0193.29
4.3.10.0060.0133.25
4.3.00.0230.01715.25

preferences:
49.89 ms | 401 KiB | 5 Q