3v4l.org

run code in 300+ PHP versions simultaneously
<?php function formatMemoryUsage($usage) { $unit = array(' B', 'kB', 'MB', 'GB', 'TB'); $factor = floor((strlen($usage) - 1) / 3); return sprintf('%.2f %s (%d bytes) ', $usage / pow(1024, $factor), $unit[$factor], $usage); } for($size = 1000; $size < 100000; $size *= 2) { echo PHP_EOL . '> Testing size: ' . number_format($size) . PHP_EOL; echo ' Array()' . PHP_EOL; for($s = microtime(true), $m = memory_get_usage(true), $container = Array(), $i = 0; $i < $size; $i++) $container[$i] = null; echo ' - Write - time : ' . str_pad(microtime(true) - $s, 20, '0') . ' - memory: ' . formatMemoryUsage(memory_get_usage(true) - $m) . PHP_EOL; $s = microtime(true); foreach ($container as $key => $value) { $void = $value; } echo ' - Read - time : ' . str_pad(microtime(true) - $s, 20, '0') . PHP_EOL; unset($container); echo ' SplFixedArray()' . PHP_EOL; for($s = microtime(true), $m = memory_get_usage(true), $container = new SplFixedArray($size), $i = 0; $i < $size; $i++) $container[$i] = null; echo ' - Write - time : ' . str_pad(microtime(true) - $s, 20, '0') . ' - memory: ' . formatMemoryUsage(memory_get_usage(true) - $m) . PHP_EOL; $s = microtime(true); foreach ($container as $key => $value) { $void = $value; } echo ' - Read - time : ' . str_pad(microtime(true) - $s, 20, '0') . PHP_EOL; unset($container); }

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)
7.3.00.0130.01718.89
7.2.130.0100.02319.25
7.2.120.0100.01918.99
7.2.110.0090.01919.05
7.2.100.0040.02219.27
7.2.90.0060.01919.21
7.2.80.0070.02019.06
7.2.70.0030.02319.18
7.2.60.0090.02119.12
7.2.50.0060.01919.18
7.2.40.0030.02319.22
7.2.30.0100.01918.91
7.2.20.0070.02119.03
7.2.10.0120.01519.02
7.2.00.0070.02019.06
7.1.250.0030.03717.95
7.1.240.0060.03218.17
7.1.230.0030.03617.93
7.1.220.0160.02218.01
7.1.210.0100.02918.17
7.1.200.0130.02517.97
7.1.190.0070.03717.62
7.1.180.0070.03117.92
7.1.170.0030.03717.95
7.1.160.0070.02618.15
7.1.150.0070.03318.13
7.1.140.0030.03517.95
7.1.130.0070.03317.90
7.1.120.0030.03117.84
7.1.110.0070.03818.00
7.1.100.0100.02918.16
7.1.90.0120.02817.79
7.1.80.0060.03617.82
7.1.70.0080.02318.62
7.1.60.0100.03418.71
7.1.50.0030.03618.42
7.1.40.0000.04118.17
7.1.30.0030.03317.87
7.1.20.0030.03118.01
7.1.10.0060.02817.60
7.1.00.0060.03621.20
7.0.330.0060.03517.85
7.0.320.0060.03217.64
7.0.310.0000.03617.32
7.0.300.0030.02917.70
7.0.290.0100.02617.60
7.0.280.0030.03817.61
7.0.270.0100.03717.61
7.0.260.0040.03917.65
7.0.250.0030.03217.46
7.0.240.0030.03617.80
7.0.230.0040.03917.77
7.0.220.0070.03917.77
7.0.210.0030.03417.79
7.0.200.0130.02317.73
7.0.190.0030.04117.61
7.0.180.0060.03917.69
7.0.170.0030.03417.75
7.0.160.0030.02817.43
7.0.150.0060.03517.73
7.0.140.0030.06720.99
7.0.130.0060.03217.63
7.0.120.0090.02817.92
7.0.110.0070.03617.59
7.0.100.0000.04017.88
7.0.90.0070.03117.45
7.0.80.0000.03917.57
7.0.70.3150.03720.39
7.0.60.0110.05120.25
7.0.50.0080.06019.32
7.0.40.0050.04518.84
7.0.30.0220.05818.92
7.0.20.0220.06418.82
7.0.10.0200.05718.83
7.0.00.0060.04418.82
5.6.380.0100.08623.84
5.6.370.0070.07923.98
5.6.360.0130.07623.60
5.6.350.0070.08523.66
5.6.340.0200.07723.61
5.6.330.0170.07723.66
5.6.320.0160.07523.63
5.6.310.0100.08223.69
5.6.300.0070.08023.47
5.6.290.0100.08523.89
5.6.280.0130.10226.98
5.6.270.0100.08323.48
5.6.260.0070.08923.85
5.6.250.0130.07823.71
5.6.240.0070.08223.95
5.6.230.0200.07323.65
5.6.220.0270.06723.57
5.6.210.0130.10726.81
5.6.200.0080.08025.71
5.6.190.0050.09526.57
5.6.180.0190.08126.86
5.6.170.0200.08126.81
5.6.160.0120.10326.69
5.6.150.0080.08125.61
5.6.140.0070.08225.68
5.6.130.0070.07825.47
5.6.120.0130.10226.94
5.6.110.0150.10227.06
5.6.100.0100.07727.03
5.6.90.0070.08226.96
5.6.80.0130.10626.69
5.6.70.0130.07426.63
5.6.60.0070.09323.55
5.6.50.0000.08823.82
5.6.40.0030.11223.86
5.6.30.0100.07723.54
5.6.20.0070.09323.56
5.6.10.0130.08623.77
5.6.00.0070.09223.57
5.5.380.0070.08420.61
5.5.370.0100.08220.51
5.5.360.0070.08120.58
5.5.350.0100.11425.04
5.5.340.0100.08123.88
5.5.330.0080.08025.04
5.5.320.0080.10824.88
5.5.310.0270.08024.86
5.5.300.0120.09423.77
5.5.290.0050.08423.88
5.5.280.0100.10625.21
5.5.270.0190.09925.36
5.5.260.0100.10625.38
5.5.250.0150.10125.37
5.5.240.0080.10825.00
5.5.230.0070.08220.22
5.5.220.0030.08820.59
5.5.210.0100.07020.50
5.5.200.0000.09420.63
5.5.190.0170.07920.60
5.5.180.0100.08520.45
5.5.170.0170.07720.48
5.5.160.0070.08920.50
5.5.150.0170.08820.56
5.5.140.0170.07620.66
5.5.130.0030.08520.61
5.5.120.0100.07720.55
5.5.110.0100.09120.23
5.5.100.0100.08020.66
5.5.90.0100.07720.24
5.5.80.0100.07420.74
5.5.70.0100.08620.52
5.5.60.0170.07420.59
5.5.50.0100.08120.39
5.5.40.0100.07620.28
5.5.30.0070.08020.27
5.5.20.0030.08220.16
5.5.10.0070.10120.47
5.5.00.0100.08620.29
5.4.450.0330.10324.50
5.4.440.0470.09524.50
5.4.430.0480.10524.43
5.4.420.0450.11924.65
5.4.410.0500.10324.47
5.4.400.0470.09324.34
5.4.390.0480.10824.54
5.4.380.0170.09524.06
5.4.370.0150.07824.29
5.4.360.0100.09724.17
5.4.350.0090.08420.82
5.4.340.0070.08520.74
5.4.330.0070.08720.28
5.4.320.0080.09520.97
5.4.310.0080.08921.11
5.4.300.0110.08020.99
5.4.290.0090.09320.89
5.4.280.0120.09620.98
5.4.270.0100.07920.96
5.4.260.0030.08721.02
5.4.250.0130.07620.91
5.4.240.0100.10524.20
5.4.230.0130.12224.16
5.4.220.0180.12024.27
5.4.210.0150.11024.29
5.4.200.0200.11124.20
5.4.190.0100.10324.25
5.4.180.0170.11124.00
5.4.170.0130.09124.02
5.4.160.0130.09524.25
5.4.150.0100.13424.26
5.4.140.0150.12523.04
5.4.130.0150.10423.06
5.4.120.0100.10023.01
5.4.110.0150.11422.97
5.4.100.0100.09422.91
5.4.90.0150.11623.01
5.4.80.0120.09522.93
5.4.70.0150.09722.86
5.4.60.0070.13923.15
5.4.50.0120.10622.91
5.4.40.0080.10223.04
5.4.30.0120.09722.98
5.4.20.0100.12023.13
5.4.10.0100.10122.83
5.4.00.0120.11022.78
5.3.290.0120.08820.84
5.3.280.0200.12321.63
5.3.270.0080.13321.89
5.3.260.0130.11521.71
5.3.250.0100.11021.69
5.3.240.0130.13321.69
5.3.230.0120.11021.58
5.3.220.0120.10721.66
5.3.210.0120.14021.62
5.3.200.0080.14121.68
5.3.190.0070.13021.64
5.3.180.0150.10221.71
5.3.170.0180.09421.80
5.3.160.0150.10421.74
5.3.150.0080.11321.82
5.3.140.0130.11621.71
5.3.130.0080.10821.59
5.3.120.0120.10521.77
5.3.110.0150.12221.54
5.3.100.0070.11021.50
5.3.90.0080.10321.27
5.3.80.0200.10221.36
5.3.70.0100.11021.37
5.3.60.0120.11221.34
5.3.50.0170.13421.40
5.3.40.0130.10221.44
5.3.30.0100.10021.37
5.3.20.0030.10721.15
5.3.10.0150.12121.05
5.3.00.0110.10021.02
5.2.170.0050.02511.33
5.2.160.0030.03411.37
5.2.150.0030.02711.29
5.2.140.0050.02511.24
5.2.130.0090.02011.38
5.2.120.0090.01611.26
5.2.110.0020.02511.31
5.2.100.0030.02611.21
5.2.90.0020.03411.32
5.2.80.0080.02911.22
5.2.70.0110.02511.26
5.2.60.0110.02011.27
5.2.50.0060.02911.27
5.2.40.0080.02511.17
5.2.30.0090.02811.25
5.2.20.0050.01911.18
5.2.10.0070.03011.23
5.2.00.0030.02110.97
5.1.60.0050.02210.72
5.1.50.0030.02510.71
5.1.40.0020.01910.60
5.1.30.0070.01710.86
5.1.20.0030.02010.93
5.1.10.0060.01710.71
5.1.00.0090.01510.71
5.0.50.0060.0189.98
5.0.40.0020.0229.89
5.0.30.0010.0319.84
5.0.20.0070.0179.90
5.0.10.0120.0149.75
5.0.00.0000.0259.73
4.4.90.0000.0159.04
4.4.80.0020.0149.04
4.4.70.0060.0109.04
4.4.60.0020.0139.04
4.4.50.0020.0179.04
4.4.40.0020.0209.04
4.4.30.0030.0139.04
4.4.20.0020.0129.04
4.4.10.0050.0159.04
4.4.00.0020.0229.04
4.3.110.0020.0129.04
4.3.100.0020.0199.04
4.3.90.0030.0129.04
4.3.80.0030.0159.04
4.3.70.0020.0109.04
4.3.60.0020.0139.04
4.3.50.0000.0199.04
4.3.40.0000.0199.04
4.3.30.0000.0199.04
4.3.20.0000.0139.04
4.3.10.0020.0129.04
4.3.00.0080.0109.22

preferences:
36.6 ms | 401 KiB | 5 Q