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(), $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(), $container = new SplFixedArray($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); echo ' SplFixedArray()' . PHP_EOL; for($s = microtime(true), $m = memory_get_usage(), $container = new SplFixedArray($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); echo ' SplFixedArray()' . PHP_EOL; for($s = microtime(true), $m = memory_get_usage(), $container = new SplFixedArray($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)
7.1.70.0100.03419.24
7.1.60.0130.02919.01
7.1.50.0210.02418.86
7.1.40.0170.02718.27
7.1.30.0090.03718.52
7.1.20.0110.03018.41
7.1.10.0150.02618.74
7.1.00.0030.02918.72
7.0.200.0130.05318.95
7.0.190.0100.03118.82
7.0.180.0140.02718.50
7.0.170.0070.03318.52
7.0.160.0110.02918.40
7.0.150.0180.03118.31
7.0.140.0040.03818.46
7.0.130.0140.03218.78
7.0.120.0070.03518.77
7.0.110.0100.03218.68
7.0.100.0120.03218.64
7.0.90.0080.03018.25
7.0.80.0060.02818.38
7.0.70.0090.04018.35
7.0.60.0060.02918.34
7.0.50.0070.04918.70
7.0.40.0100.04216.60
7.0.30.0120.02316.64
7.0.20.0140.02616.72
7.0.10.0070.05716.64
7.0.00.0120.05316.87
5.6.300.0030.14529.79
5.6.290.0030.13330.16
5.6.280.0070.11930.10
5.6.270.0100.12730.09
5.6.260.0070.12830.11
5.6.250.0130.11930.12
5.6.240.0200.11930.16
5.6.230.0130.13630.06
5.6.220.0160.12030.14
5.6.210.0030.11630.23
5.6.200.0100.12930.00
5.6.190.0130.11029.90
5.6.180.0100.13029.90
5.6.170.0130.11429.95
5.6.160.0100.10830.07
5.6.150.0200.12830.07
5.6.140.0100.15330.15
5.6.130.0100.12630.19
5.6.120.0030.13030.25
5.6.110.0130.10729.96
5.6.100.0030.11930.24
5.6.90.0100.12629.68
5.6.80.0100.10529.64
5.6.70.0070.11529.38
5.6.60.0030.12429.63
5.6.50.0070.12129.39
5.6.40.0100.10229.55
5.6.30.0190.14329.45
5.6.20.0100.11429.36
5.6.10.0070.15929.61
5.6.00.0170.18929.38
5.5.380.0030.11326.78
5.5.370.0130.11826.85
5.5.360.0160.09826.67
5.5.350.0100.12126.81
5.5.340.0030.13327.29
5.5.330.0100.11127.21
5.5.320.0100.14327.17
5.5.310.0160.10226.89
5.5.300.0130.11126.87
5.5.290.0030.10926.89
5.5.280.0100.10527.23
5.5.270.0000.11827.20
5.5.260.0070.11927.23
5.5.250.0000.13327.05
5.5.240.0140.11226.35
5.5.230.0060.10626.60
5.5.220.0130.10126.60
5.5.210.0070.11226.36
5.5.200.0030.15826.48
5.5.190.0160.14426.23
5.5.180.0100.10926.57
5.5.160.0190.10226.54
5.5.150.0100.11826.57
5.5.140.0170.14926.58
5.5.130.0030.11526.21
5.5.120.0030.10926.57
5.5.110.0060.10726.47
5.5.100.0000.11026.39
5.5.90.0030.11126.52
5.5.80.0100.10326.46
5.5.70.0000.11926.11
5.5.60.0070.10226.53
5.5.50.0000.11426.23
5.5.40.0070.11826.23
5.5.30.0030.12626.41
5.5.20.0070.13026.50
5.5.10.0070.13326.27
5.5.00.0030.11526.17
5.4.450.0130.10928.45
5.4.440.0100.12228.41
5.4.430.0160.11228.58
5.4.420.0130.11528.45
5.4.410.0000.13028.36
5.4.400.0030.12428.28
5.4.390.0060.11328.16
5.4.380.0070.11128.11
5.4.370.0000.11728.30
5.4.360.0170.16528.08
5.4.350.0100.13828.12
5.4.340.0030.14228.16
5.4.320.0030.11828.33
5.4.310.0100.09828.18
5.4.300.0070.12227.96
5.4.290.0000.11128.07
5.4.280.0230.14228.12
5.4.270.0100.10428.19
5.4.260.0030.12228.04
5.4.250.0030.14028.01
5.4.240.0070.10528.15
5.4.230.0100.11628.31
5.4.220.0130.13528.24
5.4.210.0140.09628.34
5.4.200.0160.10928.25
5.4.190.0030.11528.06
5.4.180.0070.12628.01
5.4.170.0160.11228.31
5.4.160.0170.10928.26
5.4.150.0030.12228.23
5.4.140.0060.12425.64
5.4.130.0100.11325.69
5.4.120.0170.10325.87
5.4.110.0030.11025.81
5.4.100.0070.10425.83
5.4.90.0130.09725.93
5.4.80.0030.10625.80
5.4.70.0100.11625.78
5.4.60.0030.12725.71
5.4.50.0070.11525.71
5.4.40.0100.14325.88
5.4.30.0030.11025.78
5.4.20.0100.12625.63
5.4.10.0070.11625.57
5.4.00.0100.10125.34
5.3.290.0130.21323.76
5.3.280.0100.11423.69
5.3.270.0170.13623.97
5.3.260.0070.12223.51
5.3.250.0030.15823.90
5.3.240.0370.14323.70
5.3.230.0100.12923.93
5.3.220.0130.11523.96
5.3.210.0100.12023.83
5.3.200.0070.11323.86
5.3.190.0100.11823.97
5.3.180.0030.12823.47
5.3.170.0170.11823.67
5.3.160.0030.12623.89
5.3.150.0960.11223.88
5.3.140.0200.09923.96
5.3.130.0000.11823.91
5.3.120.0100.10823.92
5.3.110.0000.12723.83
5.3.100.0130.10823.35
5.3.90.0070.11723.28
5.3.80.0100.12023.04
5.3.70.0070.11523.33
5.3.60.0070.12323.33
5.3.50.0100.10822.94
5.3.40.0130.11523.12
5.3.30.0000.15523.07
5.3.20.0070.11122.71
5.3.10.0000.12922.80
5.3.00.0030.11622.98

preferences:
35.22 ms | 401 KiB | 5 Q