3v4l.org

run code in 300+ PHP versions simultaneously
<?php function check_unique() { $seen = []; return function ($value) use (&$seen) { if (in_array($value, $seen)) { return false; } $seen[] = $value; return true; }; } const ITEMS = 1000; $array = array_merge(range(1, ITEMS, 3), range(1, ITEMS, 2)); echo "started with ", count($array), " items\n"; $check_unique = check_unique(); $unique = []; echo "memory usage ", memory_get_peak_usage(), "\n"; $time = -microtime(true); foreach ($array as $value) { if ($check_unique($value)) { $unique[] = $value; } } $time += microtime(true); echo "memory usage ", memory_get_peak_usage(), "\n"; echo "took $time sec\n"; echo "finished with ", count($unique), " items\n";

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)
7.4.00.0100.01014.83
7.3.120.0070.01114.87
7.3.110.0030.01614.97
7.3.100.0080.00415.02
7.3.90.0040.00715.05
7.3.80.0030.01314.91
7.3.70.0090.00615.19
7.3.60.0000.01815.09
7.3.50.0100.00714.69
7.3.40.0040.01414.86
7.3.30.0070.01015.05
7.3.20.0000.01516.67
7.3.10.0040.01116.61
7.3.00.0090.00616.81
7.2.250.0070.01415.30
7.2.240.0100.01015.38
7.2.230.0110.00414.99
7.2.220.0060.01015.19
7.2.210.0060.01015.21
7.2.200.0000.01414.99
7.2.190.0110.00715.20
7.2.180.0120.00415.04
7.2.170.0130.00315.03
7.2.00.0070.00719.36
7.1.330.0040.01515.54
7.1.320.0060.00615.72
7.1.310.0070.01015.73
7.1.300.0030.01215.79
7.1.290.0040.00715.82
7.1.280.0000.01015.63
7.1.270.0100.00715.84
7.1.260.0060.00915.57
7.1.70.0030.00617.19
7.1.60.0200.00617.29
7.1.50.0060.01616.98
7.1.00.0000.03722.40
7.0.200.0090.01216.76
7.0.140.0030.07322.09
7.0.60.0030.07020.04
7.0.50.0200.06017.93
7.0.40.0030.05020.03
7.0.30.0230.04320.21
7.0.20.0270.07720.09
7.0.10.0230.05320.06
7.0.00.0100.07020.05
5.6.280.0000.09721.11
5.6.210.0000.05720.84
5.6.200.0100.09018.38
5.6.190.0030.09720.48
5.6.180.0270.05020.64
5.6.170.0270.05020.63
5.6.160.0070.10320.71
5.6.150.0130.07018.45
5.6.140.0100.07718.45
5.6.130.0070.06018.50
5.6.120.0030.08020.97
5.6.110.0070.05021.29
5.6.100.0130.09321.39
5.6.90.0130.08321.28
5.6.80.0130.08320.83
5.5.350.0270.09720.82
5.5.340.0070.10318.21
5.5.330.0000.07020.70
5.5.320.0000.10720.49
5.5.310.0130.06020.48
5.5.300.0100.09318.32
5.5.290.0230.09018.21
5.5.280.0100.06721.07
5.5.270.0100.09320.92
5.5.260.0100.09021.16
5.5.250.0100.09320.87
5.5.240.0130.07020.55
5.4.450.0730.07319.87
5.4.440.0170.06719.86
5.4.430.0730.04319.76
5.4.420.0600.05319.63
5.4.410.0200.06019.50
5.4.400.0400.04719.11
5.4.390.0370.05019.54
5.4.380.0400.09318.88
5.4.370.0670.09018.88
5.4.360.0370.06718.90
5.4.350.0600.09719.03
5.4.340.0500.07019.06
5.4.320.0070.04612.83
5.4.310.0060.05112.82
5.4.300.0040.05112.82
5.4.290.0080.04612.82
5.4.280.0070.05512.72
5.4.270.0090.05112.72
5.4.260.0130.10019.15
5.4.250.0170.07718.98
5.4.240.0030.07719.25
5.4.230.0100.09719.13
5.4.220.0100.09019.15
5.4.210.0070.06718.87
5.4.200.0030.07019.20
5.4.190.0100.09319.16
5.4.180.0070.07319.11
5.4.170.0200.06319.17
5.4.160.0130.06719.08
5.4.150.0100.09719.23
5.4.140.0170.09316.59
5.4.130.0030.10316.65
5.4.120.0230.08016.69
5.4.110.0100.10016.74
5.4.100.0170.09016.81
5.4.90.0130.06316.80
5.4.80.0070.09316.56
5.4.70.0070.08316.66
5.4.60.0100.10016.75
5.4.50.0130.05716.71
5.4.40.0030.10016.72
5.4.30.0200.06716.74
5.4.20.0030.07316.78
5.4.10.0170.06016.70
5.4.00.0130.06716.14
5.3.290.0080.04112.80
5.3.280.0130.06314.66
5.3.270.0000.06014.59
5.3.260.0100.07314.43
5.3.250.0030.07014.59
5.3.240.0100.07714.50
5.3.230.0070.07014.68
5.3.220.0100.06714.57
5.3.210.0100.07314.70
5.3.200.0170.06014.65
5.3.190.0100.07014.58
5.3.180.0100.05714.64
5.3.170.0100.04714.74
5.3.160.0070.05014.56
5.3.150.0100.05014.67
5.3.140.0070.05014.57
5.3.130.0100.07714.53
5.3.120.0000.06714.62
5.3.110.0070.06014.53
5.3.100.0200.05314.19
5.3.90.0100.04314.17
5.3.80.0000.06013.85
5.3.70.0130.05314.11
5.3.60.0030.06314.02
5.3.50.0070.05313.93
5.3.40.0100.06313.95
5.3.30.0100.07713.98
5.3.20.0200.05013.76
5.3.10.0070.05313.73
5.3.00.0130.06713.54
5.2.170.0100.04311.09
5.2.160.0100.04011.21
5.2.150.0030.05711.22
5.2.140.0030.06311.04
5.2.130.0030.04711.27
5.2.120.0070.03711.08
5.2.110.0070.04011.31
5.2.100.0170.05311.18
5.2.90.0070.05311.18
5.2.80.0000.05011.17
5.2.70.0030.05311.09
5.2.60.0130.05010.95
5.2.50.0030.05311.00
5.2.40.0030.04710.98
5.2.30.0070.05010.80
5.2.20.0000.06011.02
5.2.10.0130.04310.93
5.2.00.0000.05010.72
5.1.60.0000.0539.95
5.1.50.0070.03310.06
5.1.40.0000.03710.00
5.1.30.0000.05310.33
5.1.20.0000.04710.43
5.1.10.0030.04010.06
5.1.00.0030.04310.13
5.0.50.0070.0338.65
5.0.40.0070.0278.47
5.0.30.0070.0538.27
5.0.20.0030.0278.24
5.0.10.0130.0308.36
5.0.00.0030.0478.07
4.4.90.0030.0277.40
4.4.80.0070.0277.40
4.4.70.0070.0277.40
4.4.60.0000.0277.40
4.4.50.0000.0307.40
4.4.40.0000.0477.40
4.4.30.0100.0237.40
4.4.20.0030.0277.40
4.4.10.0000.0277.40
4.4.00.0030.0477.40
4.3.110.0030.0207.40
4.3.100.0000.0307.40
4.3.90.0030.0307.40
4.3.80.0030.0337.40
4.3.70.0070.0177.40
4.3.60.0000.0237.40
4.3.50.0070.0237.40
4.3.40.0030.0307.40
4.3.30.0000.0237.40
4.3.20.0070.0207.40
4.3.10.0030.0237.40
4.3.00.0000.01713.16

preferences:
38.58 ms | 400 KiB | 5 Q