3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Benchmark { private static $max, $memory; public static function memoryTick() { self::$memory = memory_get_usage() - self::$memory; self::$max = self::$memory>self::$max?self::$memory:self::$max; self::$memory = memory_get_usage(); debug_print_backtrace(); } public static function benchmarkMemory(callable $function, $args=null) { declare(ticks=1); self::$memory = memory_get_usage(); self::$max = 0; register_tick_function('call_user_func_array', ['Benchmark', 'memoryTick'], []); $result = is_array($args)? call_user_func_array($function, $args): call_user_func_array($function); unregister_tick_function('call_user_func_array'); return [ 'memory' => self::$max ]; } } var_dump(Benchmark::benchmarkMemory('str_repeat', ['test',1E4])); var_dump(Benchmark::benchmarkMemory('str_repeat', ['test',1E3]));

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)
7.2.00.0100.00319.08
7.1.70.0050.00317.13
7.1.60.0040.02119.17
7.1.50.0060.01617.07
7.1.00.0070.03022.28
7.0.200.0040.00416.63
7.0.140.0070.06722.00
7.0.100.0130.07719.96
7.0.90.0370.07019.96
7.0.80.0170.08319.97
7.0.70.0200.07719.87
7.0.60.0130.06720.01
7.0.50.0070.04020.24
7.0.40.0030.08320.00
7.0.30.0030.08320.00
7.0.20.0030.08020.11
7.0.10.0100.07320.07
7.0.00.0100.03320.12
5.6.280.0100.06721.12
5.6.250.0070.08320.72
5.6.240.0170.07320.72
5.6.230.0070.08720.68
5.6.220.0170.06720.73
5.6.210.0070.07720.55
5.6.200.0030.05020.96
5.6.190.0030.07721.09
5.6.180.0070.06721.14
5.6.170.0070.08021.00
5.6.160.0100.07020.96
5.6.150.0100.07720.94
5.6.140.0030.08021.11
5.6.130.0030.04321.11
5.6.120.0130.07321.11
5.6.110.0130.07021.13
5.6.100.0100.05721.10
5.6.90.0100.07321.09
5.6.80.0070.07020.47
5.6.70.0170.07020.34
5.6.60.0070.06020.32
5.6.50.0130.05020.43
5.6.40.0100.07020.43
5.6.30.0070.07320.48
5.6.20.0030.07320.39
5.6.10.0100.06720.38
5.6.00.0000.04720.41
5.5.380.0170.07320.45
5.5.370.0030.08320.42
5.5.360.0030.07720.54
5.5.350.0070.05020.46
5.5.340.0000.08020.91
5.5.330.0030.08320.94
5.5.320.0130.06320.85
5.5.310.0030.08020.80
5.5.300.0100.03320.88
5.5.290.0070.07320.80
5.5.280.0000.04320.89
5.5.270.0100.08020.80
5.5.260.0100.07320.80
5.5.250.0130.07320.74
5.5.240.0130.07020.31
5.5.230.0070.06720.11
5.5.220.0170.07020.29
5.5.210.0070.08720.15
5.5.200.0030.08320.30
5.5.190.0030.04020.25
5.5.180.0100.06720.19
5.5.160.0130.07019.99
5.5.150.0130.05320.24
5.5.140.0170.07020.22
5.5.130.0070.07320.09
5.5.120.0030.08020.13
5.5.110.0000.08020.15
5.5.100.0100.03020.09
5.5.90.0030.04020.16
5.5.80.0100.03320.13
5.5.70.0000.06719.97
5.5.60.0100.06320.09
5.5.50.0070.03320.08
5.5.40.0100.03019.93
5.5.30.0100.06720.11
5.5.20.0030.05320.16
5.5.10.0130.07720.05
5.5.00.0130.07720.04
5.4.450.0070.08319.21
5.4.440.0070.06019.23
5.4.430.0030.03719.41
5.4.420.0000.04019.48
5.4.410.0030.06719.24
5.4.400.0030.03319.24
5.4.390.0030.06719.09
5.4.380.0030.07319.04
5.4.370.0130.06019.19
5.4.360.0000.08018.88
5.4.350.0030.04318.85
5.4.340.0030.03719.20
5.4.320.0070.06318.91
5.4.310.0070.05719.19
5.4.300.0070.07319.18
5.4.290.0070.07318.90
5.4.280.0030.06719.04
5.4.270.0100.05319.23
5.4.260.0100.06319.03
5.4.250.0030.05719.20
5.4.240.0070.07319.09
5.4.230.0100.07019.18
5.4.220.0070.06718.87
5.4.210.0130.05319.03
5.4.200.0000.06719.13
5.4.190.0070.07019.02
5.4.180.0070.07719.04
5.4.170.0030.06318.89
5.4.160.0070.03719.14
5.4.150.0100.07018.83
5.4.140.0130.07316.34
5.4.130.0000.07316.18
5.4.120.0030.06016.40
5.4.110.0130.06716.45
5.4.100.0030.06016.53
5.4.90.0070.05016.50
5.4.80.0000.07016.48
5.4.70.0100.03316.54
5.4.60.0130.04716.45
5.4.50.0000.04716.52
5.4.40.0070.06716.52
5.4.30.0070.04016.32
5.4.20.0030.07716.41
5.4.10.0070.07316.30
5.4.00.0030.07015.88
5.3.290.0100.06014.69
5.3.280.0100.05714.68
5.3.270.0070.04014.61
5.3.260.0070.07714.69
5.3.250.0030.08314.60
5.3.240.0030.08014.60
5.3.230.0130.06014.54
5.3.220.0130.07014.69
5.3.210.0070.07014.60
5.3.200.0130.06014.56
5.3.190.0070.04314.57
5.3.180.0070.05714.66
5.3.170.0070.05014.71
5.3.160.0130.05314.63
5.3.150.0070.07714.51
5.3.140.0100.07314.57
5.3.130.0070.07314.62
5.3.120.0000.07014.54
5.3.110.0030.07714.68
5.3.100.0100.06014.00
5.3.90.0130.06314.01
5.3.80.0130.07014.14
5.3.70.0130.06714.16
5.3.60.0200.03014.07
5.3.50.0030.07313.88
5.3.40.0070.07313.93
5.3.30.0030.05313.82
5.3.20.0100.05013.68
5.3.10.0000.07013.79
5.3.00.0100.04013.54
5.2.170.0100.05311.03
5.2.160.0070.05711.08
5.2.150.0100.05711.28
5.2.140.0030.05711.20
5.2.130.0100.05711.22
5.2.120.0100.03011.21
5.2.110.0100.06011.16
5.2.100.0000.05711.13
5.2.90.0070.04311.22
5.2.80.0000.07011.16
5.2.70.0000.06711.02
5.2.60.0100.04311.15
5.2.50.0070.04711.04
5.2.40.0070.05710.98
5.2.30.0030.06310.92
5.2.20.0070.03011.11
5.2.10.0030.04010.83
5.2.00.0100.06010.75
5.1.60.0030.0479.84
5.1.50.0030.05310.00
5.1.40.0000.0279.87
5.1.30.0030.05310.41
5.1.20.0100.04710.41
5.1.10.0070.05310.16
5.1.00.0030.05310.07
5.0.50.0030.0338.61
5.0.40.0000.0308.54
5.0.30.0030.0608.22
5.0.20.0070.0378.20
5.0.10.0000.0408.21
5.0.00.0030.0678.16
4.4.90.0000.0377.73
4.4.80.0030.0177.73
4.4.70.0000.0407.73
4.4.60.0070.0307.73
4.4.50.0000.0307.73
4.4.40.0070.0477.73
4.4.30.0000.0307.73
4.4.20.0070.0277.73
4.4.10.0000.0377.73
4.4.00.0000.0537.73
4.3.110.0030.0337.73
4.3.100.0030.0337.73
4.3.90.0070.0307.73
4.3.80.0000.0437.73
4.3.70.0030.0337.73
4.3.60.0000.0377.73
4.3.50.0000.0377.73
4.3.40.0000.0407.73
4.3.30.0000.0307.73
4.3.20.0030.0337.73
4.3.10.0070.0277.73
4.3.00.0030.0377.73

preferences:
33.03 ms | 401 KiB | 5 Q