3v4l.org

run code in 300+ PHP versions simultaneously
<?php function merge(array $a, array $b, $preserveNumericKeys = false) { foreach ($b as $key => $value) { if (array_key_exists($key, $a)) { if (is_int($key) && !$preserveNumericKeys) { $a[] = $value; } elseif (is_array($value) && is_array($a[$key])) { $a[$key] = static::merge($a[$key], $value, $preserveNumericKeys); } else { $a[$key] = $value; } } else { $a[$key] = $value; } } return $a; } merge(array('franz', 'de leon'), array('franz', 'kafka'));

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)
5.6.280.0000.07720.78
5.6.250.0030.07020.63
5.6.240.0130.08020.64
5.6.230.0130.07020.63
5.6.220.0130.06320.53
5.6.210.0100.08320.64
5.6.200.0270.04321.07
5.6.190.0030.05721.11
5.6.180.0070.06721.15
5.6.170.0070.04321.09
5.6.160.0130.06721.01
5.6.150.0130.04020.96
5.6.140.0030.04721.02
5.6.130.0170.06720.95
5.6.120.0200.06021.00
5.6.110.0070.05021.04
5.6.100.0130.05320.93
5.6.90.0030.04720.97
5.6.80.0100.08020.32
5.6.70.0170.07020.39
5.6.60.0070.04720.54
5.6.50.0130.06020.41
5.6.40.0100.04320.32
5.6.30.0070.07720.38
5.6.20.0170.03020.38
5.6.10.0170.07320.41
5.6.00.0100.06720.51
5.5.380.0070.07720.55
5.5.370.0170.06720.39
5.5.360.0100.07320.39
5.5.350.0170.04020.38
5.5.340.0070.08020.89
5.5.330.0100.08020.73
5.5.320.0130.05320.86
5.5.310.0070.08320.93
5.5.300.0070.04320.76
5.5.290.0100.04720.83
5.5.280.0100.08320.90
5.5.270.0100.04320.83
5.5.260.0100.04720.75
5.5.250.0200.03720.73
5.5.240.0100.07720.16
5.5.230.0030.05019.98
5.5.220.0200.06720.24
5.5.210.0130.05720.15
5.5.200.0130.07320.21
5.5.190.0070.07720.15
5.5.180.0000.08720.14
5.5.160.0070.07320.25
5.5.150.0000.08019.98
5.5.140.0030.04020.21
5.5.130.0000.08720.21
5.5.120.0200.07020.23
5.5.110.0130.06720.09
5.5.100.0070.07020.16
5.5.90.0130.04019.98
5.5.80.0170.06720.04
5.5.70.0100.07720.06
5.5.60.0070.05320.13
5.5.50.0070.04019.94
5.5.40.0030.08020.00
5.5.30.0000.04720.14
5.5.20.0170.06319.93
5.5.10.0070.07720.06
5.5.00.0070.07720.07
5.4.450.0070.05019.45
5.4.440.0100.04319.53
5.4.430.0030.04719.53
5.4.420.0070.08019.35
5.4.410.0030.04719.32
5.4.400.0070.07318.88
5.4.390.0070.08019.16
5.4.380.0070.08019.04
5.4.370.0100.05719.04
5.4.360.0070.07318.85
5.4.350.0030.07019.03
5.4.340.0070.08019.16
5.4.320.0100.04319.03
5.4.310.0030.04019.21
5.4.300.0030.08018.89
5.4.290.0070.04319.12
5.4.280.0130.06718.95
5.4.270.0170.06719.08
5.4.260.0070.07718.90
5.4.250.0030.04019.02
5.4.240.0170.06719.02
5.4.230.0100.07018.87
5.4.220.0100.07019.22
5.4.210.0000.05319.11
5.4.200.0070.07318.94
5.4.190.0100.07718.88
5.4.180.0000.05319.04
5.4.170.0030.07318.84
5.4.160.0170.07019.01
5.4.150.0130.06719.00
5.4.140.0030.07316.41
5.4.130.0030.08016.49
5.4.120.0070.07316.34
5.4.110.0000.04716.46
5.4.100.0170.04016.46
5.4.90.0000.04316.48
5.4.80.0100.03016.34
5.4.70.0070.04016.54
5.4.60.0030.03716.41
5.4.50.0070.04016.48
5.4.40.0130.05016.42
5.4.30.0070.05316.47
5.4.20.0070.07016.42
5.4.10.0030.03716.24
5.4.00.0070.03015.90
5.3.290.0030.07314.79
5.3.280.0100.07314.62
5.3.270.0070.07014.72
5.3.260.0100.06014.73
5.3.250.0100.07714.59
5.3.240.0070.03314.56
5.3.230.0070.06014.68
5.3.220.0070.07714.59
5.3.210.0070.05714.66
5.3.200.0130.05014.68
5.3.190.0070.07714.55
5.3.180.0070.03714.67
5.3.170.0070.03314.48
5.3.160.0030.03714.62
5.3.150.0030.04014.54
5.3.140.0070.07714.50
5.3.130.0070.05014.63
5.3.120.0100.07314.55
5.3.110.0030.06714.61
5.3.100.0000.04314.04
5.3.90.0000.08013.97
5.3.80.0070.06014.08
5.3.70.0100.05714.04
5.3.60.0070.03713.89
5.3.50.0130.06713.88
5.3.40.0000.03714.05
5.3.30.0070.06713.79
5.3.20.0070.07013.59
5.3.10.0030.07013.71
5.3.00.0030.06013.65
5.2.170.0070.03311.98
5.2.160.0130.05311.98
5.2.150.0030.05311.98
5.2.140.0030.05711.98
5.2.130.0070.05711.98
5.2.120.0000.03311.98
5.2.110.0030.05711.98
5.2.100.0070.05311.98
5.2.90.0100.03711.98
5.2.80.0070.05311.98
5.2.70.0030.05011.98
5.2.60.0100.05011.98
5.2.50.0000.03011.98
5.2.40.0070.05311.98
5.2.30.0000.04011.98
5.2.20.0070.02311.98
5.2.10.0070.03711.98
5.2.00.0070.05711.98
5.1.60.0000.05711.98
5.1.50.0070.04311.98
5.1.40.0030.04711.98
5.1.30.0100.03711.98
5.1.20.0100.04711.98
5.1.10.0030.04311.98
5.1.00.0070.03711.98
5.0.50.0000.03011.98
5.0.40.0070.02311.98
5.0.30.0000.03711.98
5.0.20.0030.01711.98
5.0.10.0030.01711.98
5.0.00.0000.03311.98
4.4.90.0030.03311.98
4.4.80.0000.03311.98
4.4.70.0000.01711.98
4.4.60.0000.02711.98
4.4.50.0030.02711.98
4.4.40.0000.05311.98
4.4.30.0000.03711.98
4.4.20.0000.03011.98
4.4.10.0000.03311.98
4.4.00.0100.03711.98
4.3.110.0070.01011.98
4.3.100.0030.02011.98
4.3.90.0030.01311.98
4.3.80.0070.04711.98
4.3.70.0000.01711.98
4.3.60.0030.01711.98
4.3.50.0000.01711.98
4.3.40.0000.02311.98
4.3.30.0000.01711.98
4.3.20.0000.01711.98
4.3.10.0000.01711.98
4.3.00.0030.01311.98

preferences:
137.08 ms | 1398 KiB | 7 Q