3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('a' => "test", 'b' => 'aa'); array_merge($a, array(['aa'] => "dfd")); var_dump($a); ?>

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)
5.6.280.0070.07020.86
5.6.210.0100.06720.52
5.6.200.0070.05018.12
5.6.190.0070.04320.79
5.6.180.4300.04720.67
5.6.170.0230.07720.38
5.6.160.0000.09020.62
5.6.150.0070.04018.08
5.6.140.0100.09318.18
5.6.130.0000.04318.21
5.6.120.0100.07721.07
5.6.110.0070.07320.97
5.6.100.0070.07321.12
5.6.90.0030.05721.02
5.6.80.0030.08720.38
5.6.70.4470.03320.36
5.5.350.0070.08020.48
5.5.340.0130.07717.98
5.5.330.0030.09020.15
5.5.320.0070.06720.30
5.5.310.0300.07020.16
5.5.300.0200.07018.01
5.5.290.0170.07017.88
5.5.280.0070.06320.89
5.5.270.0100.03720.79
5.5.260.0030.07320.75
5.5.250.0030.04320.70
5.5.240.0200.07020.25
5.4.450.1570.04319.32
5.4.440.1500.03719.30
5.4.430.1930.04719.29
5.4.420.1630.02719.53
5.4.410.1800.03318.99
5.4.400.0830.03719.16
5.4.390.0070.07019.16
5.4.380.0000.06718.73
5.4.370.0570.03319.21
5.4.360.1500.04319.01
5.4.350.1700.05019.14
5.4.340.1530.03018.71
5.4.320.1730.04318.68
5.4.310.1730.04019.03
5.4.300.1600.05719.14
5.4.290.1530.03019.02
5.4.280.1600.04318.84
5.4.270.1530.04019.02
5.4.260.1570.03719.13
5.4.250.1470.03718.71
5.4.240.0630.05718.97
5.4.230.0130.06318.84
5.4.220.0000.05018.97
5.4.210.0300.07719.10
5.4.200.1570.03319.10
5.4.190.1930.04018.79
5.4.180.1670.03319.10
5.4.170.1830.03319.16
5.4.160.1530.04018.95
5.4.150.1500.04318.99
5.4.140.1530.03716.30
5.4.130.1830.03716.35
5.4.120.1600.04316.26
5.4.110.1530.03316.39
5.4.100.1300.04016.34
5.4.90.0070.04316.47
5.4.80.0000.04316.25
5.4.70.0730.03716.16
5.4.60.1530.03716.40
5.4.50.1600.03716.20
5.4.40.1570.03316.42
5.4.30.1570.03316.36
5.4.20.1770.03716.45
5.4.10.1530.03716.39
5.4.00.1770.04015.87
5.3.280.1600.03014.50
5.3.270.1570.03714.51
5.3.260.1570.03314.55
5.3.250.1500.04014.45
5.3.240.1530.03714.48
5.3.230.1600.03714.45
5.3.220.1570.04314.43
5.3.210.1900.04314.44
5.3.200.1830.04014.50
5.3.190.1700.04014.41
5.3.180.0900.04014.41
5.3.170.0030.07014.42
5.3.160.0070.07014.40
5.3.150.0030.05014.41
5.3.140.1570.03314.65
5.3.130.1770.04014.40
5.3.120.1700.03314.41
5.3.110.1770.04714.38
5.3.100.1770.04313.89
5.3.90.1630.04014.01
5.3.80.1500.04013.89
5.3.70.1730.04013.87
5.3.60.1700.03013.98
5.3.50.1870.04313.74
5.3.40.1630.03313.93
5.3.30.1770.03313.85
5.3.20.1700.04013.61
5.3.10.1470.03313.61
5.3.00.1700.04313.62
5.2.170.1630.04011.05
5.2.160.1500.03311.23
5.2.150.1230.03011.16
5.2.140.1530.04311.05
5.2.130.1470.03010.96
5.2.120.1230.03011.14
5.2.110.1270.03311.01
5.2.100.1470.03710.95
5.2.90.1430.03011.12
5.2.80.1230.03010.96
5.2.70.1500.02310.98
5.2.60.1570.03011.10
5.2.50.1430.03710.86
5.2.40.1000.02711.07
5.2.30.1130.04310.80
5.2.20.0970.03010.79
5.2.10.1170.03310.83
5.2.00.1270.04310.76
5.1.60.1200.03710.16
5.1.50.1000.0309.98
5.1.40.1270.03710.06
5.1.30.1030.03310.42
5.1.20.1030.02310.36
5.1.10.1000.02710.12
5.1.00.1130.02710.15
5.0.50.0630.0338.53
5.0.40.0570.0208.43
5.0.30.0530.0438.20
5.0.20.0600.0308.28
5.0.10.0630.0238.07
5.0.00.0530.0308.08
4.4.90.0200.0177.62
4.4.80.0630.0277.62
4.4.70.0500.0177.62
4.4.60.0530.0137.62
4.4.50.0530.0177.62
4.4.40.0130.0307.62
4.4.30.0000.0177.62
4.4.20.0000.0177.62
4.4.10.0000.0177.62
4.4.00.0070.0277.62
4.3.110.0030.0137.62
4.3.100.0070.0307.62
4.3.90.0030.0137.62
4.3.80.0030.0507.62
4.3.70.0200.0337.62
4.3.60.0600.0207.62
4.3.50.0700.0207.62
4.3.40.0700.0377.62
4.3.30.0230.0177.62
4.3.20.0030.0137.62
4.3.10.0270.0177.62
4.3.00.0300.0107.62

preferences:
148.84 ms | 1394 KiB | 7 Q