3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(1, 2, 3, 4); foreach ($array as &$valor) { $valor = $valor * 2; } // $array ahora es array(2, 4, 6, 8) unset(&$valor); // rompe la referencia con el Ășltimo elemento var_dump($array); ?>

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)
5.4.270.0070.07018.76
5.4.260.0000.06318.84
5.4.250.0130.07318.90
5.4.240.0070.05318.80
5.4.230.0100.08018.79
5.4.220.0100.05318.76
5.4.210.0130.05018.99
5.4.200.0130.07018.94
5.4.190.0170.05018.64
5.4.180.0200.06318.89
5.4.170.0070.07719.01
5.4.160.0030.06018.75
5.4.150.0170.05718.94
5.4.140.0100.05316.53
5.4.130.0070.05316.30
5.4.120.0170.06316.54
5.4.110.0130.07716.41
5.4.100.0030.05716.55
5.4.90.0100.05016.62
5.4.80.0170.06316.39
5.4.70.0130.05316.34
5.4.60.0100.06316.34
5.4.50.0170.07016.62
5.4.40.0130.06316.54
5.4.30.0100.05016.45
5.4.20.0130.06716.38
5.4.10.0130.05716.38
5.4.00.0000.07315.84
5.3.280.0100.07014.59
5.3.270.0100.05314.70
5.3.260.0100.07014.44
5.3.250.0030.05314.39
5.3.240.0030.07714.70
5.3.230.0070.05314.43
5.3.220.0000.05714.57
5.3.210.0170.06714.43
5.3.200.0130.07014.58
5.3.190.0130.06314.72
5.3.180.0200.04014.57
5.3.170.0070.05314.43
5.3.160.0100.06314.57
5.3.150.0170.05014.58
5.3.140.0100.04714.48
5.3.130.0100.07714.55
5.3.120.0130.04714.47
5.3.110.0070.07314.46
5.3.100.0130.04714.04
5.3.90.0100.07014.19
5.3.80.0070.06313.91
5.3.70.0130.06713.86
5.3.60.0170.04013.87
5.3.50.0100.05713.86
5.3.40.0100.06714.11
5.3.30.0100.05013.75
5.3.20.0130.05013.79
5.3.10.0030.05313.43
5.3.00.0070.05713.50
5.2.170.0100.05010.98
5.2.160.0030.06311.25
5.2.150.0070.05711.15
5.2.140.0030.04311.15
5.2.130.0100.05311.11
5.2.120.0130.05010.86
5.2.110.0130.04011.12
5.2.100.0130.03311.02
5.2.90.0030.06311.01
5.2.80.0030.04311.00
5.2.70.0100.06011.09
5.2.60.0030.06011.04
5.2.50.0130.03710.91
5.2.40.0100.03711.02
5.2.30.0130.04310.81
5.2.20.0130.03311.07
5.2.10.0170.03310.77
5.2.00.0030.06010.79
5.1.60.0000.03710.06
5.1.50.0030.05010.06
5.1.40.0100.0309.94
5.1.30.0070.04710.32
5.1.20.0000.06310.42
5.1.10.0100.0409.84
5.1.00.0130.04010.25
5.0.50.0200.0208.43
5.0.40.0030.0408.34
5.0.30.0070.0478.45
5.0.20.0030.0408.11
5.0.10.0000.0338.25
5.0.00.0000.0578.39
4.4.90.0100.0276.21
4.4.80.0000.0236.21
4.4.70.0000.0276.21
4.4.60.0000.0306.21
4.4.50.0030.0306.21
4.4.40.0030.0436.21
4.4.30.0030.0236.21
4.4.20.0000.0276.21
4.4.10.0030.0276.21
4.4.00.0070.0406.21
4.3.110.0030.0306.21
4.3.100.0000.0236.21
4.3.90.0000.0236.21
4.3.80.0030.0336.21
4.3.70.0030.0206.21
4.3.60.0070.0206.21
4.3.50.0030.0336.21
4.3.40.0030.0376.21
4.3.30.0030.0276.21
4.3.20.0000.0306.21
4.3.10.0000.0276.21
4.3.00.0100.0236.51

preferences:
146.62 ms | 1394 KiB | 7 Q