3v4l.org

run code in 300+ PHP versions simultaneously
<?php function test($var) { &$GLOBALS['a']++; //$var++; debug_zval_dump($var); //$GLOBALS['var']++; echo $var; echo $GLOBALS['a']; // echo $GLOBALS['var']; } $a = 0; test($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)
5.4.270.0070.05318.75
5.4.260.0200.03718.80
5.4.250.0130.04718.80
5.4.240.0070.05719.02
5.4.230.0070.06018.79
5.4.220.0030.06718.83
5.4.210.0070.05318.94
5.4.200.0200.05318.96
5.4.190.0130.04718.65
5.4.180.0130.06718.95
5.4.170.0130.04718.83
5.4.160.0070.05718.97
5.4.150.0100.06718.96
5.4.140.0070.05016.36
5.4.130.0070.04716.55
5.4.120.0100.04316.36
5.4.110.0100.04716.49
5.4.100.0170.04016.36
5.4.90.0070.04716.38
5.4.80.0070.04716.50
5.4.70.0070.05316.31
5.4.60.0130.04316.36
5.4.50.0070.04716.35
5.4.40.0100.04716.44
5.4.30.0000.05316.29
5.4.20.0100.04316.30
5.4.10.0130.04316.39
5.4.00.0170.04015.93
5.3.280.0130.04314.68
5.3.270.0070.05314.69
5.3.260.0070.05314.67
5.3.250.0030.05314.82
5.3.240.0070.05014.67
5.3.230.0070.05014.66
5.3.220.0130.04314.59
5.3.210.0100.05014.57
5.3.200.0130.04314.55
5.3.190.0030.06714.56
5.3.180.0130.04014.70
5.3.170.0100.04714.63
5.3.160.0100.04714.64
5.3.150.0100.04714.39
5.3.140.0170.04014.78
5.3.130.0100.05014.55
5.3.120.0070.05714.45
5.3.110.0070.05314.63
5.3.100.0030.05014.02
5.3.90.0030.05014.01
5.3.80.0070.04714.11
5.3.70.0070.04713.87
5.3.60.0000.05314.09
5.3.50.0170.04013.91
5.3.40.0130.06314.03
5.3.30.0170.03713.89
5.3.20.0130.05713.75
5.3.10.0130.04013.64
5.3.00.0000.05313.72
5.2.170.0100.03711.22
5.2.160.0070.04311.21
5.2.150.0030.04311.13
5.2.140.0070.04011.10
5.2.130.0170.02711.00
5.2.120.0130.04011.31
5.2.110.0070.03711.18
5.2.100.0100.03311.17
5.2.90.0000.04310.92
5.2.80.0000.04311.17
5.2.70.0100.03711.30
5.2.60.0030.04011.05
5.2.50.0030.04010.92
5.2.40.0030.04011.08
5.2.30.0000.04310.96
5.2.20.0100.03311.03
5.2.10.0030.03710.95
5.2.00.0070.03710.70
5.1.60.0070.0309.97
5.1.50.0000.04010.08
5.1.40.0030.03310.13
5.1.30.0070.03310.32
5.1.20.0070.03310.42
5.1.10.0000.04710.03
5.1.00.0130.02310.16
5.0.50.0000.0338.58
5.0.40.0000.0308.36
5.0.30.0030.0408.37
5.0.20.0100.0208.43
5.0.10.0100.0208.15
5.0.00.0000.0438.25
4.4.90.0070.0207.15
4.4.80.0070.0177.15
4.4.70.0030.0207.15
4.4.60.0030.0207.15
4.4.50.0070.0207.15
4.4.40.0070.0277.15
4.4.30.0070.0177.15
4.4.20.0030.0207.15
4.4.10.0000.0237.15
4.4.00.0070.0307.15
4.3.110.0030.0207.15
4.3.100.0030.0237.15
4.3.90.0030.0207.15
4.3.80.0000.0337.15
4.3.70.0000.0207.15
4.3.60.0000.0277.15
4.3.50.0030.0207.15
4.3.40.0000.0337.15
4.3.30.0000.0207.15
4.3.20.0030.0207.15
4.3.10.0030.0207.15
4.3.00.0130.0207.75

preferences:
140.63 ms | 1394 KiB | 7 Q