3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = array(); $y = array(); for ($i=100000; $i--;)$y[$i] =& $x; for ($i=100000; $i--;)unset($y[$i]));

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)
5.4.270.0070.08018.90
5.4.260.0100.07719.00
5.4.250.0100.07319.00
5.4.240.0130.06019.02
5.4.230.0030.06018.65
5.4.220.0070.07718.84
5.4.210.0100.08018.96
5.4.200.0030.05719.00
5.4.190.0100.05319.02
5.4.180.0130.06718.99
5.4.170.0100.05019.00
5.4.160.0000.07018.78
5.4.150.0130.06718.77
5.4.140.0130.04716.51
5.4.130.0100.06316.42
5.4.120.0100.06316.56
5.4.110.0070.05316.56
5.4.100.0070.05716.55
5.4.90.0170.05016.45
5.4.80.0130.04316.61
5.4.70.0200.06016.37
5.4.60.0230.05316.35
5.4.50.0070.06316.36
5.4.40.0170.04316.43
5.4.30.0100.06316.33
5.4.20.0070.05316.59
5.4.10.0300.05016.41
5.4.00.0130.05316.05
5.3.280.0100.05714.75
5.3.270.0100.05714.38
5.3.260.0130.05314.76
5.3.250.0000.08314.62
5.3.240.0230.04714.49
5.3.230.0130.06714.30
5.3.220.0030.07314.61
5.3.210.0100.07014.35
5.3.200.0100.05014.41
5.3.190.0070.05714.27
5.3.180.0030.05714.42
5.3.170.0170.04314.58
5.3.160.0130.04714.34
5.3.150.0030.07314.58
5.3.140.0030.06014.57
5.3.130.0070.05714.60
5.3.120.0170.04314.56
5.3.110.0170.04314.64
5.3.100.0000.07314.04
5.3.90.0100.06714.07
5.3.80.0000.05714.09
5.3.70.0100.06714.04
5.3.60.0070.07014.16
5.3.50.0130.04713.79
5.3.40.0100.06713.84
5.3.30.0030.05313.85
5.3.20.0100.06313.79
5.3.10.0100.06713.74
5.3.00.0100.05713.48
5.2.170.0000.04711.07
5.2.160.0030.04311.15
5.2.150.0070.04011.16
5.2.140.0100.04011.09
5.2.130.0100.04310.98
5.2.120.0070.05711.02
5.2.110.0000.04711.09
5.2.100.0170.04311.09
5.2.90.0170.04310.86
5.2.80.0070.04311.11
5.2.70.0130.03710.86
5.2.60.0070.04311.16
5.2.50.0030.04710.91
5.2.40.0030.04711.00
5.2.30.0100.05010.98
5.2.20.0130.03710.88
5.2.10.0000.04710.94
5.2.00.0070.04710.93
5.1.60.0130.04010.02
5.1.50.0000.03710.18
5.1.40.0100.04310.04
5.1.30.0030.04010.39
5.1.20.0070.04010.28
5.1.10.0170.03710.12
5.1.00.0030.0379.96
5.0.50.0170.0308.70
5.0.40.0000.0308.18
5.0.30.0070.0608.27
5.0.20.0030.0278.21
5.0.10.0100.0238.20
5.0.00.0000.0438.19
4.4.90.0100.0235.77
4.4.80.0100.0135.78
4.4.70.0000.0275.90
4.4.60.0100.0175.89
4.4.50.0030.0205.77
4.4.40.0100.0375.69
4.4.30.0100.0135.79
4.4.20.0070.0275.84
4.4.10.0130.0175.84
4.4.00.0030.0335.78
4.3.110.0000.0335.72
4.3.100.0000.0305.70
4.3.90.0030.0205.74
4.3.80.0030.0335.68
4.3.70.0030.0205.60
4.3.60.0000.0275.69
4.3.50.0000.0235.66
4.3.40.0000.0375.64
4.3.30.0000.0304.75
4.3.20.0000.0234.75
4.3.10.0000.0234.75
4.3.00.0070.0276.93

preferences:
141.47 ms | 1394 KiB | 7 Q