3v4l.org

run code in 300+ PHP versions simultaneously
<?php function getRef(&$tak) { &$tak .= "tasads"; } $var = "Ta"; echo $var + "<br>"; getRef($var); echo $var + "<br>";

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)
5.4.320.0080.03512.52
5.4.310.0060.03812.52
5.4.300.0040.03812.52
5.4.290.0030.04412.51
5.4.280.0050.03512.41
5.4.270.0040.03712.40
5.4.260.0060.03712.41
5.4.250.0040.03912.41
5.4.240.0050.03712.40
5.4.230.0070.03612.39
5.4.220.0070.04212.40
5.4.210.0060.03612.40
5.4.200.0060.03812.39
5.4.190.0050.03612.39
5.4.180.0100.03212.39
5.4.170.0100.04012.40
5.4.160.0110.03012.40
5.4.150.0080.03312.39
5.4.140.0100.03312.08
5.4.130.0070.03412.06
5.4.120.0030.03812.03
5.4.110.0040.03612.03
5.4.100.0050.03512.03
5.4.90.0050.03712.02
5.4.80.0060.03612.02
5.4.70.0090.03112.02
5.4.60.0110.02812.02
5.4.50.0060.03412.02
5.4.40.0070.03412.01
5.4.30.0040.03712.01
5.4.20.0050.03512.00
5.4.10.0050.03512.01
5.4.00.0050.03711.50
5.3.290.0050.04012.80
5.3.280.0070.03612.71
5.3.270.0070.03812.72
5.3.260.0050.04012.72
5.3.250.0080.03612.72
5.3.240.0080.03512.72
5.3.230.0030.04012.71
5.3.220.0040.04412.68
5.3.210.0040.04312.68
5.3.200.0070.03512.68
5.3.190.0050.03812.68
5.3.180.0130.02912.68
5.3.170.0100.03212.66
5.3.160.0090.03312.67
5.3.150.0100.03312.67
5.3.140.0080.03412.66
5.3.130.0080.03712.66
5.3.120.0090.03512.66
5.3.110.0090.03512.66
5.3.100.0060.03612.13
5.3.90.0050.03612.11
5.3.80.0070.03612.09
5.3.70.0060.04212.09
5.3.60.0080.03512.08
5.3.50.0070.04312.04
5.3.40.0050.04112.02
5.3.30.0050.03811.98
5.3.20.0050.03611.76
5.3.10.0040.03711.74
5.3.00.0040.03711.71
5.2.170.0050.0319.22
5.2.160.0030.0319.22
5.2.150.0020.0329.21
5.2.140.0030.0349.21
5.2.130.0050.0289.17
5.2.120.0050.0349.18
5.2.110.0050.0289.18
5.2.100.0060.0279.18
5.2.90.0050.0299.18
5.2.80.0060.0299.17
5.2.70.0060.0299.17
5.2.60.0040.0309.12
5.2.50.0100.0249.09
5.2.40.0030.0309.07
5.2.30.0010.0339.04
5.2.20.0040.0299.04
5.2.10.0020.0308.95
5.2.00.0050.0298.80
5.1.60.0020.0268.08
5.1.50.0030.0268.08
5.1.40.0030.0258.07
5.1.30.0010.0298.42
5.1.20.0040.0268.44
5.1.10.0060.0238.16
5.1.00.0050.0248.16
5.0.50.0080.0166.64
5.0.40.0090.0136.49
5.0.30.0030.0316.31
5.0.20.0040.0186.29
5.0.10.0040.0196.25
5.0.00.0060.0286.24
4.4.90.0040.0144.77
4.4.80.0020.0164.75
4.4.70.0040.0144.75
4.4.60.0010.0174.75
4.4.50.0020.0164.77
4.4.40.0020.0264.71
4.4.30.0070.0114.76
4.4.20.0020.0164.84
4.4.10.0050.0154.85
4.4.00.0040.0274.76
4.3.110.0050.0134.67
4.3.100.0030.0154.67
4.3.90.0030.0144.64
4.3.80.0020.0254.58
4.3.70.0030.0144.63
4.3.60.0030.0144.63
4.3.50.0020.0164.63
4.3.40.0020.0244.54
4.3.30.0020.0153.30
4.3.20.0030.0153.28
4.3.10.0020.0153.23
4.3.00.0000.0236.80

preferences:
140.78 ms | 1394 KiB | 7 Q