3v4l.org

run code in 300+ PHP versions simultaneously
<?php class first { public function getI() { static $a = null; if ($a = null) { $a = new stdClass(); } return $a } } function foo() { static $a = 1; $a++; print $a."\n"; } var_dump($a); foo(); var_dump($a); foo(); var_dump($a); foo(); var_dump($a); foo(); var_dump($a); $f = new first(); $n = $f->getI(); var_dump($n); 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)
5.4.320.0070.03912.51
5.4.310.0050.03912.52
5.4.300.0080.04012.52
5.4.290.0040.04112.52
5.4.280.0090.05012.41
5.4.270.0090.04312.41
5.4.260.0070.03612.41
5.4.250.0090.03912.41
5.4.240.0050.03912.41
5.4.230.0090.03812.40
5.4.220.0060.04812.40
5.4.210.0050.03712.40
5.4.200.0070.03712.40
5.4.190.0080.03512.39
5.4.180.0100.03712.39
5.4.170.0060.03812.40
5.4.160.0100.03312.40
5.4.150.0100.03212.39
5.4.140.0050.03812.09
5.4.130.0060.03612.07
5.4.120.0050.03612.03
5.4.110.0080.03212.03
5.4.100.0070.03412.03
5.4.90.0090.03312.04
5.4.80.0050.03812.03
5.4.70.0050.03512.03
5.4.60.0080.03112.02
5.4.50.0070.03712.03
5.4.40.0040.03612.02
5.4.30.0050.03512.01
5.4.20.0050.03612.01
5.4.10.0050.03612.01
5.4.00.0050.04111.51
5.3.290.0090.05912.80
5.3.280.0100.03812.71
5.3.270.0080.03812.72
5.3.260.0110.03512.72
5.3.250.0070.03912.72
5.3.240.0080.03612.72
5.3.230.0090.03812.71
5.3.220.0070.03712.68
5.3.210.0090.03812.68
5.3.200.0100.03412.68
5.3.190.0110.03412.68
5.3.180.0050.03812.68
5.3.170.0090.03412.67
5.3.160.0060.03712.67
5.3.150.0080.03512.67
5.3.140.0060.04112.66
5.3.130.0060.03812.66
5.3.120.0080.03712.66
5.3.110.0050.03912.65
5.3.100.0040.03912.13
5.3.90.0050.03812.10
5.3.80.0060.03712.09
5.3.70.0060.03712.09
5.3.60.0070.03512.08
5.3.50.0040.03812.03
5.3.40.0020.04012.03
5.3.30.0080.03311.98
5.3.20.0070.03711.77
5.3.10.0070.03411.73
5.3.00.0050.03811.72
5.2.170.0070.0319.23
5.2.160.0060.0329.22
5.2.150.0100.0259.22
5.2.140.0040.0339.22
5.2.130.0070.0279.18
5.2.120.0030.0319.18
5.2.110.0030.0319.19
5.2.100.0030.0369.18
5.2.90.0040.0319.18
5.2.80.0070.0359.17
5.2.70.0070.0409.18
5.2.60.0050.0319.13
5.2.50.0050.0319.10
5.2.40.0110.0369.07
5.2.30.0060.0339.05
5.2.20.0050.0369.04
5.2.10.0050.0378.94
5.2.00.0060.0298.81
5.1.60.0030.0328.09
5.1.50.0070.0288.09
5.1.40.0070.0268.07
5.1.30.0030.0308.42
5.1.20.0050.0278.45
5.1.10.0030.0278.16
5.1.00.0050.0248.17
5.0.50.0040.0206.64
5.0.40.0040.0206.50
5.0.30.0060.0286.32
5.0.20.0030.0206.28
5.0.10.0050.0196.25
5.0.00.0020.0326.25
4.4.90.0040.0144.78
4.4.80.0040.0184.76
4.4.70.0020.0164.76
4.4.60.0020.0164.75
4.4.50.0030.0154.77
4.4.40.0020.0264.71
4.4.30.0050.0174.76
4.4.20.0010.0184.84
4.4.10.0030.0154.85
4.4.00.0050.0254.76
4.3.110.0020.0164.66
4.3.100.0040.0134.66
4.3.90.0030.0144.63
4.3.80.0040.0234.59
4.3.70.0030.0144.63
4.3.60.0030.0144.63
4.3.50.0030.0154.63
4.3.40.0020.0274.54
4.3.30.0040.0163.30
4.3.20.0030.0153.28
4.3.10.0030.0143.23
4.3.00.0000.02018.16

preferences:
138.86 ms | 1394 KiB | 7 Q