3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = $y = 1; var_dump( (!$x === $y) === (!($x === $y)) ); $x = false; $y = true; var_dump(!$x === $y); var_dump(!($x === $y);

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)
5.4.340.0060.03612.01
5.4.320.0040.03812.50
5.4.310.0030.04512.49
5.4.300.0080.04012.50
5.4.290.0040.03912.49
5.4.280.0050.03612.39
5.4.270.0070.03512.39
5.4.260.0050.03712.39
5.4.250.0050.04212.39
5.4.240.0080.03912.39
5.4.230.0050.03812.38
5.4.220.0090.03212.38
5.4.210.0040.03612.38
5.4.200.0040.04712.38
5.4.190.0040.04212.38
5.4.180.0080.04812.38
5.4.170.0040.04512.39
5.4.160.0100.03912.38
5.4.150.0070.04012.38
5.4.140.0040.03812.07
5.4.130.0060.04012.05
5.4.120.0040.03612.02
5.4.110.0080.03912.01
5.4.100.0080.04012.01
5.4.90.0100.03812.01
5.4.80.0070.04212.02
5.4.70.0060.03312.00
5.4.60.0050.03712.01
5.4.50.0060.03912.01
5.4.40.0030.03712.00
5.4.30.0060.03611.99
5.4.20.0060.04611.98
5.4.10.0060.03511.99
5.4.00.0030.03811.48
5.3.290.0060.03912.80
5.3.280.0030.04112.71
5.3.270.0070.04212.72
5.3.260.0090.04312.72
5.3.250.0040.03712.72
5.3.240.0080.04212.71
5.3.230.0070.05312.71
5.3.220.0060.04512.68
5.3.210.0090.04812.68
5.3.200.0050.03812.68
5.3.190.0060.03812.68
5.3.180.0060.03512.68
5.3.170.0040.03712.67
5.3.160.0070.04112.68
5.3.150.0040.04912.67
5.3.140.0060.03612.66
5.3.130.0070.03812.66
5.3.120.0050.03912.66
5.3.110.0060.04712.65
5.3.100.0070.03912.12
5.3.90.0050.03712.08
5.3.80.0050.03612.07
5.3.70.0050.03712.07
5.3.60.0070.03512.07
5.3.50.0050.03612.00
5.3.40.0030.03812.00
5.3.30.0030.03711.95
5.3.20.0030.03711.73
5.3.10.0070.03311.70
5.3.00.0040.03711.68
5.2.170.0040.0399.18
5.2.160.0070.0269.19
5.2.150.0050.0319.19
5.2.140.0050.0369.18
5.2.130.0030.0309.14
5.2.120.0070.0359.14
5.2.110.0050.0289.15
5.2.100.0060.0269.15
5.2.90.0060.0279.14
5.2.80.0020.0379.14
5.2.70.0020.0329.14
5.2.60.0040.0299.09
5.2.50.0080.0479.06
5.2.40.0040.0379.04
5.2.30.0070.0369.01
5.2.20.0040.0399.00
5.2.10.0020.0308.92
5.2.00.0040.0298.78
5.1.60.0040.0298.07
5.1.50.0050.0238.07
5.1.40.0030.0258.05
5.1.30.0020.0278.40
5.1.20.0030.0268.42
5.1.10.0070.0248.14
5.1.00.0040.0248.14
5.0.50.0020.0226.63
5.0.40.0020.0246.48
5.0.30.0030.0376.29
5.0.20.0040.0306.27
5.0.10.0080.0156.25
5.0.00.0030.0306.24
4.4.90.0030.0144.78
4.4.80.0040.0214.75
4.4.70.0030.0264.75
4.4.60.0030.0144.75
4.4.50.0030.0234.77
4.4.40.0030.0364.71
4.4.30.0020.0164.76
4.4.20.0020.0164.84
4.4.10.0050.0164.85
4.4.00.0010.0264.76
4.3.110.0020.0154.67
4.3.100.0020.0154.67
4.3.90.0060.0104.64
4.3.80.0050.0214.58
4.3.70.0030.0144.63
4.3.60.0030.0144.63
4.3.50.0020.0224.62
4.3.40.0020.0244.54
4.3.30.0030.0303.29
4.3.20.0030.0143.27
4.3.10.0020.0153.23
4.3.00.0170.0277.20

preferences:
136.27 ms | 1394 KiB | 7 Q