3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array( 'empty' => '', 'null' => null, '0' => 0, 'false' => false ); foreach (array_keys($array) as $name) { echo $name, ' -> ', var_export(isset($array[$name], true)), PHP_EOL; }

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)
5.4.340.0070.03612.02
5.4.320.0060.03812.50
5.4.310.0110.03812.49
5.4.300.0090.03712.50
5.4.290.0080.04112.50
5.4.280.0070.03512.39
5.4.270.0050.03612.39
5.4.260.0060.03712.39
5.4.250.0090.03712.39
5.4.240.0050.03812.39
5.4.230.0080.03812.39
5.4.220.0040.04212.38
5.4.210.0090.03512.39
5.4.200.0040.03912.39
5.4.190.0020.03912.38
5.4.180.0040.04012.38
5.4.170.0080.03412.39
5.4.160.0070.03512.39
5.4.150.0090.04412.38
5.4.140.0070.03712.07
5.4.130.0090.03312.05
5.4.120.0050.03512.02
5.4.110.0090.03712.02
5.4.100.0030.03912.02
5.4.90.0050.03812.02
5.4.80.0080.03412.01
5.4.70.0080.03212.01
5.4.60.0040.03612.01
5.4.50.0080.03212.01
5.4.40.0040.03612.00
5.4.30.0030.03812.00
5.4.20.0060.03411.99
5.4.10.0080.03212.00
5.4.00.0090.03311.48
5.3.290.0060.04112.80
5.3.280.0080.03812.71
5.3.270.0050.04312.72
5.3.260.0100.04112.72
5.3.250.0080.04012.72
5.3.240.0100.03612.72
5.3.230.0120.04912.71
5.3.220.0090.04412.68
5.3.210.0130.04012.68
5.3.200.0100.03812.68
5.3.190.0080.03812.68
5.3.180.0060.04212.68
5.3.170.0040.04712.67
5.3.160.0040.04012.67
5.3.150.0090.03512.68
5.3.140.0050.03712.66
5.3.130.0110.03312.65
5.3.120.0060.04212.66
5.3.110.0090.05112.66
5.3.100.0090.04312.12
5.3.90.0070.03512.08
5.3.80.0090.04012.08
5.3.70.0050.04212.08
5.3.60.0060.03812.07
5.3.50.0040.03912.00
5.3.40.0060.04212.00
5.3.30.0080.04011.94
5.3.20.0070.04111.73
5.3.10.0080.03611.70
5.3.00.0060.03611.69
5.2.170.0020.0329.18
5.2.160.0050.0349.18
5.2.150.0080.0369.18
5.2.140.0060.0369.18
5.2.130.0050.0299.14
5.2.120.0050.0289.14
5.2.110.0060.0279.15
5.2.100.0050.0279.15
5.2.90.0020.0319.14
5.2.80.0090.0339.14
5.2.70.0090.0309.14
5.2.60.0050.0339.09
5.2.50.0060.0309.07
5.2.40.0090.0259.04
5.2.30.0070.0269.01
5.2.20.0050.0299.00
5.2.10.0060.0268.93
5.2.00.0090.0248.78
5.1.60.0040.0258.07
5.1.50.0040.0288.07
5.1.40.0060.0228.05
5.1.30.0040.0258.40
5.1.20.0020.0308.42
5.1.10.0030.0298.15
5.1.00.0040.0258.15
5.0.50.0050.0196.63
5.0.40.0050.0186.49
5.0.30.0030.0316.30
5.0.20.0020.0216.26
5.0.10.0020.0206.24
5.0.00.0060.0336.23
4.4.90.0050.0184.78
4.4.80.0040.0204.75
4.4.70.0070.0124.75
4.4.60.0040.0154.76
4.4.50.0040.0154.77
4.4.40.0020.0264.71
4.4.30.0050.0134.76
4.4.20.0010.0174.85
4.4.10.0040.0154.85
4.4.00.0030.0264.76
4.3.110.0040.0194.67
4.3.100.0030.0244.66
4.3.90.0000.0204.63
4.3.80.0020.0274.59
4.3.70.0030.0154.63
4.3.60.0060.0124.63
4.3.50.0020.0164.63
4.3.40.0040.0244.54
4.3.30.0030.0173.29
4.3.20.0030.0183.27
4.3.10.0030.0183.22
4.3.00.0130.0236.65

preferences:
148.02 ms | 1394 KiB | 7 Q