3v4l.org

run code in 300+ PHP versions simultaneously
<?php gc_enable(); class x { public $value; public function __construct($value) { $this->value = $value; } public function __unset(){ echo "Working"; unset($this->value); } } $array = array(); for($i = 0; $i < 50000; $i++) { $array[] = md5('Hallo'); } $x = new x($array); var_dump(number_format(memory_get_usage(), 0, ',', '.')) . "\n"; var_dump(number_format(memory_get_usage(true), 0,',','.')) . "\n"; unset($array); unset($x); var_dump(number_format(memory_get_usage(), 0, ',', '.')) . "\n"; var_dump(number_format(memory_get_usage(true), 0,',','.')) . "\n";

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)
5.4.340.0060.03812.03
5.4.320.0080.04012.51
5.4.310.0150.04112.51
5.4.300.0130.03612.52
5.4.290.0060.04512.51
5.4.280.0160.03812.41
5.4.270.0120.03412.41
5.4.260.0130.03812.41
5.4.250.0050.04112.41
5.4.240.0070.04112.41
5.4.230.0030.04612.40
5.4.220.0080.04512.40
5.4.210.0120.04112.40
5.4.200.0070.05112.40
5.4.190.0070.04212.40
5.4.180.0040.03812.40
5.4.170.0080.03412.41
5.4.160.0110.04112.41
5.4.150.0100.04212.40
5.4.140.0090.04112.08
5.4.130.0050.04712.07
5.4.120.0030.03912.03
5.4.110.0100.03412.03
5.4.100.0060.03712.02
5.4.90.0040.03812.03
5.4.80.0090.04012.03
5.4.70.0100.04012.02
5.4.60.0060.03812.02
5.4.50.0030.03912.02
5.4.40.0060.03612.01
5.4.30.0060.04012.00
5.4.20.0060.03712.01
5.4.10.0050.03412.01
5.4.00.0060.03511.50
5.3.290.0060.03912.80
5.3.280.0070.03712.71
5.3.270.0060.03912.72
5.3.260.0080.03712.72
5.3.250.0060.03712.72
5.3.240.0050.03712.72
5.3.230.0090.03912.71
5.3.220.0030.03912.68
5.3.210.0040.04512.68
5.3.200.0070.03612.68
5.3.190.0060.03812.68
5.3.180.0120.03112.68
5.3.170.0050.04012.67
5.3.160.0090.03312.68
5.3.150.0110.03812.67
5.3.140.0040.04212.66
5.3.130.0080.04212.66
5.3.120.0060.03912.66
5.3.110.0060.04012.66
5.3.100.0070.04212.12
5.3.90.0050.04312.10
5.3.80.0060.03912.09
5.3.70.0080.03812.09
5.3.60.0050.03712.08
5.3.50.0060.03512.03
5.3.40.0050.03812.03
5.3.30.0050.04011.99
5.3.20.0070.03411.77
5.3.10.0050.03411.73
5.3.00.0090.03811.72
5.2.170.0040.0319.23
5.2.160.0020.0319.22
5.2.150.0030.0329.22
5.2.140.0020.0339.21
5.2.130.0070.0269.18
5.2.120.0080.0259.18
5.2.110.0040.0299.19
5.2.100.0050.0289.18
5.2.90.0040.0299.18
5.2.80.0070.0339.18
5.2.70.0150.0449.18
5.2.60.0060.0419.13
5.2.50.0060.0359.10
5.2.40.0070.0279.07
5.2.30.0030.0319.05
5.2.20.0020.0349.04
5.2.10.0040.0298.95
5.2.00.0040.0308.82
5.1.60.0070.0208.09
5.1.50.0040.0258.09
5.1.40.0010.0278.07
5.1.30.0050.0248.42
5.1.20.0020.0288.44
5.1.10.0020.0338.17
5.1.00.0060.0298.16
5.0.50.0040.0206.66
5.0.40.0070.0196.51
5.0.30.0020.0366.33
5.0.20.0030.0206.30
5.0.10.0050.0196.28
5.0.00.0020.0326.27
4.4.90.0030.0174.78
4.4.80.0050.0194.75
4.4.70.0030.0174.75
4.4.60.0010.0164.75
4.4.50.0020.0164.77
4.4.40.0030.0254.71
4.4.30.0030.0164.76
4.4.20.0030.0164.85
4.4.10.0020.0164.85
4.4.00.0020.0274.76
4.3.110.0020.0164.67
4.3.100.0020.0154.66
4.3.90.0020.0154.63
4.3.80.0020.0254.59
4.3.70.0030.0144.63
4.3.60.0030.0144.63
4.3.50.0030.0154.63
4.3.40.0020.0254.54
4.3.30.0030.0153.30
4.3.20.0000.0183.28
4.3.10.0010.0173.23
4.3.00.0000.0237.49

preferences:
144.44 ms | 1394 KiB | 7 Q