3v4l.org

run code in 300+ PHP versions simultaneously
<?php $max = 1000000; $arr = range(1,$max,3); $arr2 = range(1,$max,2); $arr = array_merge($arr,$arr2); $time = -microtime(true); $res1 = array_unique($arr); $time += microtime(true); var_dump("deduped to ".count($res1)." in ".$time); $time = -microtime(true); $res2 = array(); foreach($arr as $val) { $res2[$val] = true; } $res2 = array_keys($res2); $time += microtime(true); var_dump("<br />deduped to ".count($res2)." in ".$time);

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)
5.4.310.0030.04112.50
5.4.300.0120.03212.50
5.4.290.0060.04012.49
5.4.280.0070.03412.39
5.4.270.0080.03312.39
5.4.260.0060.04212.39
5.4.250.0050.03812.39
5.4.240.0070.03912.39
5.4.230.0070.03612.39
5.4.220.0060.03512.38
5.4.210.0040.03612.38
5.4.200.0040.03812.39
5.4.190.0080.04012.38
5.4.180.0060.04112.38
5.4.170.0040.03812.39
5.4.160.0030.03812.39
5.4.150.0050.03612.38
5.4.140.0040.03812.07
5.4.130.0050.03512.05
5.4.120.0070.03212.02
5.4.110.0030.03712.02
5.4.100.0030.03712.02
5.4.90.0060.04112.01
5.4.80.0090.03712.02
5.4.70.0040.03612.01
5.4.60.0040.03812.02
5.4.50.0060.04512.02
5.4.40.0080.04312.00
5.4.30.0080.03311.99
5.4.20.0050.03611.99
5.4.10.0090.03912.00
5.4.00.0080.03311.48
5.3.280.0070.03712.71
5.3.270.0110.03412.72
5.3.260.0060.03912.72
5.3.250.0050.04112.72
5.3.240.0060.04112.72
5.3.230.0050.04612.71
5.3.220.0060.04112.68
5.3.210.0050.04312.68
5.3.200.0070.03812.68
5.3.190.0070.03612.68
5.3.180.0070.03512.68
5.3.170.0030.03812.67
5.3.160.0080.03512.67
5.3.150.0060.03712.68
5.3.140.0060.04212.66
5.3.130.0060.03912.66
5.3.120.0050.04012.66
5.3.110.0070.03712.66
5.3.100.0080.03412.11
5.3.90.0050.03612.09
5.3.80.0030.03712.08
5.3.70.0050.03612.08
5.3.60.0050.03612.06
5.3.50.0080.03412.00
5.3.40.0060.03512.00
5.3.30.0050.03511.95
5.3.20.0050.03611.73
5.3.10.0030.03711.70
5.3.00.0080.04111.69
5.2.170.0060.0349.18
5.2.160.0060.0299.18
5.2.150.0060.0359.19
5.2.140.0030.0349.18
5.2.130.0030.0309.14
5.2.120.0070.0329.14
5.2.110.0070.0319.15
5.2.100.0060.0269.14
5.2.90.0080.0339.14
5.2.80.0060.0319.14
5.2.70.0050.0379.14
5.2.60.0080.0289.09
5.2.50.0010.0339.06
5.2.40.0050.0339.04
5.2.30.0040.0299.02
5.2.20.0070.0299.00
5.2.10.0050.0278.93
5.2.00.0060.0288.79
5.1.60.0030.0278.07
5.1.50.0050.0278.07
5.1.40.0030.0308.05
5.1.30.0040.0268.40
5.1.20.0040.0288.42
5.1.10.0020.0278.14
5.1.00.0040.0258.15
5.0.50.0040.0256.63
5.0.40.0060.0246.50
5.0.30.0030.0316.31
5.0.20.0040.0186.28
5.0.10.0030.0196.26
5.0.00.0030.0306.25
4.4.90.0030.0164.78
4.4.80.0010.0164.75
4.4.70.0010.0234.75
4.4.60.0060.0144.76
4.4.50.0010.0164.77
4.4.40.0040.0314.70
4.4.30.0030.0144.76
4.4.20.0040.0204.85
4.4.10.0010.0224.84
4.4.00.0040.0274.76
4.3.110.0030.0194.67
4.3.100.0030.0184.66
4.3.90.0020.0144.63
4.3.80.0040.0224.58
4.3.70.0040.0184.63
4.3.60.0020.0194.63
4.3.50.0010.0174.63
4.3.40.0010.0254.54
4.3.30.0020.0183.30
4.3.20.0030.0143.28
4.3.10.0020.0153.24
4.3.00.0170.0277.34

preferences:
140.69 ms | 1386 KiB | 7 Q