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 $key=>$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)
5.4.310.0060.03612.50
5.4.300.0030.03812.50
5.4.290.0070.03612.50
5.4.280.0060.03412.39
5.4.270.0040.03712.39
5.4.260.0050.03712.39
5.4.250.0080.03912.39
5.4.240.0060.03812.39
5.4.230.0070.03912.39
5.4.220.0090.03512.38
5.4.210.0040.03612.38
5.4.200.0070.04112.39
5.4.190.0060.03912.38
5.4.180.0050.04712.38
5.4.170.0070.04012.39
5.4.160.0060.03612.39
5.4.150.0080.03412.38
5.4.140.0070.04312.07
5.4.130.0050.04112.05
5.4.120.0060.03812.02
5.4.110.0080.03112.02
5.4.100.0040.04412.01
5.4.90.0040.04412.02
5.4.80.0050.03712.02
5.4.70.0100.03512.01
5.4.60.0040.04012.01
5.4.50.0060.03412.01
5.4.40.0080.03212.00
5.4.30.0050.03612.00
5.4.20.0080.03211.99
5.4.10.0060.03412.00
5.4.00.0030.03711.49
5.3.280.0050.03812.71
5.3.270.0040.04012.72
5.3.260.0050.04012.72
5.3.250.0060.03612.72
5.3.240.0090.03412.72
5.3.230.0090.03412.71
5.3.220.0090.04112.68
5.3.210.0090.04012.68
5.3.200.0080.03612.68
5.3.190.0090.03712.67
5.3.180.0070.03512.68
5.3.170.0050.03612.67
5.3.160.0070.03412.68
5.3.150.0110.03512.68
5.3.140.0060.03812.66
5.3.130.0040.04012.66
5.3.120.0050.04112.66
5.3.110.0070.04812.66
5.3.100.0050.04112.12
5.3.90.0080.03412.09
5.3.80.0050.03812.08
5.3.70.0080.03612.08
5.3.60.0050.03712.07
5.3.50.0050.03712.00
5.3.40.0050.03712.00
5.3.30.0110.03711.95
5.3.20.0090.04011.73
5.3.10.0070.03811.70
5.3.00.0060.03611.69
5.2.170.0070.0359.18
5.2.160.0090.0319.18
5.2.150.0030.0399.19
5.2.140.0060.0299.18
5.2.130.0060.0319.14
5.2.120.0040.0349.14
5.2.110.0050.0339.15
5.2.100.0050.0309.14
5.2.90.0040.0309.14
5.2.80.0050.0299.14
5.2.70.0090.0319.14
5.2.60.0050.0299.10
5.2.50.0040.0309.07
5.2.40.0060.0359.04
5.2.30.0080.0269.02
5.2.20.0020.0319.01
5.2.10.0060.0318.93
5.2.00.0030.0308.79
5.1.60.0060.0218.07
5.1.50.0030.0258.07
5.1.40.0050.0248.05
5.1.30.0080.0238.40
5.1.20.0030.0328.42
5.1.10.0060.0248.14
5.1.00.0020.0278.15
5.0.50.0040.0206.64
5.0.40.0030.0266.50
5.0.30.0080.0356.31
5.0.20.0060.0216.28
5.0.10.0030.0206.26
5.0.00.0020.0376.25
4.4.90.0040.0144.78
4.4.80.0050.0174.75
4.4.70.0030.0154.75
4.4.60.0020.0204.75
4.4.50.0040.0194.77
4.4.40.0030.0244.71
4.4.30.0040.0144.76
4.4.20.0030.0184.85
4.4.10.0020.0174.85
4.4.00.0060.0294.76
4.3.110.0030.0174.67
4.3.100.0040.0204.66
4.3.90.0050.0124.64
4.3.80.0030.0264.58
4.3.70.0060.0114.63
4.3.60.0030.0154.63
4.3.50.0040.0164.63
4.3.40.0020.0244.54
4.3.30.0010.0183.30
4.3.20.0010.0183.28
4.3.10.0020.0173.24
4.3.00.0000.0237.34

preferences:
145.31 ms | 1394 KiB | 7 Q