Online PHP editor | perf for ltJ3m

@ 2018-04-19T06:36:52Z

<?php
$loop = 100000;

$s = 'a';
$t = 'b';

function t($p1, $p2) {
    return $p1.$p1;
}
    
$f1 = function() use ($s, $t) {
    return $s.$t;
};
    
$f2 = function($s, $t) {
    return $s.$t;
};


$tmp = $loop; 
$start = microtime(true);
while($tmp--) {
    $r = t($s, $t);
}
echo 'Function: '. (microtime(true) - $start). "\n\n";


$tmp = $loop; 
$start = microtime(true);
while($tmp--) {
    $r = $f1();
}
echo 'Closure(use): '. (microtime(true) - $start). "\n\n";

$tmp = $loop; 
$start = microtime(true);
while($tmp--) {
    $r = $f2($s, $t);
}
echo 'Closure(param): '. (microtime(true) - $start). "\n\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).

Version	System time (s)	User time (s)	Memory (MiB)
7.2.4	0.157	0.040	18.11
7.2.3	0.124	0.034	18.15
7.2.2	0.212	0.037	18.18
7.2.1	0.114	0.037	18.24
7.2.0	0.147	0.040	18.01
7.1.16	0.163	0.043	17.01
7.1.15	0.132	0.044	17.00
7.1.14	0.164	0.038	16.77
7.1.13	0.157	0.041	16.82
7.1.12	0.148	0.059	16.95
7.1.11	0.126	0.039	16.22
7.1.10	0.209	0.049	16.09
7.1.9	0.134	0.043	15.82
7.1.8	0.150	0.039	16.36
7.1.7	0.187	0.040	15.26
7.1.6	0.190	0.039	32.96
7.1.5	0.288	0.041	33.03
7.1.4	0.331	0.039	32.65
7.1.3	0.206	0.040	32.45
7.1.2	0.198	0.066	32.88
7.1.1	0.289	0.038	14.85
7.1.0	0.195	0.036	14.79

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