Online PHP editor | perf for HcPAU

@ 2012-07-05T11:13:54Z

<?php
// Source: https://bugs.php.net/bug.php?id=62468

class SelfLinked
{
    public $xml;
    public $me;

    public function __construct()
    {
        $this->xml = simplexml_load_string('<?xml version="1.0" encoding="UTF-8"?>
<a><b><c><d><e><f><g><h><i><j><k><l><m><n><o><p><q><r><s><t><u><v><w><x><y><z>waa?
</z></y></x></w></v></u></t></s><r></t></r></q></p></o></o></n></m></l></k></j></i></h></g></f></e></d></c></b></a>');
        $this->me = $this;
    }
}

$b = memory_get_usage();

for ($i = 0; $i < 1000; $i++)
{
    new SelfLinked();
    gc_collect_cycles();
}

var_dump(memory_get_usage() - $b);

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)
5.4.4	0.010	0.050	16.59
5.4.3	0.010	0.050	16.41
5.4.2	0.013	0.043	16.52
5.4.1	0.020	0.053	16.62
5.4.0	0.027	0.063	16.00
5.3.14	0.020	0.043	14.49
5.3.13	0.023	0.073	14.57
5.3.12	0.027	0.050	14.50
5.3.11	0.023	0.040	14.61
5.3.10	0.007	0.057	14.07
5.3.9	0.013	0.050	14.06
5.3.8	0.023	0.070	14.05
5.3.7	0.017	0.047	13.97
5.3.6	0.017	0.047	14.07
5.3.5	0.020	0.060	13.90
5.3.4	0.017	0.073	13.80
5.3.3	0.010	0.043	13.91
5.3.2	0.023	0.070	13.64
5.3.1	0.017	0.040	13.70
5.3.0	0.017	0.040	13.66

preferences:dark modelive preview