Online PHP editor | output for XIQhR

@ 2018-09-14T14:21:29Z

<?php

class NonLeakingClass
{
    protected $x=[1,2,3,4,5,6,7,8,9,10];
    public function __counstruct(){
        
    }
}

class NonLeakingClass2
{
    protected $x=[1,2,3,4,5,6,7,8,9,10];
    public function __counstruct(){
        
    }
}
function test($x){
$ret = [];
for($i=0;$i<(1023/2)*$x;$i++){
$ret[] = new NonLeakingClass();
$ret[] = new NonLeakingClass2();
}
return $ret;

}
echo "Test empty object memory leakage" . PHP_EOL; // WARNING: Uncomment this line and PHP stops to leak memory on object creation, strange :)
for ($h = 1; $h < 5; $h++) {
    echo "test $h \n\n";
    var_dump(memory_get_usage(false));
    $a = test($h);
    unset($a);
    gc_collect_cycles();
    var_dump(memory_get_usage(false));
}

exit;

Output for 7.3.0 - 7.3.12: Test empty object memory leakage test 1 int(392464) int(400656) test 2 int(400656) int(400656) test 3 int(400656) int(417040) test 4 int(417040) int(417040)
Output for 7.2.0 - 7.2.24: Test empty object memory leakage test 1 int(388568) int(396760) test 2 int(396760) int(396760) test 3 int(396760) int(413144) test 4 int(413144) int(413144)
Output for 7.1.25 - 7.1.33: Test empty object memory leakage test 1 int(351960) int(360152) test 2 int(360152) int(360152) test 3 int(360152) int(376536) test 4 int(376536) int(376536)
Output for 7.1.0 - 7.1.1, 7.1.7 - 7.1.22: Test empty object memory leakage test 1 int(352032) int(360224) test 2 int(360224) int(360224) test 3 int(360224) int(376608) test 4 int(376608) int(376608)
Output for 7.1.2 - 7.1.6: Test empty object memory leakage test 1 int(352328) int(360520) test 2 int(360520) int(360520) test 3 int(360520) int(376904) test 4 int(376904) int(376904)

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