- memory_get_usage: documentation ( source)
- array_fill: documentation ( source)
<?php
$max = 100;
$arr = array_fill(0, $max, 1);
$mem = memory_get_usage(true);
$count = 0;
foreach ($arr as $key=>$val)
{
$count ++;
$arr[$max+1] = 9999;
}
echo 1;
echo $count.': '.memory_get_usage(true)-$mem;