- memory_get_usage: documentation ( source)
- asort: documentation ( source)
- rand: documentation ( source)
<?php
$memory = memory_get_usage(true);
print $memory ."\n";
$keys = array();
for ($i = 0; $i<1000; $i++) {
$keys[] = 'pref:keyname:' . rand(1000000, 9999999);
}
asort($keys);
print memory_get_usage(true) - $memory;