If you have to look it up anyway, what difference does it make if it&#x27;s a global or namespaces? If you don&#x27;t know, you don&#x27;t know. As such, your point as stated doesn&#x27;t counteract why polluting global namespaces is a bad thing. There are arguments that could be made (PHP VM specific), but &quot;I didn&#x27;t ever RTFM and&#x2F;or retain it&quot; doesn&#x27;t fly to me personally.