PHP vs Javascript

What are the similarities and differences between these two languages?

What i've gathered so far

They're both web based scripting languages.
PHP is an open source alternative to Microsoft's. It is a recursive acronym for PhpHypertextProcessing.

What i'd like to know is what can you do in JS but not in PHP and vice versa. Also, could Anusymous be written in JS ?

>>14
Hello, anus;

would you like me to compile a list of your posts that ravage the language and have you compare it to my two spelling mistakes? You are in no position to criticise such mistakes. Besides, I was typing fast OK!.