Confusion in PHP variables -

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can use same variable name in php used data. example: variable $_get['v'], can use $v variable other purpose or lead ambiguity?

$_get['v'] , $v in no way tied , occupy different memory. can use both names.

if change default php configuration enable register_globals, $v created $_get['v'] if such query string parameter existed, still overwrite , use separate variable.

register_globals has not been enabled in default php configuration several years.


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