PHP中的@字符到底是做什么的？ [重复]

for example in strip_tags you can use like this:

string strip_tags ( string $str [, string $allowable_tags ] )

but I wondering if it could be use like this:

@strip_tags

and What's the difference?. Thanks

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It is an Error Control Operator.

See here:

http://php.net/manual/en/language.operators.errorcontrol.php