Preg_match differences?
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by sky
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Published on 2010-04-22T07:14:29Z
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2010/04/22
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Hi, i want to ask, what is the meaning or difference between these two line?
if( preg_match_all('/\#([?-?À-ÿ?-??-?a-z0-9\-_]{1,50})/iu', $message, $matches, PREG_PATTERN_ORDER) ){if( preg_match_all('/\#([?-?a-z0-9\-_\x{4e00}-\x{9fa5}]{1,50})/iu', $message, $matches, PREG_PATTERN_ORDER) ) {
and what does the number 3 mean in this line? (Arrow pointing)
if( preg_match_all('/\@([a-zA-Z0-9\-_\x{4e00}-\x{9fa5}]{->3,30})/u', $message, $matches, PREG_PATTERN_ORDER) ) {
Thanks!
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