Below we give a PHP regular expression matching specified label in the string implementation program code. Friends who need to learn can refer to this tutorial.
In PHP applications, regular expressions are mainly used for:
•Regular matching: Match corresponding content according to regular expressions
•Regular replacement: match content based on regular expressions and replace
•Regular segmentation: Split strings according to regular expressions
Commonly used
preg_match_all()
The preg_match_all() function is used for global matching of regular expressions. It returns the number of times the entire pattern matches successfully (possibly zero), and returns FALSE if an error occurs.
Syntax:
int preg_match_all( string pattern, string subject, array matches [, int flags ] )
Example
$str = "二 broad Ganjiakou East #tag1 #tag2 #tag3. #tag4, all sent $1234 ¥xc,cvm , ¥12,dflksjfHow #tag5.x
The code is as follows
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#tag6.cvxcv"";
preg_match_all('/#([a-zA-Z0-9x7f-xff]+)/', $str, $mat);
Regular matching Chinese characters are slightly different depending on the page encoding:
u4e00-u9fa5 (Chinese) x3130-x318F (Korean xAC00-xD7A3 (Korean)
u0800-u4e00 (Japanese)
http://www.bkjia.com/PHPjc/631584.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/631584.htmlTechArticle Below we give a PHP regular expression matching specified label in the string implementation program code, there is need to learn Friends can refer to this tutorial. In PHP applications, regular expressions mainly...
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