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php 全角半角正则表达式代码

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Jun 08, 2016 pm 05:25 PM

contentkeywordltquotreplace

php教程全角半角正则表达式代码

//$keyword='破坏';//当值为破坏时可以加上超连接
$keyword='真皮层';//当值为直皮层时则不能匹配加上招连接

$url='www.111cn.net;

$content='激光光束透过表皮和真皮层，破坏色素细胞和色素颗粒';

$content = preg_replace( '|(?$1', $content, 1);

//$content = preg_replace( '|(?$1$2', $content, 1); //这样也无法匹配
//有朋友遇到过这样的情况吗？应该如何解决呢？我试过了但凡能试的正则修正符，都没有用。

$keyword='破坏';//当值为破坏时可以加上超连接

$keyword2='真皮层';/

/当值为直皮层时则不能匹配加上招连接

$url='www.111cn.net';$content='激光光束透过表皮和真皮层，破坏色素细胞和色素颗粒';

$a=preg_replace('/'.$keyword2.'/i',''.$keyword2.'',$content);

echo str_replace($keyword,''.$keyword.'',$a);
?>

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