Home Backend Development PHP Tutorial preg_match取值有关问题

preg_match取值有关问题

Jun 13, 2016 pm 01:31 PM
content img match quot

preg_match取值问题
$body= preg_match取值有关问题  preg_match取值有关问题 ;

preg_match('//i', $body, $match);
这样取得的是最后一个src,不是第一个

$body= preg_match取值有关问题
 preg_match取值有关问题 ;
图片间加
后就没问题,怎么回事


------解决方案--------------------
问题在于.+,你用了很多贪婪匹配,自然会匹配到最后面的img,可以? U去修饰
------解决方案--------------------
preg_match('//i', $body, $match);

你的范围没限死。.+ 范围太广了。又没有限制贪婪匹配。

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