Home Backend Development PHP Tutorial 奇怪的有关问题 为什么自定义函数 不可以用其他内置函数了

奇怪的有关问题 为什么自定义函数 不可以用其他内置函数了

Jun 13, 2016 pm 12:25 PM
name nbsp replace url

奇怪的问题 为什么自定义函数 不可以用其他内置函数了

<br /><br /><br /><br /><br /><br />$PostsArray[0]['Content'] = preg_replace("/<img  src="/static/imghw/default1.png"  data-src="'.$url.'"  class="lazy"  src=\"([^ alt="奇怪的有关问题 为什么自定义函数 不可以用其他内置函数了" ><]*)\" alt=\"([^><]*)>/i",aimg('\\1','\\2'), $PostsArray[0]['Content']);<br /><br /><br />function aimg($url,$name){<br />	//$name=strstr('gif',$url);<br />	$name2=$name;<br />	$name= strpos($name2,'gif');<br />	if(strstr($url,'.gif')!=false){<br /><br />		//$name='<img src="/static/imghw/default1.png"  data-src="'.$url.'"  class="lazy"  .$url.'" alt="'.$name.'>';<br />	}else{<br /><br />	}<br />	return $name;<br /><br />}<br /><br /><br />
Copy after login


$url $name取值都是正常 但是我用替换函数 其他函数都没用 为什么呢?
------解决思路----------------------
你没有遵守 preg_replace 的规则
preg_replace 的第二个参数是字符串或数组,并不是函数
preg_replace_callbact 的第二个参数才是函数
------解决思路----------------------
preg_replace 改为 preg_replace_callback

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