PHP 正则替换img标签中的width function removeImgAttr($content) { $content = preg_replace( array( '/(<img [^<>]*?)width=.+?[\'|\"]/', '/(<img.*?)((height)=[\'"]+[0-9|%]+[\'"]+)/', '/(<img.*?)((style)=[\'"]+(.*?)+[\'"]+)/', ) , array('$1 width="90%" ', '$1', '$1') , $content); return $content; }