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php替换src的方法:可以利用preg_replace函数并结合正则表达式来实现替换,如【preg_replace($pregRule, '
可以使用正则表达式批量替换Img中src内容。
函数介绍:
preg_replace 函数执行一个正则表达式的搜索和替换。
(推荐教程:php视频教程)
实现代码:
/** * 图片地址替换成压缩URL * @param string $content 内容 * @param string $suffix 后缀 */ function get_img_thumb_url($content="",$suffix="!c550x260.jpg") { $pregRule = "/<[img|IMG].*?src=[\'|\"](.*?(?:[\.jpg|\.jpeg|\.png|\.gif|\.bmp]))[\'|\"].*?[\/]?>/"; $content = preg_replace($pregRule, '<img src="${1}'.$suffix.'" style="max-width:100%">', $content); return $content; }实际代码:
$content = '<a href="#"><img class="center" src="https://xxx.com/styles/images/default.jpg"></a>' .'<p><img class="center" src="https://img.xxx.com/images/219_Ig5eZI.jpg" style="max-width: 100%;"></p>'; $newct = get_img_thumb_url($content); print_r($newct);输出结果:
<a href="#"><img src="https://xxx.com/styles/images/default.jpg!c550x260.jpg" style="max-width:100%"></a><p><img src="https://img.xxx.com/images/219_Ig5eZI.jpg!c550x260.jpg" style="max-width:100%"></p>相关推荐:php培训
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