一段不错的iframe自适应的代码直接拿来用了
<?php echo " <!DOCTYPE html> <html lang='en'> <head> <meta charset='UTF-8'> <meta id='viewport' name='viewport' content='width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no'> <title>测试二</title> <style> html,body,iframe{width: 100%;height: 100%;padding: 0;margin: 0} #wrap{width: 100%;height: 100%;} iframe{border: none;} </style> </head> <body> <div id='wrap'> <iframe src='http://www.163.com'></iframe> </div> </body> </html>"; ?>