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<!doctype html> <html> <head> <meta charset=utf-8> <head> <title>ajax 文件上传~~</title> </head> <script> window.onload=function(){ var form=document.getElementsByTagName(‘form‘)[0]; form.onsubmit=function(){ var iframe=document.createElement(‘iframe‘); iframe.src=‘do_upload.php‘; var iframe_name="iframe"+Math.random(); iframe.name=iframe_name; document.body.appendChild(iframe); iframe.style.width=‘0px‘; iframe.style.height=‘0px‘; iframe.frameBorder=‘0‘; form.target=iframe_name; } } </script> <body> <form enctype=‘multipart/form-data‘ method=‘post‘ action=‘do_upload.php‘> 请选择文件:<input type=‘file‘ name=‘myFile‘/><br/> <input type=‘submit‘/> <div id=‘msg‘></div> </form> </body> </html>
PHP部分
<?php $up_file=$_FILES[‘myFile‘]; if($up_file[‘error‘]===0){ if(!file_exists(‘./imgs‘)){ mkdir(‘./imgs‘); } $save_name=rand().$up_file[‘name‘]; $bool=move_uploaded_file($up_file[‘tmp_name‘],"./imgs/$save_name"); if($bool){ $msg=‘上传成功!‘; }else{ $msg=‘上传失败!‘; } } echo "<script> var msg=parent.document.getElementById(‘msg‘); msg.innerHTML=‘<font color=red>$msg</forn>‘; </script>"; ?>
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原文地址：http://www.cnblogs.com/leejersey/p/5212348.html
