上一篇博客是上传功能，本篇是上传后图片预览和更改：
代码如下：
1.yulan.php
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<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="content-type" content="text/html; charset=utf-8" /><title>无标题文档</title><style type="text/css">#yl{ width:200px; height:300px; background-image:url(images/timg1.jpg); background-size:200px 300px;}#file{ width:200px; height:300px; float:left; opacity:0;}</style></head><body><form id="sc" action="ylchuli.php" method="post" enctype="multipart/form-data" target="shangchuan"> <input type="hidden" name="tp" value="" id="tp" /> <div id="yl"> <input type="file" name="file" id="file" onchange="document.getelementbyid('sc').submit()" /> </div> </form><iframe style="display:none" name="shangchuan" id="shangchuan"></iframe></body><script type="text/javascript">//回调函数,调用该方法传一个文件路径，改变背景图function showimg(url){ var div = document.getelementbyid("yl"); div.style.backgroundimage = "url("+url+")"; document.getelementbyid("tp").value = url;}</script></html> |
2.ylchuli.php
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<?phpif($_files["file"]["error"]){ echo $_files["file"]["error"];}else{ if(($_files["file"]["type"]=="image/jpeg" || $_files["file"]["type"]=="image/png")&& $_files["file"]["size"]<1024000) { $fname = "./images/".date("ymdhis").$_files["file"]["name"]; $filename = iconv("utf-8","gb2312",$fname); if(file_exists($filename)) { echo "<script>alert('该文件已存在！');</script>"; } else { move_uploaded_file($_files["file"]["tmp_name"],$filename); $delurl = iconv("utf-8","gb2312",$_post["tp"]); unlink($delurl); //删除文件 echo "<script>parent.showimg('{$fname}');</script>"; } }} |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
