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<title>php爱好者|phpfans.net|---判断远程图片是否存在，否则替换成默认图片</title>
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<p>判断远程图片是否存在，不存在的话替换成默认的图片，代码如下：</p>
<p>第一种情况存在：<IMG src="http://www.163.com/images/neteaselogo.gif" onerror="javascript:this.src='http://www.phpfans.net/bbs/images/default/logo.gif'"></p>
<IMG src="http://www.163.com/images/neteaselogo.gif" onerror="javascript:this.src='http://www.phpfans.net/bbs/images/default/logo.gif'">
<p>第二种情况不存在，替换成本站的logo：<IMG src="http://www.163.com/images/neteaselogo1.gif" onerror="javascript:this.src='http://www.phpfans.net/bbs/images/default/logo.gif'"></p>
<IMG src="http://www.163.com/images/neteaselogo1.gif" onerror="javascript:this.src='http://www.phpfans.net/bbs/images/default/logo.gif'">
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Html页
<a href="javascript:void(0);" mce_href="javascript:void(0);" ><img id="SubmitFeedback" src="/images/comment_btn.gif" mce_src="images/comment_btn.gif" /></a>
脚本
$(document).ready(function() {
alert("页面刷新&q ......
