用PHP或JS获取图片大小,高宽尺寸
时间:2014-06-09 16:39来源: 作者: 点击:
次
?php $arr = getimagesize ( images/album_01.gif ); echo $arr [3]; $strarr = explode ( , $arr [3]); echo $strarr [1]; ? HTML HEAD TITLE演示图片等比例缩小/TITLE script function Wa_SetImgAutoSize(img) { //varimg=document.all.img1;//获取图片
- <?php
- $arr=getimagesize("images/album_01.gif");
- echo $arr[3];
- $strarr=explode(""",$arr[3]);
- echo $strarr[1];
- ?>
- <HTML>
-
- <HEAD>
- <TITLE>演示图片等比例缩小</TITLE>
- <script>
- function Wa_SetImgAutoSize(img)
- {
-
- var MaxWidth=200;
- var MaxHeight=100;
- var HeightWidth=img.offsetHeight/img.offsetWidth;
- var WidthHeight=img.offsetWidth/img.offsetHeight;
- alert("test" img.offsetHeight img.fileSize);
- if(img.offsetHeight>1) alert(img.offsetHeight);
- if(img.readyState!="complete"){
- return false;
- }
-
- if(img.offsetWidth>MaxWidth){
- img.width=MaxWidth;
- img.height=MaxWidth*HeightWidth;
- if(img.offsetHeight>MaxHeight){
- img.height=MaxHeight;
- img.width=MaxHeight*WidthHeight;
- }
- }
-
- function CheckImg(img)
- {
- var message="";
- var MaxWidth=1;
- var MaxHeight=1;
-
- if(img.readyState!="complete"){
- return false;
- }
- if(img.offsetHeight>MaxHeight) message =" 高度超额:" img.offsetHeight;
- if(img.offsetWidth>MaxWidth) message =" 宽度超额:" img.offsetWidth;
- if(message!="") alert(message);
- }
- </script>
- </HEAD>
- <BODY>
- <img src="images/frequency.gif" border=0 id="img1" onload="CheckImg(this);">
- <br>
- <input id=inp type="file" onpropertychange="img1.src=this.value;">
- </BODY>
- </HTML>
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