$arr=getimagesize("images/album_01.gif");
echo $arr[3];
$strarr=explode(""",$arr[3]);
echo $strarr[1];
?>
演示图片等比例缩小
<script><br />
function Wa_SetImgAutoSize(img)<br />
{<br />
//var img=document.all.img1;//获取图片<br />
var MaxWidth=200;//设置图片宽度界限<br />
var MaxHeight=100;//设置图片高度界限<br />
var HeightWidth=img.offsetHeight/img.offsetWidth;//设置高宽比<br />
var WidthHeight=img.offsetWidth/img.offsetHeight;//设置宽高比<br />
alert("test" img.offsetHeight img.fileSize);<br />
if(img.offsetHeight>1) alert(img.offsetHeight);<br />
if(img.readyState!="complete"){<br />
return false;//确保图片完全加载<br />
}<br />
<br />
if(img.offsetWidth>MaxWidth){<br />
img.width=MaxWidth;<br />
img.height=MaxWidth*HeightWidth;<br />
if(img.offsetHeight>MaxHeight){<br />
img.height=MaxHeight;<br />
img.width=MaxHeight*WidthHeight;<br />
}<br />
}<br />
<br />
function CheckImg(img)<br />
{<br />
var message="";<br />
var MaxWidth=1;//设置图片宽度界限<br />
var MaxHeight=1;//设置图片高度界限<br />
<br />
if(img.readyState!="complete"){<br />
return false;//确保图片完全加载<br />
}<br />
if(img.offsetHeight>MaxHeight) message =" 高度超额:" img.offsetHeight;<br />
if(img.offsetWidth>MaxWidth) message =" 宽度超额:" img.offsetWidth;<br />
if(message!="") alert(message);<br />
}<br />
</script>
http://www.bkjia.com/PHPjc/631976.html www.bkjia.com true http://www.bkjia.com/PHPjc/631976.html TechArticle ? $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_SetImgAuto...