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<?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 img=document.all.img1;//获取图片 var MaxWidth=200;//设置图片宽度界限 var MaxHeight=100;//设置图片高度界限 var HeightWidth=img.offsetHeight/img.offsetWidth;//设置高宽比 var WidthHeight=img.offsetWidth/img.offsetHeight;//设置宽高比 alert("test" img.offsetHeight img.fileSize); if(img.offsetHeight>1) alert(img.offsetHeight); if(img.readyState!="complete"){ return false;//确保图片完全加载 } 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;//设置图片宽度界限 var MaxHeight=1;//设置图片高度界限 if(img.readyState!="complete"){ return false;//确保图片完全加载 } 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>