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用PHP或JS获取图片大小、高宽尺寸

WBOY
WBOYOriginal
2016-06-13 11:16:09967browse

 

$arr=getimagesize("images/album_01.gif");
echo $arr[3];
$strarr=explode(""",$arr[3]);
echo $strarr[1];
?>





<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 />}<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 ="r高度超额:" img.offsetHeight;<br />if(img.offsetWidth>MaxWidth) message ="r宽度超额:" img.offsetWidth;<br />if(message!="") alert(message);<br />}<br /></script>








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