search
Homephp教程PHP源码php 获取图片尺寸

<script>ec(2);</script>

 

$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 /> 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 /> 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>


php 获取图片尺寸





 
Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

MantisBT

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor