Implementing multi-image upload preview function based on HTML
Recently, I have been using the multi-image upload preview function on web pages, and I feel that it is quite good. Today I take the time to share with you the multi-image upload preview function based on HTML. Let’s take a look.
I have recently written I made a script for uploading multiple images on a web page. It feels very practical. I won’t go into the details. I’ll just paste the code~
<head>
<style>
.pro_img{ margin-left:10px;margin-top:10px;width:300px;height: 300px;background-color: black; --border-radius:999em; overflow:hidden;float:left; --margin:5% 35%;position: relative;}
.pro_img img{ position: absolute;left: 50%;top:50%; transform: translate(-50%,-50%);width: 100%
}
.pro_img {position:relative}
.pro_img input{position: absolute;width: 100%;height: 100%;margin:0;opacity:0;z-index: 100;}
</style>
<script type="text/javascript" src="jquery.min.js"></script>
<script>
name_pic=1;
function t1(o){
//alert(name_pic);
if(o==1 || name_pic!=1){
var file="file"+o;
var img="img"+o;
var hid="hidden"+o;
var aa="a"+o;
}else{
var file="file"+name_pic;
var img="img"+name_pic;
var hid="hidden"+name_pic;
var aa="a"+name_pic;
}
var docObj = document.getElementById(file);
var imgObjPreview = document.getElementById(img);
var hidden=document.getElementById(hid);
// alert(hidden);
if (docObj.files && docObj.files[0]) {
hidden.src=window.URL.createObjectURL(docObj.files[0]); //获取file文件的路径
hidden.onload=function(){
var width=hidden.width;
var height=hidden.height;
var a=document.getElementById(aa);
if(width>height){
imgObjPreview.style.cssText='width:100%'; //重写css样式
}else{
imgObjPreview.style.cssText='height:100%;width:auto;';
}
imgObjPreview.src = window.URL.createObjectURL(docObj.files[0]);
imgObjPreview.style.display = 'block';
}
}else{
return false;
}
if(o==name_pic){
var count=$('.pro_img').length;
if(count<6){
name_pic++;
var pic_p="<a class='pro_img' id='a"+name_pic+"' ><input type='file' id='file"+name_pic+"' accept='image/*' multiple='multiple' name='pic[]' onchange='t1("+name_pic+")'/><img src='upload.jpg' id='img"+name_pic+"'></a><img id='hidden"+name_pic+"' style='display:none;'>";
$('#upload').append(pic_p);
}
}
}
</script>
</head>
<!-- multiple='multiple' -->
<form action="http://192.168.0.7/index.php/Home/Pic/upload" enctype="multipart/form-data" method="post">
<p id='upload'>
<a class='pro_img' id='a1' >
<input type='file' id='file1' accept='image/*' multiple='multiple' name='pic[]' onchange='t1(1)'/>
<img src='upload.jpg' id='img1'></a>
<img id='hidden1' style='display:none;'>
</p>
<input type='submit' value="上传" />
</form>Replace some upload.png by yourself This picture can meet your needs. If there is no response when clicking on the picture, don't forget to add jquery
The above is the editor's introduction to the multi-image upload preview function based on HTML. I hope it will be helpful to everyone. It's helpful. If you have any questions, please leave me a message and I will reply to you in time. I would also like to thank you all for your support of the PHP Chinese website!
For more articles related to the multi-image upload preview function based on HTML, please pay attention to the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
Is HTML easy to learn for beginners?
Apr 07, 2025 am 12:11 AM
HTML is suitable for beginners because it is simple and easy to learn and can quickly see results. 1) The learning curve of HTML is smooth and easy to get started. 2) Just master the basic tags to start creating web pages. 3) High flexibility and can be used in combination with CSS and JavaScript. 4) Rich learning resources and modern tools support the learning process.
The Roles of HTML, CSS, and JavaScript: Core Responsibilities
Apr 08, 2025 pm 07:05 PM
HTML defines the web structure, CSS is responsible for style and layout, and JavaScript gives dynamic interaction. The three perform their duties in web development and jointly build a colorful website.
Understanding HTML, CSS, and JavaScript: A Beginner's Guide
Apr 12, 2025 am 12:02 AM
WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.
Gitee Pages static website deployment failed: How to troubleshoot and resolve single file 404 errors?
Apr 04, 2025 pm 11:54 PM
GiteePages static website deployment failed: 404 error troubleshooting and resolution when using Gitee...
What is an example of a starting tag in HTML?
Apr 06, 2025 am 12:04 AM
AnexampleofastartingtaginHTMLis,whichbeginsaparagraph.StartingtagsareessentialinHTMLastheyinitiateelements,definetheirtypes,andarecrucialforstructuringwebpagesandconstructingtheDOM.
How to use CSS3 and JavaScript to achieve the effect of scattering and enlarging the surrounding pictures after clicking?
Apr 05, 2025 am 06:15 AM
To achieve the effect of scattering and enlarging the surrounding images after clicking on the image, many web designs need to achieve an interactive effect: click on a certain image to make the surrounding...
HTML, CSS, and JavaScript: Essential Tools for Web Developers
Apr 09, 2025 am 12:12 AM
HTML, CSS and JavaScript are the three pillars of web development. 1. HTML defines the web page structure and uses tags such as, etc. 2. CSS controls the web page style, using selectors and attributes such as color, font-size, etc. 3. JavaScript realizes dynamic effects and interaction, through event monitoring and DOM operations.
How to implement adaptive layout of Y-axis position in web annotation?
Apr 04, 2025 pm 11:30 PM
The Y-axis position adaptive algorithm for web annotation function This article will explore how to implement annotation functions similar to Word documents, especially how to deal with the interval between annotations...
