ThinkPHP is a popular lightweight PHP framework in China. One of the main reasons for its popularity in China is that its documentation is very sound and complete, and the comments in its source code are all in Chinese, which is convenient. Learn from programmers with poor English proficiency.
Image uploading is a very common function in websites. ThinkPHP also has its own image upload class (UploadFile.class.php) and image model class (Image.class.php). It is convenient for us to implement the image upload function.
1. We first need to create a table
<span 1</span> CREATE TABLE <span IF</span><span NOT EXISTS `tp_image` ( </span><span 2</span> `id` int(11) NOT <span NULL</span> AUTO_INCREMENT, <span 3</span> `image` varchar(200) NOT <span NULL</span>, <span 4</span> `create_time` int(11) NOT <span NULL</span>, <span 5</span> PRIMARY <span KEY</span><span (`id`) </span><span 6</span> ) ENGINE=MyISAM <span DEFAULT</span> CHARSET=utf8;
2. Then add the configuration in the conf file (the last configuration is optional, just for the convenience of unified management of URL paths)
<?<span php
</span><span return</span> <span array</span><span (
</span>'URL_MODEL' => 2, <span //</span><span 如果你的环境不支持PATHINFO 请设置为3</span>
'DB_TYPE' => 'mysql',
'DB_HOST' => 'localhost',
'DB_NAME' => 'thinkphp',
'DB_USER' => 'root',
'DB_PWD' => '',
'DB_PORT' => '3306',
'DB_PREFIX' => 'tp_',
'SHOW_PAGE_TRACE' =><span true</span>, <span //</span><span 显示页面调试明细</span>
'TMPL_PARSE_STRING' => <span array</span>( <span //</span><span 地址替换,用_UPLOAD_目录 代替 根目录下的Upload目录</span>
'__UPLOAD__' => __ROOT__.'/Uploads',<span
)</span>,<span
);
</span>?>
3. Add an Image module (you can choose any name)
<?<span php
</span><span class</span> ImageAction <span extends</span><span Action{
</span><span /*</span><span *
* 创建index 入口方法
</span><span */</span>
<span public</span> <span function</span><span index(){
</span><span $image</span>=M('Image'<span );
</span><span $data</span>=<span $image</span>->order('create_time desc')->find(); <span //</span><span 获取最后上传图片</span>
<span $this</span>->assign('data',<span $data</span><span );
</span><span $this</span>-><span display();
}
</span>?>
4. Create the corresponding index view file (index.html)
<!DOCTYPE html <span PUBLIC</span> "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<style type="text/css">
<span #</span><span img{height:22px; border:#000 2px solid}</span>
<span #</span><span button{height:30px; width:100px;}</span>
</style>
</head>
<body>
<div <span class</span>="result" >上传允许文件类型：gif png jpg 图像文件，并生成2张缩略图，其中大图带水印，生成后会删除原图。</div><br>
<notempty name="data"><img src="/static/imghwm/default1.png" data-src="http://www.bkjia.com/uploads/allimg/140310/052001C59-0.jpg?x-oss-process=image/resize,p_40" class="lazy" / alt="ThinkPHP image upload_PHP tutorial" > <img src="/static/imghwm/default1.png" data-src="http://www.bkjia.com/uploads/allimg/140310/052001C59-0.jpg?x-oss-process=image/resize,p_40" class="lazy" / alt="ThinkPHP image upload_PHP tutorial" ></notempty>
<form action="__URL__/upload" method="post" enctype="multipart/form-data">
<input type="file" name="image" id="img"/>
<input type="submit" value="上传" id="button">
</form>
</body>
</html>
5. Select the image and click the upload button, it will jump to the upload method of the Image module. There is no such method on the Image module yet, so we create it
<?<span php
</span><span class</span> ImageAction <span extends</span><span Action{
</span><span /*</span><span *
* 创建index 入口方法
</span><span */</span>
<span public</span> <span function</span><span index(){
</span><span $image</span>=M('Image'<span );
</span><span $data</span>=<span $image</span>->order('create_time desc')->find(); <span //</span><span 获取最后上传图片</span>
<span var_dump</span>(<span $data</span><span );
</span><span $this</span>->assign('data',<span $data</span><span );
</span><span $this</span>-><span display();
} <br />
</span><span //</span><span 如果上传的文件不为空,跳转到_upload方法</span>
<span public</span> <span function</span><span upload(){
</span><span //</span><span 如果不为空</span>
<span if</span>(!<span empty</span>(<span $_FILES</span><span ))
{
</span><span $this</span>-><span _upload();
}
}</span>
6. If the submission is not NULL, jump to the _upload method. This method implements the image upload function
<?<span php
</span><span class</span> ImageAction <span extends</span><span Action{
</span><span /*</span><span *
* 创建index 入口方法
</span><span */</span>
<span public</span> <span function</span><span index(){
</span><span $image</span>=M('Image'<span );
</span><span $data</span>=<span $image</span>->order('create_time desc')->find(); <span //</span><span 获取最后上传图片</span>
<span var_dump</span>(<span $data</span><span );
</span><span $this</span>->assign('data',<span $data</span><span );
</span><span $this</span>-><span display();
}
</span><span //</span><span 如果上传的文件不为空,跳转到_upload方法</span>
<span public</span> <span function</span><span upload(){
</span><span //</span><span 如果不为空</span>
<span if</span>(!<span empty</span>(<span $_FILES</span><span ))
{
</span><span $this</span>-><span _upload();
}
}
</span><span /*</span><span **
* 实现图片上传
</span><span */</span>
<span public</span> <span function</span><span _upload(){
import(</span>'@.ORG.UploadFile'<span );
</span><span //</span><span 导入上传类</span>
<span $upload</span> = <span new</span><span UploadFile();
</span><span //</span><span 设置上传文件大小</span>
<span $upload</span>->maxSize = 3292200<span ;
</span><span //</span><span 设置上传文件类型</span>
<span $upload</span>->allowExts = <span explode</span>(',', 'jpg,gif,png,jpeg'<span );
</span><span //</span><span 设置附件上传目录</span>
<span $upload</span>->savePath = './Uploads/'<span ;
</span><span //</span><span 设置需要生成缩略图，仅对图像文件有效</span>
<span $upload</span>->thumb = <span true</span><span ;
</span><span //</span><span 设置引用图片类库包路径</span>
<span $upload</span>->imageClassPath = '@.ORG.Image'<span ;
</span><span //</span><span 设置需要生成缩略图的文件后缀</span>
<span $upload</span>->thumbPrefix = 'm_,s_'; <span //</span><span 生产2张缩略图
//设置缩略图最大宽度</span>
<span $upload</span>->thumbMaxWidth = '400,100'<span ;
</span><span //</span><span 设置缩略图最大高度</span>
<span $upload</span>->thumbMaxHeight = '400,100'<span ;
</span><span //</span><span 设置上传文件规则</span>
<span $upload</span>->saveRule = 'uniqid'<span ;
</span><span //</span><span 删除原图</span>
<span $upload</span>->thumbRemoveOrigin = <span true</span><span ;
</span><span //</span><span 如果上传不成功</span>
<span if</span> (!<span $upload</span>-><span upload())
{
</span><span //</span><span 捕获上传异常</span>
<span $this</span>->error(<span $upload</span>-><span getErrorMsg());
}
</span><span else</span><span
{
</span><span //</span><span 取得成功上传的文件信息</span>
<span $uploadList</span> = <span $upload</span>-><span getUploadFileInfo();
</span><span //</span><span 导入图片类</span>
import('@.ORG.Image'<span );
</span><span //</span><span 给m_缩略图添加水印, Image::water('原文件路径','水印图片地址')</span>
Image::water(<span $uploadList</span>[0]['savepath'] . 'm_' . <span $uploadList</span>[0]['savename'], APP_PATH.'Tpl/Public/Images/logo.png'<span );
</span><span //</span><span 图片名赋值给 字段image</span>
<span $_POST</span>['image'] = <span $uploadList</span>[0]['savename'<span ];
}
</span><span $model</span> = M('image'<span );
</span><span //</span><span 保存当前数据对象</span>
<span $data</span>['image'] = <span $_POST</span>['image'<span ];
</span><span $data</span>['create_time'] =<span NOW_TIME;
</span><span $list</span> = <span $model</span>->add(<span $data</span><span );
</span><span if</span> (<span $list</span> !== <span false</span><span )
{
</span><span $this</span>->success('上传图片成功！'<span );
}
</span><span else</span><span
{
</span><span $this</span>->error('上传图片失败!'<span );
}
}
}
</span>?>
The final image was uploaded successfully and two thumbnails were generated:
What needs to be explained is:
The image upload class (UploadFile.class.php) and image model class (Image.class.php) that come with ThinkPHP require the full version of the ThinkPHP package.
If not, you need to create a folder (ORG) in Lib, then go to the official website to download the expansion package and put these two files into the ORG folder.
Mine is the second situation
The Continued Use of PHP: Reasons for Its EnduranceApr 19, 2025 am 12:23 AMWhat’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.
PHP and Python: Exploring Their Similarities and DifferencesApr 19, 2025 am 12:21 AMPHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.
PHP and Python: Different Paradigms ExplainedApr 18, 2025 am 12:26 AMPHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.
PHP and Python: A Deep Dive into Their HistoryApr 18, 2025 am 12:25 AMPHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.
Choosing Between PHP and Python: A GuideApr 18, 2025 am 12:24 AMPHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.
PHP and Frameworks: Modernizing the LanguageApr 18, 2025 am 12:14 AMPHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.
PHP's Impact: Web Development and BeyondApr 18, 2025 am 12:10 AMPHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip
How does PHP type hinting work, including scalar types, return types, union types, and nullable types?Apr 17, 2025 am 12:25 AMPHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.
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
Atom editor mac version download
The most popular open source editor
SublimeText3 Linux new version
SublimeText3 Linux latest version
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
Zend Studio 13.0.1
Powerful PHP integrated development environment
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.
