Backend Development
PHP Tutorial
PHP design super easy-to-use file upload processing class 1 (37), _PHP tutorial
PHP design super easy-to-use file upload processing class 1 (37), _PHP tutorial
PHP designed super easy-to-use file upload processing class 1 (37),
<?<span>php
</span><span>class</span><span> FileUpload {
</span><span>private</span> $filepath; <span>//</span><span>指定上传文件保存的路径</span>
<span>private</span> $allowtype=array(<span>'</span><span>gif</span><span>'</span>, <span>'</span><span>jpg</span><span>'</span>, <span>'</span><span>png</span><span>'</span>, <span>'</span><span>jpeg</span><span>'</span>); <span>//</span><span>充许上传文件的类型</span>
<span>private</span> $maxsize=<span>1000000</span>; <span>//</span><span>允上传文件的最大长度 1M</span>
<span>private</span> $israndname=<span>true</span>; <span>//</span><span>是否随机重命名， true false不随机，使用原文件名</span>
<span>private</span> $originName; <span>//</span><span>源文件名称</span>
<span>private</span> $tmpFileName; <span>//</span><span>临时文件名</span>
<span>private</span> $fileType; <span>//</span><span>文件类型</span>
<span>private</span> $fileSize; <span>//</span><span>文件大小</span>
<span>private</span> $newFileName; <span>//</span><span>新文件名</span>
<span>private</span> $errorNum=<span>0</span>; <span>//</span><span>错误号</span>
<span>private</span> $errorMess=<span>""</span>; <span>//</span><span>用来提供错误报告
</span><span>//</span><span>用于对上传文件初使化
</span><span>//</span><span>1. 指定上传路径， 2，充许的类型， 3，限制大小， 4，是否使用随机文件名称
</span><span>//</span><span>让用户可以不用按位置传参数，后面参数给值不用将前几个参数也提供值</span>
function __construct($options=<span>array()){
</span><span>foreach</span>($options <span>as</span> $key=><span>$val){
$key</span>=<span>strtolower($key);
</span><span>//</span><span>查看用户参数中数组的下标是否和成员属性名相同</span>
<span>if</span>(!in_array($key,get_class_vars(get_class($<span>this</span><span>)))){
</span><span>continue</span><span>;
}
$</span><span>this</span>-><span>setOption($key, $val);
}
}
</span><span>private</span><span> function getError(){
$str</span>=<span>"</span><span>上传文件<font color='red'>{$this->originName}</font>时出错：</span><span>"</span><span>;
</span><span>switch</span>($<span>this</span>-><span>errorNum){
</span><span>case</span> <span>4</span>: $str .= <span>"</span><span>没有文件被上传</span><span>"</span>; <span>break</span><span>;
</span><span>case</span> <span>3</span>: $str .= <span>"</span><span>文件只被部分上传</span><span>"</span>; <span>break</span><span>;
</span><span>case</span> <span>2</span>: $str .= <span>"</span><span>上传文件超过了HTML表单中MAX_FILE_SIZE选项指定的值</span><span>"</span>; <span>break</span><span>;
</span><span>case</span> <span>1</span>: $str .= <span>"</span><span>上传文件超过了php.ini 中upload_max_filesize选项的值</span><span>"</span>; <span>break</span><span>;
</span><span>case</span> -<span>1</span>: $str .= <span>"</span><span>末充许的类型</span><span>"</span>; <span>break</span><span>;
</span><span>case</span> -<span>2</span>: $str .= <span>"</span><span>文件过大，上传文件不能超过{$this->maxSize}个字节</span><span>"</span>; <span>break</span><span>;
</span><span>case</span> -<span>3</span>: $str .= <span>"</span><span>上传失败</span><span>"</span>; <span>break</span><span>;
</span><span>case</span> -<span>4</span>: $str .= <span>"</span><span>建立存放上传文件目录失败，请重新指定上传目录</span><span>"</span>; <span>break</span><span>;
</span><span>case</span> -<span>5</span>: $str .= <span>"</span><span>必须指定上传文件的路径</span><span>"</span>; <span>break</span><span>;
</span><span>default</span>: $str .= <span>"</span><span>末知错误</span><span>"</span><span>;
}
</span><span>return</span> $str.<span>'</span><span><br></span><span>'</span><span>;
}
</span><span>//</span><span>用来检查文件上传路径</span>
<span>private</span><span> function checkFilePath(){
</span><span>if</span>(empty($<span>this</span>-><span>filepath)) {
$</span><span>this</span>->setOption(<span>'</span><span>errorNum</span><span>'</span>, -<span>5</span><span>);
</span><span>return</span> <span>false</span><span>;
}
</span><span>if</span>(!file_exists($<span>this</span>->filepath) || !is_writable($<span>this</span>-><span>filepath)){
</span><span>if</span>(!@mkdir($<span>this</span>->filepath, <span>0755</span><span>)){
$</span><span>this</span>->setOption(<span>'</span><span>errorNum</span><span>'</span>, -<span>4</span><span>);
</span><span>return</span> <span>false</span><span>;
}
}
</span><span>return</span> <span>true</span><span>;
}
</span><span>//</span><span>用来检查文件上传的大小</span>
<span>private</span><span> function checkFileSize() {
</span><span>if</span>($<span>this</span>->fileSize > $<span>this</span>-><span>maxsize){
$</span><span>this</span>->setOPtion(<span>'</span><span>errorNum</span><span>'</span>, <span>'</span><span>-2</span><span>'</span><span>);
</span><span>return</span> <span>false</span><span>;
}</span><span>else</span><span>{
</span><span>return</span> <span>true</span><span>;
}
}
</span><span>//</span><span>用于检查文件上传类型</span>
<span>private</span><span> function checkFileType() {
</span><span>if</span>(in_array(strtolower($<span>this</span>->fileType), $<span>this</span>-><span>allowtype)) {
</span><span>return</span> <span>true</span><span>;
}</span><span>else</span><span>{
$</span><span>this</span>->setOption(<span>'</span><span>errorNum</span><span>'</span>, -<span>1</span><span>);
</span><span>return</span> <span>false</span><span>;
}
}
</span><span>//</span><span>设置上传后的文件名称</span>
<span>private</span><span> function setNewFileName(){
</span><span>if</span>($<span>this</span>-><span>israndname){
$</span><span>this</span>->setOption(<span>'</span><span>newFileName</span><span>'</span>, $<span>this</span>-><span>proRandName());
} </span><span>else</span><span> {
$</span><span>this</span>->setOption(<span>'</span><span>newFileName</span><span>'</span>, $<span>this</span>-><span>originName);
}
}
</span><span>//</span><span>设置随机文件名称</span>
<span>private</span><span> function proRandName(){
$fileName</span>=date(<span>"</span><span>YmdHis</span><span>"</span>).rand(<span>100</span>,<span>999</span><span>);
</span><span>return</span> $fileName.<span>'</span><span>.</span><span>'</span>.$<span>this</span>-><span>fileType;
}
</span><span>private</span><span> function setOption($key, $val){
$</span><span>this</span>->$key=<span>$val;
}
</span><span>//</span><span>用来上传一个文件</span>
<span> function uploadFile($fileField){
$</span><span>return</span>=<span>true</span><span>;
</span><span>//</span><span>检查文件上传路径</span>
<span>if</span>(!$<span>this</span>-><span>checkFilePath()){
$</span><span>this</span>->errorMess=$<span>this</span>-><span>getError();
</span><span>return</span> <span>false</span><span>;
}
$name</span>=$_FILES[$fileField][<span>'</span><span>name</span><span>'</span><span>];
$tmp_name</span>=$_FILES[$fileField][<span>'</span><span>tmp_name</span><span>'</span><span>];
$size</span>=$_FILES[$fileField][<span>'</span><span>size</span><span>'</span><span>];
$error</span>=$_FILES[$fileField][<span>'</span><span>error</span><span>'</span><span>];
</span><span>if</span><span>(is_Array($name)){
$errors</span>=<span>array();
</span><span>for</span>($i=<span>0</span>; $i<count($name); $i++<span>){
</span><span>if</span>($<span>this</span>-><span>setFiles($name[$i], $tmp_name[$i], $size[$i], $error[$i])){
</span><span>if</span>(!$<span>this</span>->checkFileSize() || !$<span>this</span>-><span>checkFileType()){
$errors[]</span>=$<span>this</span>-><span>getError();
$</span><span>return</span>=<span>false</span><span>;
}
}</span><span>else</span><span>{
$error[]</span>=$<span>this</span>-><span>getError();
$</span><span>return</span>=<span>false</span><span>;
}
</span><span>if</span>(!$<span>return</span><span>)
$</span><span>this</span>-><span>setFiles();
}
</span><span>if</span>($<span>return</span><span>){
$fileNames</span>=<span>array();
</span><span>for</span>($i=<span>0</span>; $i<count($name); $i++<span>){
</span><span>if</span>($<span>this</span>-><span>setFiles($name[$i], $tmp_name[$i], $size[$i], $error[$i])){
$</span><span>this</span>-><span>setNewFileName();
</span><span>if</span>(!$<span>this</span>-><span>copyFile()){
$errors</span>=$<span>this</span>-><span>getError();
$</span><span>return</span>=<span>false</span><span>;
}</span><span>else</span><span>{
$fileNames[]</span>=$<span>this</span>-><span>newFileName;
}
}
}
$</span><span>this</span>->newFileName=<span>$fileNames;
}
$</span><span>this</span>->errorMess=<span>$errors;
</span><span>return</span> $<span>return</span><span>;
} </span><span>else</span><span> {
</span><span>if</span>($<span>this</span>-><span>setFiles($name, $tmp_name, $size, $error)){
</span><span>if</span>($<span>this</span>->checkFileSize() && $<span>this</span>-><span>checkFileType()){
$</span><span>this</span>-><span>setNewFileName();
</span><span>if</span>($<span>this</span>-><span>copyFile()){
</span><span>return</span> <span>true</span><span>;
}</span><span>else</span><span>{
$</span><span>return</span>=<span>false</span><span>;
}
}</span><span>else</span><span>{
$</span><span>return</span>=<span>false</span><span>;
}
}</span><span>else</span><span>{
$</span><span>return</span>=<span>false</span><span>;
}
</span><span>if</span>(!$<span>return</span><span>)
$</span><span>this</span>->errorMess=$<span>this</span>-><span>getError();
</span><span>return</span> $<span>return</span><span>;
}
}
</span><span>private</span><span> function copyFile(){
</span><span>if</span>(!$<span>this</span>-><span>errorNum){
$filepath</span>=rtrim($<span>this</span>->filepath, <span>'</span><span>/</span><span>'</span>).<span>'</span><span>/</span><span>'</span><span>;
$filepath.</span>=$<span>this</span>-><span>newFileName;
</span><span>if</span>(@move_uploaded_file($<span>this</span>-><span>tmpFileName, $filepath)) {
</span><span>return</span> <span>true</span><span>;
}</span><span>else</span><span>{
$</span><span>this</span>->setOption(<span>'</span><span>errorNum</span><span>'</span>, -<span>3</span><span>);
</span><span>return</span> <span>false</span><span>;
}
}</span><span>else</span><span>{
</span><span>return</span> <span>false</span><span>;
}
}
</span><span>//</span><span>设置和$_FILES有关的内容</span>
<span>private</span> function setFiles($name=<span>""</span>, $tmp_name=<span>''</span>, $size=<span>0</span>, $error=<span>0</span><span>){
$</span><span>this</span>->setOption(<span>'</span><span>errorNum</span><span>'</span><span>, $error);
</span><span>if</span><span>($error){
</span><span>return</span> <span>false</span><span>;
}
$</span><span>this</span>->setOption(<span>'</span><span>originName</span><span>'</span><span>, $name);
$</span><span>this</span>->setOption(<span>'</span><span>tmpFileName</span><span>'</span><span>, $tmp_name);
$arrStr</span>=explode(<span>'</span><span>.</span><span>'</span><span>, $name);
$</span><span>this</span>->setOption(<span>'</span><span>fileType</span><span>'</span>, strtolower($arrStr[count($arrStr)-<span>1</span><span>]));
$</span><span>this</span>->setOption(<span>'</span><span>fileSize</span><span>'</span><span>, $size);
</span><span>return</span> <span>true</span><span>;
}
</span><span>//</span><span>用于获取上传后文件的文件名</span>
<span> function getNewFileName(){
</span><span>return</span> $<span>this</span>-><span>newFileName;
}
</span><span>//</span><span>上传如果失败，则调用这个方法，就可以查看错误报告</span>
<span> function getErrorMsg() {
</span><span>return</span> $<span>this</span>-><span>errorMess;
}
}</span>
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
1666
14
1425
52
1328
25
1273
29
1253
24
PHP and Python: Comparing Two Popular Programming Languages
Apr 14, 2025 am 12:13 AM
PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.
PHP: A Key Language for Web Development
Apr 13, 2025 am 12:08 AM
PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7
PHP in Action: Real-World Examples and Applications
Apr 14, 2025 am 12:19 AM
PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.
PHP vs. Python: Understanding the Differences
Apr 11, 2025 am 12:15 AM
PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.
The Enduring Relevance of PHP: Is It Still Alive?
Apr 14, 2025 am 12:12 AM
PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.
PHP and Python: Code Examples and Comparison
Apr 15, 2025 am 12:07 AM
PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.
PHP vs. Other Languages: A Comparison
Apr 13, 2025 am 12:19 AM
PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.
PHP and Python: Different Paradigms Explained
Apr 18, 2025 am 12:26 AM
PHP 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.
