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PHP一步步实现文件上传及上传文件类,文件上传

<?php
/* 图片上传类  只限JPG格式图片 */
class uploadFile
{
var $inputName; //input名称
var $fileName; //文件命名
var $fileProperty; //文件属性
var $fileSize=2097152; //文件大小限制,2M
var $filePath="upload/"; //文件存款和储蓄路线
function uploadFile($inputName){
$this->inputName=$inputName;
$this->getName(); //取得新的名称
$this->fileSave();
}
//随机名称
private function getName(){
$this->fileName=date("YmdHms").rand(0,9).$this->getProperty();
}
//文件属性,重临后辍名
private function getProperty(){
if($_FILES[$this->inputName]["type"]=="image/pjpeg"||$_FILES[$this->inputName]["type"]=="image/jpeg"){
return ".jpg";
}else{
exit("文件格式不对");
}
}
//文件存款和储蓄
private function fileSave(){
if($_FILES[$this->inputName]["size"]>$this->fileSize){
exit("文件太大,最大面积为".$this->fileSize."字节");
}
if(!file_exists($this->filePath)){
mkdir($this->filePath); //假如文件存款和储蓄目录空中楼阁,则树立;
}
move_uploaded_file($_FILES[$this->inputName]["tmp_name"],
$this->filePath.$this->fileName);
}
}
if($_GET['action']=="fileSave"){
$f=new uploadFile("file");
echo '<input name="text田野同志" type="text" size="30" value="'.$f->filePath.$f->fileName.'" /> 上传成功! <a href="'.$f->filePath.$f->fileName.'">浏览</a>';
}else{
echo '<form action="?action=fileSave" method="post" enctype="multipart/form-data" name="form1" id="form1">
<input type="file" name="file" size="30" />
<input type="submit" name="Submit" value="提交" />
</form>';
}
?>

php 文件上传代码,限制jpg文件
<?php
    /* 图片上传类 www.lost63.com原创代码 只限JPG格式图片 */
    class uploadFile
    {
        var $inputName; //input名称
        var $fileName; //文件命名
        var $fileProperty; //文件属性
        var $fileSize=2097152; //文件大小限制,2M
        var $filePath="upload/"; //文件存款和储蓄路线
        function uploadFile($inputName){
            $this->inputName=$inputName;
威澳门尼斯人1294cc,            $this->getName(); //获得新的名号
            $this->fileSave();
        }
        //随机名称
        private function getName(){
            $this->fileName=date("YmdHms").rand(0,9).$this->getProperty();
        }
        //文件属性,重返后辍名
        private function getProperty(){
            if($_FILES[$this->inputName]["type"]=="image/pjpeg"||$_FILES[$this->inputName]["type"]=="image/jpeg"){
                return ".jpg";
            }else{
                exit("文件格式不对");
            }
        }
        //文件存储
        private function fileSave(){
            if($_FILES[$this->inputName]["size"]>$this->fileSize){
                exit("文件太大,最大面积为".$this->fileSize."字节");
            }
            if(!file_exists($this->filePath)){
                mkdir($this->filePath); //假如文件存款和储蓄目录空中楼阁,则树立;
            }
            move_uploaded_file($_FILES[$this->inputName]["tmp_name"],
                $this->filePath.$this->fileName);
        }
    }
    if($_GET['action']=="fileSave"){
        $f=new uploadFile("file");
        echo '<input name="text田野先生" type="text" size="30" value="'.$f->filePath.$f->fileName.'" /> 上传成功! <a href="'.$f->filePath.$f->fileName.'">浏览</a>';
    }else{
        echo '<form action="?action=fileSave" method="post" enctype="multipart/form-data" name="form1" id="form1">
              <input type="file" name="file" size="30" />
              <input type="submit" name="Submit" value="提交" />
            </form>';
    }
?>

咱们还足以经过上面包车型大巴函数来促成移动文件:

复制代码 代码如下:

顾客端限制上传

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name:上传的文书的称谓
type: 上传的公文的MIME类型
tmp_name:文件上传到服务器的一时路线
site:上传的文件的分寸
error:上传的文本的错误码,0意味着上传成功UPLOAD_ERR_OK

一,相比轻便的兑现文件上传

活动文件

笔者们能够因而遮蔽域来落到实处限制上传的文件大小,同期能够通过accept来限制上传的文件的品种,如下所示:

表单发送格局为post
指定enctype=multipart/form-data
顾客端的代码:

// 参数一:待移动的公文
// 参数二:移动到的对象路线
bool copy ( string $source , string $dest [, resource $context ] )
 
处理上传

<?php
 
ini_set('display_errors', 'On');
error_reporting(E_ALL);
header('Content-type:text/html;Charset=utf-8');
 
/**
* Class for Uploading a single image 
*/
class Upload {
    protected $fileName; /* eg, $_FILES['file'], the name is file. */
    protected $allowExt; /* Allow extension for uploading a file */
    protected $allowMIMEType;      /* Allow uploading file mine types */
    protected $fileMaxSize; /* Limit a uploading file size */
    protected $uploadPath;  /* The destination path */
    protected $isImageFlag;     /* Note that file is an image or not. */
    protected $errorMessage;   
    protected $fileExt;
    protected $fileInfos;
    protected $fileUniqueName;
    protected $fileDestPath;
 
    public function __construct($fileName = 'file', $uploadPath = './Uploads', $isImageFlag = true, $fileMaxSize = 1048576, $allowExt = array('png', 'jpg', 'jpeg', 'gif'), $allowMIMEType = array('image/png', 'image/jpeg', 'image/gif')) {
        $this->fileName = $fileName;
        $this->allowExt = $allowExt;
        $this->allowMIMEType = $allowMIMEType;
        $this->uploadPath = $uploadPath;
        $this->isImageFlag = $isImageFlag;
        $this->fileMaxSize = $fileMaxSize;
        // print_r($_FILES);
        $this->fileInfos = $_FILES[$fileName];
    }
 
    public function uploadFile() {
        if ($this->isValidExt()
            && $this->isValidMIMEType()
            && $this->isValidFileSize()
            && $this->isRealImage()
            && $this->isHTTPPOST()
            && !$this->hasError()) {
            $this->isUploadPathExist();
            $this->fileUniqueName = $this->getUniqueName();
            $this->fileDestPath = $this->uploadPath . '/' . $this->fileUniqueName . '.' . $this->fileExt;
// echo iconv('gb2312', 'UTF-8', $this->fileDestPath);
            if (@move_uploaded_file($this->fileInfos['tmp_name'], $this->fileDestPath)) {
                return $this->fileDestPath;
            } else {
                $this->errorMessage = '文件上传退步';
            }
        } else {
            $this->errorMessage = '文件上传失利';
        }
 
        exit('<span style="color:red">'.$this->errorMessage.'</span>');
    }
 
    protected function hasError() {
        $ret = true;
 
        if (!is_null($this->fileInfos)) {
            switch ($this->fileInfos['error']) {
                case UPLOAD_ERR_INI_SIZE:
                   $this->errorMessage = '文件大小超越PHP.ini文件中upload_max_filesize';
                   break;
                case UPLOAD_ERR_FORM_SIZE:
                    $this->errorMessage = '文件大小超过了表单中MAX_FILE_SIZE设置的值';
                    break;
                case UPLOAD_ERR_NO_TMP_DIR:
                    $this->errorMessage = '找不到一时文件目录';
                    break;
                case UPLOAD_ERR_NO_FILE:
                    $this->errorMessage = '未有选用任何文件上传';
                    break;
                case UPLOAD_ERR_CANT_WRITE:
                    $this->errorMessage = '文件不可写';
                    break;
                case UPLOAD_ERR_PARTIAL:
                    $this->errorMessage = '独有一对文件被上传';
                    break;
                case UPLOAD_ERR_EXTENSION:
                    $this->errorMessage = '文件上传进程中被PHP扩张程序中断';
                    break;
                default:
                    $this->errorMessage = '';
                    $ret = false;
            }
        } else {
            $this->errorMessage = '文件上盛传错';
        }
 
        return $ret;
    }
 
    protected function isValidFileSize() {
        if ($this->fileInfos['size'] > $this->fileMaxSize) {
            $this->errorMessage = '文件太大';
            return false;
        }
 
        return true;
    }
 
    protected function isValidExt() {
        $ext = pathinfo($this->fileInfos['name'], PATHINFO_EXTENSION);
        if (!in_array($ext, $this->allowExt)) {
            $this->errorMessage = '不帮忙的文件类型';
            return false;
        }
 
        $this->fileExt = $ext;
        return true;;
    }
 
    protected function isValidMIMEType() {
        $type = $this->fileInfos['type'];
 
        if (!in_array($type, $this->allowMIMEType)) {
            $this->errorMessage = '不扶助的文件MIME类型';
            return false;
        }
 
        return true;
    }
 
    protected function isHTTPPOST() {
        if (!is_uploaded_file($this->fileInfos['tmp_name'])) {
            $this->errorMessage = '文件不是由此HTTP POST传上来的';
 
            return false;
        }
 
        return true;
    }
 
    protected function isRealImage() {
        if ($this->isImageFlag && !getimagesize($this->fileInfos['tmp_name'])) {
            $this->errorMessage = '文件不是图表';
            return false;
        }
 
        return true;
    }
 
    protected function isUploadPathExist() {
        if (!file_exists($this->uploadPath)) {
            mkdir($this->uploadPath, 0777, true);
        }
    }
 
    protected function getUniqueName() {
        return md5(microtime(true), true);
    }
}
 
$upload = new Upload('myfile');
if ($upload->uploadFile()) {
    echo "文件上传成功";
}

假设大家要匡助上传20M的公文,那么我们能够安装以下选项:

本文由澳门威利斯人发布于威利斯人娱乐,转载请注明出处:PHP一步步实现文件上传及上传文件类,文件上传

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