ホームページ >バックエンド開発 >PHPチュートリアル >PHP設計の超使いやすいファイルアップロード処理クラス1(37)、_PHPチュートリアル
<?<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>