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PHP设计超级好用的文件上传处理类一 （37），_PHP教程
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PHP设计超级好用的文件上传处理类一 （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>Copier après la connexion
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