PHP上传类upload.php的具体使用方法_PHP教程-php教程-PHP中文网

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<OL class=dp-xml><LI class=alt><SPAN><STRONG><FONT color=#006699><SPAN class=tag><?</SPAN><SPAN class=tag-name>php</SPAN></FONT></STRONG><SPAN> </SPAN></SPAN><LI class=""><SPAN> </SPAN><LI class=alt><SPAN>/**  </SPAN><LI class=""><SPAN> * 我的文件上传类  </SPAN><LI class=alt><SPAN> *  </SPAN><LI class=""><SPAN> * 未完成的功能：  </SPAN><LI class=alt><SPAN> * 1.对目标目录是否存在的判断  </SPAN><LI class=""><SPAN> * 2.如果上传时出现重名，自动重命名  </SPAN><LI class=alt><SPAN> *   </SPAN><LI class=""><SPAN> * @author M.Q. </SPAN><SPAN class=tag><STRONG><FONT color=#006699><</FONT></STRONG></SPAN><SPAN>[url]www.mengqi.net[/url]</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> </SPAN></SPAN><LI class=alt><SPAN> */  </SPAN><LI class=""><SPAN>class upload  </SPAN><LI class=alt><SPAN>{  </SPAN><LI class=""><SPAN>    /**  </SPAN><LI class=alt><SPAN>     * PHP上传类upload.php上传文件的信息，此值由构造函数取得，如果上传文件失败或出错或未上传，则此值为false  </SPAN><LI class=""><SPAN>     *  </SPAN><LI class=alt><SPAN>     * @var array  </SPAN><LI class=""><SPAN>     */  </SPAN><LI class=alt><SPAN>    private $</SPAN><SPAN class=attribute><FONT color=#ff0000>file</FONT></SPAN><SPAN> = </SPAN><SPAN class=attribute-value><FONT color=#0000ff>false</FONT></SPAN><SPAN>;   </SPAN></SPAN><LI class=""><SPAN>      </SPAN><LI class=alt><SPAN>     </SPAN><LI class=""><SPAN>    /**  </SPAN><LI class=alt><SPAN>     * 构造函数：取得上传文件的信息  </SPAN><LI class=""><SPAN>     *   </SPAN><LI class=alt><SPAN>     * 如果在上传文件的工程中发生错误，那么出错的文件不会放在结果中返回，结果中的文件都是可用的  </SPAN><LI class=""><SPAN>     *  </SPAN><LI class=alt><SPAN>     * @param string $tag form表单中</SPAN><STRONG><FONT color=#006699><SPAN class=tag><</SPAN><SPAN class=tag-name>input</SPAN><SPAN class=tag>></SPAN></FONT></STRONG><SPAN>标签中name属性的值，例</SPAN><STRONG><FONT color=#006699><SPAN class=tag><</SPAN><SPAN class=tag-name>input</SPAN></FONT></STRONG><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>name</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"p"</FONT></SPAN><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>type</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"file"</FONT></SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> </SPAN></SPAN><LI class=""><SPAN>     *   </SPAN><LI class=alt><SPAN>     * 例1，上传单个文件：  </SPAN><LI class=""><SPAN>     * </SPAN><STRONG><FONT color=#006699><SPAN class=tag><</SPAN><SPAN class=tag-name>input</SPAN></FONT></STRONG><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>name</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"upfile"</FONT></SPAN><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>type</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"file"</FONT></SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> </SPAN></SPAN><LI class=alt><SPAN>     *   </SPAN><LI class=""><SPAN>     * 例2，上传多个文件：  </SPAN><LI class=alt><SPAN>     * </SPAN><STRONG><FONT color=#006699><SPAN class=tag><</SPAN><SPAN class=tag-name>input</SPAN></FONT></STRONG><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>name</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"upfile[]"</FONT></SPAN><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>type</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"file"</FONT></SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> </SPAN></SPAN><LI class=""><SPAN>     * </SPAN><STRONG><FONT color=#006699><SPAN class=tag><</SPAN><SPAN class=tag-name>input</SPAN></FONT></STRONG><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>name</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"upfile[]"</FONT></SPAN><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>type</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"file"</FONT></SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> </SPAN></SPAN><LI class=alt><SPAN>     *   </SPAN><LI class=""><SPAN>     * 结果（保存在$file变量中）如下：  </SPAN><LI class=alt><SPAN>     *   </SPAN><LI class=""><SPAN>     * array(  </SPAN><LI class=alt><SPAN>     * [0] =</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> array(  </SPAN></SPAN><LI class=""><SPAN>     *      'name'      =</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> 'abc.txt'  </SPAN></SPAN><LI class=alt><SPAN>     *      'type'      =</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> 'text/plain’  </SPAN></SPAN><LI class=""><SPAN>     *      'tmp_name'  =</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> '/tmp/phpgxecCb'  </SPAN></SPAN><LI class=alt><SPAN>     *      'error'     =</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> 0  </SPAN></SPAN><LI class=""><SPAN>     *      'size'      =</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> 62  </SPAN></SPAN><LI class=alt><SPAN>     *      )  </SPAN><LI class=""><SPAN>     * [1] =</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> array(  </SPAN></SPAN><LI class=alt><SPAN>     *      'name'      =</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> 'abc.txt'  </SPAN></SPAN><LI class=""><SPAN>     *      'type'      =</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> 'text/plain’  </SPAN></SPAN><LI class=alt><SPAN>     *      'tmp_name'  =</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> '/tmp/phpgxecCb'  </SPAN></SPAN><LI class=""><SPAN>     *      'error'     =</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> 0  </SPAN></SPAN><LI class=alt><SPAN>     *      'size'      =</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> 62  </SPAN></SPAN><LI class=""><SPAN>     *      )  </SPAN><LI class=alt><SPAN>     * )  </SPAN><LI class=""><SPAN>     */  </SPAN><LI class=alt><SPAN>    public function __construct($tag)  </SPAN><LI class=""><SPAN>    {  </SPAN><LI class=alt><SPAN>        $</SPAN><SPAN class=attribute><FONT color=#ff0000>file</FONT></SPAN><SPAN> = $_FILES[$tag];  </SPAN></SPAN><LI class=""><SPAN>                 </SPAN><LI class=alt><SPAN>        if (!isset($file) || empty($file))   </SPAN><LI class=""><SPAN>        {  </SPAN><LI class=alt><SPAN>            return; //没有上传文件  </SPAN><LI class=""><SPAN>        }  </SPAN><LI class=alt><SPAN>          </SPAN><LI class=""><SPAN>        $</SPAN><SPAN class=attribute><FONT color=#ff0000>num</FONT></SPAN><SPAN> = </SPAN><SPAN class=attribute-value><FONT color=#0000ff>count</FONT></SPAN><SPAN>($file['name']); //PHP上传类upload.php上传文件的个数  </SPAN></SPAN><LI class=alt><SPAN>          </SPAN><LI class=""><SPAN>        $</SPAN><SPAN class=attribute><FONT color=#ff0000>data</FONT></SPAN><SPAN> = </SPAN><SPAN class=attribute-value><FONT color=#0000ff>array</FONT></SPAN><SPAN>(); //用来保存上传文件的信息的数组  </SPAN></SPAN><LI class=alt><SPAN> </SPAN><LI class=""><SPAN>        //上传了多个文件  </SPAN><LI class=alt><SPAN>        if ($num </SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> 1)  </SPAN></SPAN><LI class=""><SPAN>        {  </SPAN><LI class=alt><SPAN>            for($</SPAN><SPAN class=attribute><FONT color=#ff0000>i</FONT></SPAN><SPAN> = </SPAN><SPAN class=attribute-value><FONT color=#0000ff>0</FONT></SPAN><SPAN>; $i </SPAN><SPAN class=tag><STRONG><FONT color=#006699><</FONT></STRONG></SPAN><SPAN> $num; $i++)  </SPAN></SPAN><LI class=""><SPAN>            {  </SPAN><LI class=alt><SPAN>                $</SPAN><SPAN class=attribute><FONT color=#ff0000>d</FONT></SPAN><SPAN> = </SPAN><SPAN class=attribute-value><FONT color=#0000ff>array</FONT></SPAN><SPAN>();  </SPAN></SPAN><LI class=""><SPAN>                $d['name']       = $file['name'][$i];  </SPAN><LI class=alt><SPAN>                $d['type']       = $file['type'][$i];  </SPAN><LI class=""><SPAN>                $d['tmp_name']   = $file['tmp_name'][$i];  </SPAN><LI class=alt><SPAN>                $d['error']      = $file['error'][$i];  </SPAN><LI class=""><SPAN>                $d['size']       = $file['size'][$i];  </SPAN><LI class=alt><SPAN>                  </SPAN><LI class=""><SPAN>                if ($d['error'] == 0)  </SPAN><LI class=alt><SPAN>                {  </SPAN><LI class=""><SPAN>                    $data[] = $d;  </SPAN><LI class=alt><SPAN>                }  </SPAN><LI class=""><SPAN>                else   </SPAN><LI class=alt><SPAN>                {  </SPAN><LI class=""><SPAN>                    @unlink($d['tmp_name']);  </SPAN><LI class=alt><SPAN>                }  </SPAN><LI class=""><SPAN>            }  </SPAN><LI class=alt><SPAN>        }  </SPAN><LI class=""><SPAN>        //只上传了一个文件  </SPAN><LI class=alt><SPAN>        else   </SPAN><LI class=""><SPAN>        {  </SPAN><LI class=alt><SPAN>            $</SPAN><SPAN class=attribute><FONT color=#ff0000>d</FONT></SPAN><SPAN> = </SPAN><SPAN class=attribute-value><FONT color=#0000ff>array</FONT></SPAN><SPAN>();  </SPAN></SPAN><LI class=""><SPAN>            $d['name']       = $file['name'];  </SPAN><LI class=alt><SPAN>            $d['type']       = $file['type'];  </SPAN><LI class=""><SPAN>            $d['tmp_name']   = $file['tmp_name'];  </SPAN><LI class=alt><SPAN>            $d['error']      = $file['error'];  </SPAN><LI class=""><SPAN>            $d['size']       = $file['size'];  </SPAN><LI class=alt><SPAN>              </SPAN><LI class=""><SPAN>            if ($d['error'] == 0)  </SPAN><LI class=alt><SPAN>            {  </SPAN><LI class=""><SPAN>                $data[] = $d;  </SPAN><LI class=alt><SPAN>            }  </SPAN><LI class=""><SPAN>            else   </SPAN><LI class=alt><SPAN>            {  </SPAN><LI class=""><SPAN>                @unlink($d['tmp_name']);  </SPAN><LI class=alt><SPAN>            }  </SPAN><LI class=""><SPAN>        }  </SPAN><LI class=alt><SPAN>          </SPAN><LI class=""><SPAN>        if (empty($data)) return;  </SPAN><LI class=alt><SPAN>          </SPAN><LI class=""><SPAN>        $this -</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>file</FONT></SPAN><SPAN> = $data; //保存上传文件的信息  </SPAN></SPAN><LI class=alt><SPAN>    }  </SPAN><LI class=""><SPAN>      </SPAN><LI class=alt><SPAN>    /**  </SPAN><LI class=""><SPAN>     * 将上传的文件从临时文件夹移动到目标路径  </SPAN><LI class=alt><SPAN>     *  </SPAN><LI class=""><SPAN>     * @param array $src 文件信息数组，是$file数组的其中一个元素（仍然是数组）  </SPAN><LI class=alt><SPAN>     * @param string $destpath 上传的目标路径  </SPAN><LI class=""><SPAN>     * @param string $filename 上传后的文件名，如果为空，则使用上传时的文件名  </SPAN><LI class=alt><SPAN>     * @return bool  </SPAN><LI class=""><SPAN>     */  </SPAN><LI class=alt><SPAN>    public function save($src, $destpath, $</SPAN><SPAN class=attribute><FONT color=#ff0000>filename</FONT></SPAN><SPAN> = </SPAN><SPAN class=attribute-value><FONT color=#0000ff>null</FONT></SPAN><SPAN>)  </SPAN></SPAN><LI class=""><SPAN>    {  </SPAN><LI class=alt><SPAN>        $</SPAN><SPAN class=attribute><FONT color=#ff0000>srcTName</FONT></SPAN><SPAN> = $src['tmp_name']; //原始上传文件的临时文件名  </SPAN></SPAN><LI class=""><SPAN>        $</SPAN><SPAN class=attribute><FONT color=#ff0000>srcFName</FONT></SPAN><SPAN> = $src['name'];     //原始文件名  </SPAN></SPAN><LI class=alt><SPAN>          </SPAN><LI class=""><SPAN>        //如果$filename参数为空，则使用上传时的文件名  </SPAN><LI class=alt><SPAN>        if (empty($filename))  </SPAN><LI class=""><SPAN>        {  </SPAN><LI class=alt><SPAN>            $</SPAN><SPAN class=attribute><FONT color=#ff0000>filename</FONT></SPAN><SPAN> = $srcFName;  </SPAN></SPAN><LI class=""><SPAN>        }  </SPAN><LI class=alt><SPAN>          </SPAN><LI class=""><SPAN>        //$dest是文件最终要复制到的路径和文件名  </SPAN><LI class=alt><SPAN>        if (empty($destpath))  </SPAN><LI class=""><SPAN>        {  </SPAN><LI class=alt><SPAN>            $</SPAN><SPAN class=attribute><FONT color=#ff0000>dest</FONT></SPAN><SPAN> = $filename;  </SPAN></SPAN><LI class=""><SPAN>        }  </SPAN><LI class=alt><SPAN>        else   </SPAN><LI class=""><SPAN>        {  </SPAN><LI class=alt><SPAN>            //修正路径中的斜杠，将末尾的修改为/，如果末尾不是也不是/，则给末尾添加一个/  </SPAN><LI class=""><SPAN>            $</SPAN><SPAN class=attribute><FONT color=#ff0000>pathend</FONT></SPAN><SPAN> = $destpath[strlen($destpath) - 1]; //上传的目标路径的最后一个字符  </SPAN></SPAN><LI class=alt><SPAN>            if ($</SPAN><SPAN class=attribute><FONT color=#ff0000>pathend</FONT></SPAN><SPAN> == '\')  </SPAN></SPAN><LI class=""><SPAN>            {  </SPAN><LI class=alt><SPAN>                $</SPAN><SPAN class=attribute><FONT color=#ff0000>dest</FONT></SPAN><SPAN> = </SPAN><SPAN class=attribute-value><FONT color=#0000ff>substr_replace</FONT></SPAN><SPAN>($destpath, '/', strlen($destpath)-1).$filename;  </SPAN></SPAN><LI class=""><SPAN>            }  </SPAN><LI class=alt><SPAN>            else if ($pathend != '/')  </SPAN><LI class=""><SPAN>            {  </SPAN><LI class=alt><SPAN>                $</SPAN><SPAN class=attribute><FONT color=#ff0000>dest</FONT></SPAN><SPAN> = $destpath.'/'.$filename;  </SPAN></SPAN><LI class=""><SPAN>            }  </SPAN><LI class=alt><SPAN>            else   </SPAN><LI class=""><SPAN>            {  </SPAN><LI class=alt><SPAN>                $</SPAN><SPAN class=attribute><FONT color=#ff0000>dest</FONT></SPAN><SPAN> = $destpath.$filename;  </SPAN></SPAN><LI class=""><SPAN>            }  </SPAN><LI class=alt><SPAN>        }  </SPAN><LI class=""><SPAN>            </SPAN><LI class=alt><SPAN>        //上传文件成功  </SPAN><LI class=""><SPAN>        if (@move_uploaded_file($srcTName, $dest))  </SPAN><LI class=alt><SPAN>        {  </SPAN><LI class=""><SPAN>              </SPAN><LI class=alt><SPAN>            return true;   </SPAN><LI class=""><SPAN>        }  </SPAN><LI class=alt><SPAN>        else   </SPAN><LI class=""><SPAN>        {  </SPAN><LI class=alt><SPAN>            return false;  </SPAN><LI class=""><SPAN>        }  </SPAN><LI class=alt><SPAN>    }  </SPAN><LI class=""><SPAN>      </SPAN><LI class=alt><SPAN>    /**  </SPAN><LI class=""><SPAN>     * 取得上传文件的信息  </SPAN><LI class=alt><SPAN>     *  </SPAN><LI class=""><SPAN>     * @return array  </SPAN><LI class=alt><SPAN>     */  </SPAN><LI class=""><SPAN>    public function getFileInfo()  </SPAN><LI class=alt><SPAN>    {  </SPAN><LI class=""><SPAN>        return $this-</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN>file;  </SPAN></SPAN><LI class=alt><SPAN>    }  </SPAN><LI class=""><SPAN>}  </SPAN><LI class=alt><SPAN> </SPAN><LI class=""><SPAN> </SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>a</FONT></SPAN><SPAN> = </SPAN><SPAN class=attribute-value><FONT color=#0000ff>new</FONT></SPAN><SPAN> upload('upfile');  </SPAN></SPAN><LI class=""><SPAN> </SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>fileinfo</FONT></SPAN><SPAN> = $a -</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> getFileInfo();  </SPAN></SPAN><LI class=""><SPAN>if ($</SPAN><SPAN class=attribute><FONT color=#ff0000>fileinfo</FONT></SPAN><SPAN> == false)  </SPAN></SPAN><LI class=alt><SPAN>{  </SPAN><LI class=""><SPAN>    echo '没有上传文件！';  </SPAN><LI class=alt><SPAN>    exit;  </SPAN><LI class=""><SPAN>}  </SPAN><LI class=alt><SPAN> </SPAN><LI class=""><SPAN>for($</SPAN><SPAN class=attribute><FONT color=#ff0000>i</FONT></SPAN><SPAN> = </SPAN><SPAN class=attribute-value><FONT color=#0000ff>0</FONT></SPAN><SPAN>; $i </SPAN><SPAN class=tag><STRONG><FONT color=#006699><</FONT></STRONG></SPAN><SPAN> </SPAN><SPAN class=tag-name><STRONG><FONT color=#006699>count</FONT></STRONG></SPAN><SPAN>($fileinfo); $i++)  </SPAN></SPAN><LI class=alt><SPAN>{  </SPAN><LI class=""><SPAN>    echo '正在上传 '.$fileinfo[$i]['name'].' ';  </SPAN><LI class=alt><SPAN>    if ($a -</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN> save($fileinfo[$i], 'upload')) echo '完毕';  </SPAN></SPAN><LI class=""><SPAN>    else echo '失败';  </SPAN><LI class=alt><SPAN>    echo '</SPAN><STRONG><FONT color=#006699><SPAN class=tag><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></SPAN></FONT></STRONG><SPAN>';  </SPAN></SPAN><LI class=""><SPAN>}  </SPAN><LI class=alt><SPAN></SPAN><SPAN class=tag><STRONG><FONT color=#006699>?></FONT></STRONG></SPAN><SPAN> </SPAN></SPAN></LI></OL>
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以上代码就是关于PHP上传类upload.php的具体使用方法。