我们今天为大家带来的是关于具体代码如下：
<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>
<li class=""><span> </span></li>
<li class="alt"><span>/** </span></li>
<li class=""><span> * 我的文件上传类 </span></li>
<li class="alt"><span> * </span></li>
<li class=""><span> * 未完成的功能： </span></li>
<li class="alt"><span> * 1.对目标目录是否存在的判断 </span></li>
<li class=""><span> * 2.如果上传时出现重名，自动重命名 </span></li>
<li class="alt"><span> * </span></li>
<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>
</li>
<li class="alt"><span> */ </span></li>
<li class=""><span>class upload </span></li>
<li class="alt"><span>{ </span></li>
<li class=""><span> /** </span></li>
<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>
<li class=""><span> * </span></li>
<li class="alt"><span> * @var array </span></li>
<li class=""><span> */ </span></li>
<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>
</li>
<li class=""><span> </span></li>
<li class="alt"><span> </span></li>
<li class=""><span> /** </span></li>
<li class="alt"><span> * 构造函数：取得上传文件的信息 </span></li>
<li class=""><span> * </span></li>
<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>
<li class=""><span> * </span></li>
<li class="alt">
<span> * @param string $tag form表单中</span><strong><font color="#006699"><span class="tag"><span class="tag-name">input</span><span class="tag">></span></span></font></strong><span>标签中name属性的值，例</span><strong><font color="#006699"><span class="tag"><span class="tag-name">input</span></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>
</li>
<li class=""><span> * </span></li>
<li class="alt"><span> * 例1，上传单个文件： </span></li>
<li class="">
<span> * </span><strong><font color="#006699"><span class="tag"><span class="tag-name">input</span></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>
</li>
<li class="alt"><span> * </span></li>
<li class=""><span> * 例2，上传多个文件： </span></li>
<li class="alt">
<span> * </span><strong><font color="#006699"><span class="tag"><span class="tag-name">input</span></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>
</li>
<li class="">
<span> * </span><strong><font color="#006699"><span class="tag"><span class="tag-name">input</span></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>
</li>
<li class="alt"><span> * </span></li>
<li class=""><span> * 结果（保存在$file变量中）如下： </span></li>
<li class="alt"><span> * </span></li>
<li class=""><span> * array( </span></li>
<li class="alt">
<span> * [0] =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> array( </span>
</li>
<li class="">
<span> * 'name' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'abc.txt' </span>
</li>
<li class="alt">
<span> * 'type' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'text/plain’ </span>
</li>
<li class="">
<span> * 'tmp_name' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> '/tmp/phpgxecCb' </span>
</li>
<li class="alt">
<span> * 'error' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 0 </span>
</li>
<li class="">
<span> * 'size' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 62 </span>
</li>
<li class="alt"><span> * ) </span></li>
<li class="">
<span> * [1] =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> array( </span>
</li>
<li class="alt">
<span> * 'name' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'abc.txt' </span>
</li>
<li class="">
<span> * 'type' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'text/plain’ </span>
</li>
<li class="alt">
<span> * 'tmp_name' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> '/tmp/phpgxecCb' </span>
</li>
<li class="">
<span> * 'error' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 0 </span>
</li>
<li class="alt">
<span> * 'size' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 62 </span>
</li>
<li class=""><span> * ) </span></li>
<li class="alt"><span> * ) </span></li>
<li class=""><span> */ </span></li>
<li class="alt"><span> public function __construct($tag) </span></li>
<li class=""><span> { </span></li>
<li class="alt">
<span> $</span><span class="attribute"><font color="#ff0000">file</font></span><span> = $_FILES[$tag]; </span>
</li>
<li class=""><span> </span></li>
<li class="alt"><span> if (!isset($file) || empty($file)) </span></li>
<li class=""><span> { </span></li>
<li class="alt"><span> return; //没有上传文件 </span></li>
<li class=""><span> } </span></li>
<li class="alt"><span> </span></li>
<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>
</li>
<li class="alt"><span> </span></li>
<li class="">
<span> $</span><span class="attribute"><font color="#ff0000">data</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">array</font></span><span>(); //用来保存上传文件的信息的数组 </span>
</li>
<li class="alt"><span> </span></li>
<li class=""><span> //上传了多个文件 </span></li>
<li class="alt">
<span> if ($num </span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 1) </span>
</li>
<li class=""><span> { </span></li>
<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>
</li>
<li class=""><span> { </span></li>
<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>
</li>
<li class=""><span> $d['name'] = $file['name'][$i]; </span></li>
<li class="alt"><span> $d['type'] = $file['type'][$i]; </span></li>
<li class=""><span> $d['tmp_name'] = $file['tmp_name'][$i]; </span></li>
<li class="alt"><span> $d['error'] = $file['error'][$i]; </span></li>
<li class=""><span> $d['size'] = $file['size'][$i]; </span></li>
<li class="alt"><span> </span></li>
<li class=""><span> if ($d['error'] == 0) </span></li>
<li class="alt"><span> { </span></li>
<li class=""><span> $data[] = $d; </span></li>
<li class="alt"><span> } </span></li>
<li class=""><span> else </span></li>
<li class="alt"><span> { </span></li>
<li class=""><span> @unlink($d['tmp_name']); </span></li>
<li class="alt"><span> } </span></li>
<li class=""><span> } </span></li>
<li class="alt"><span> } </span></li>
<li class=""><span> //只上传了一个文件 </span></li>
<li class="alt"><span> else </span></li>
<li class=""><span> { </span></li>
<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>
</li>
<li class=""><span> $d['name'] = $file['name']; </span></li>
<li class="alt"><span> $d['type'] = $file['type']; </span></li>
<li class=""><span> $d['tmp_name'] = $file['tmp_name']; </span></li>
<li class="alt"><span> $d['error'] = $file['error']; </span></li>
<li class=""><span> $d['size'] = $file['size']; </span></li>
<li class="alt"><span> </span></li>
<li class=""><span> if ($d['error'] == 0) </span></li>
<li class="alt"><span> { </span></li>
<li class=""><span> $data[] = $d; </span></li>
<li class="alt"><span> } </span></li>
<li class=""><span> else </span></li>
<li class="alt"><span> { </span></li>
<li class=""><span> @unlink($d['tmp_name']); </span></li>
<li class="alt"><span> } </span></li>
<li class=""><span> } </span></li>
<li class="alt"><span> </span></li>
<li class=""><span> if (empty($data)) return; </span></li>
<li class="alt"><span> </span></li>
<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>
</li>
<li class="alt"><span> } </span></li>
<li class=""><span> </span></li>
<li class="alt"><span> /** </span></li>
<li class=""><span> * 将上传的文件从临时文件夹移动到目标路径 </span></li>
<li class="alt"><span> * </span></li>
<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>
<li class="alt"><span> * @param string $destpath 上传的目标路径 </span></li>
<li class=""><span> * @param string $filename 上传后的文件名，如果为空，则使用上传时的文件名 </span></li>
<li class="alt"><span> * @return bool </span></li>
<li class=""><span> */ </span></li>
<li class="alt">
<span> public function save($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>
</li>
<li class=""><span> { </span></li>
<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>
</li>
<li class="">
<span> $</span><span class="attribute"><font color="#ff0000">srcFName</font></span><span> = $src['name']; //原始文件名 </span>
</li>
<li class="alt"><span> </span></li>
<li class=""><span> //如果$filename参数为空，则使用上传时的文件名 </span></li>
<li class="alt"><span> if (empty($filename)) </span></li>
<li class=""><span> { </span></li>
<li class="alt">
<span> $</span><span class="attribute"><font color="#ff0000">filename</font></span><span> = $srcFName; </span>
</li>
<li class=""><span> } </span></li>
<li class="alt"><span> </span></li>
<li class=""><span> //$dest是文件最终要复制到的路径和文件名 </span></li>
<li class="alt"><span> if (empty($destpath)) </span></li>
<li class=""><span> { </span></li>
<li class="alt">
<span> $</span><span class="attribute"><font color="#ff0000">dest</font></span><span> = $filename; </span>
</li>
<li class=""><span> } </span></li>
<li class="alt"><span> else </span></li>
<li class=""><span> { </span></li>
<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>
<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>
</li>
<li class="alt">
<span> if ($</span><span class="attribute"><font color="#ff0000">pathend</font></span><span> == '\') </span>
</li>
<li class=""><span> { </span></li>
<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>
</li>
<li class=""><span> } </span></li>
<li class="alt"><span> else if ($pathend != '/') </span></li>
<li class=""><span> { </span></li>
<li class="alt">
<span> $</span><span class="attribute"><font color="#ff0000">dest</font></span><span> = $destpath.'/'.$filename; </span>
</li>
<li class=""><span> } </span></li>
<li class="alt"><span> else </span></li>
<li class=""><span> { </span></li>
<li class="alt">
<span> $</span><span class="attribute"><font color="#ff0000">dest</font></span><span> = $destpath.$filename; </span>
</li>
<li class=""><span> } </span></li>
<li class="alt"><span> } </span></li>
<li class=""><span> </span></li>
<li class="alt"><span> //上传文件成功 </span></li>
<li class=""><span> if (@move_uploaded_file($srcTName, $dest)) </span></li>
<li class="alt"><span> { </span></li>
<li class=""><span> </span></li>
<li class="alt"><span> return true; </span></li>
<li class=""><span> } </span></li>
<li class="alt"><span> else </span></li>
<li class=""><span> { </span></li>
<li class="alt"><span> return false; </span></li>
<li class=""><span> } </span></li>
<li class="alt"><span> } </span></li>
<li class=""><span> </span></li>
<li class="alt"><span> /** </span></li>
<li class=""><span> * 取得上传文件的信息 </span></li>
<li class="alt"><span> * </span></li>
<li class=""><span> * @return array </span></li>
<li class="alt"><span> */ </span></li>
<li class=""><span> public function getFileInfo() </span></li>
<li class="alt"><span> { </span></li>
<li class="">
<span> return $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>file; </span>
</li>
<li class="alt"><span> } </span></li>
<li class=""><span>} </span></li>
<li class="alt"><span> </span></li>
<li class=""><span> </span></li>
<li class="alt">
<span>$</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>
</li>
<li class=""><span> </span></li>
<li class="alt">
<span>$</span><span class="attribute"><font color="#ff0000">fileinfo</font></span><span> = $a -</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> getFileInfo(); </span>
</li>
<li class="">
<span>if ($</span><span class="attribute"><font color="#ff0000">fileinfo</font></span><span> == false) </span>
</li>
<li class="alt"><span>{ </span></li>
<li class=""><span> echo '没有上传文件！'; </span></li>
<li class="alt"><span> exit; </span></li>
<li class=""><span>} </span></li>
<li class="alt"><span> </span></li>
<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); $i++) </span>
</li>
<li class="alt"><span>{ </span></li>
<li class=""><span> echo '正在上传 '.$fileinfo[$i]['name'].' '; </span></li>
<li class="alt">
<span> if ($a -</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> save($fileinfo[$i], 'upload')) echo '完毕'; </span>
</li>
<li class=""><span> else echo '失败'; </span></li>
<li class="alt">
<span> echo '</span><strong><font color="#006699"><span class="tag"><span class="tag-name">br</span><span class="tag">></span></span></font></strong><span>'; </span>
</li>
<li class=""><span>} </span></li>
<li class="alt">
<span></span><span class="tag"><strong><font color="#006699">?></font></strong></span><span> </span>
</li>
</ol>以上代码就是关于PHP上传类upload.php的具体使用方法。
