Codeigniter+flash实现Avatar头像上传的程序

发布:smiling　来源: PHP粉丝网　添加日期：2014-08-26 10:25:18　浏览: 评论：0　

头像上传功能我们用到最多的就简单的flash+php来实现上传前剪切图片然后达到我们想要的效果了,下面我来给各位整理几个基于ci整合Avatar头像上传功能,希望例子能帮助到各位,然后在控制器中调用即可:实现方法,代码如下:

//重新设置session(防止新传头像无法显示)

$this->session->set_userdata('user_info',$user_info);

//项目决对路径

$base_path = rtrim(str_replace('＼＼','/', FCPATH),'/');

require APPPATH.'libraries/avatar.class.php';

$au = new avatar($base_path.'/uploads/user/'.$user_info['mid'].'/',$base_path.'/uploads/user/temp/','/uploads/user/','/faceapi/');

if(!$user_info['face']){

    $uid = 'uface_'.$user_info['mid'];

}else{

    $uid = $user_info['face'];

}//开源代码phpfensi.com

$this->data['urlAvatarBig']   = $user_info['face'] ? $au->getAvatarUrl($uid,'big') : (($this->user_info['sex']==0 )? static_url().'/uploads/user/dfgirl.png' : static_url().'/uploads/user/dfboy.png' );

$this->data['urlCameraFlash'] = $au->renderHtml($uid);

$this->data['uid'] = $uid;//头像标示

$this->load->view('center/member/edit_face',$this->data);

视图中的调用方法,代码如下:

<div style="float:left;width:455px;height:253px;overflow:hidden;margin-left:10px;"><?php echo $urlCameraFlash ?></div>

<script type="text/javascript">

function updateavatar(){

$('#userface').attr('src','/uploads/user/<?php echo $user_info['mid'].'/'.$uid?>_big.jpg?aid='+Math.random());

}

</script>

下面再来补充一下avatar.class.php了,代码如下:

<?php

class avatar{

public $savePath;

public $tempPath;

public $viewPath;

public $urlPath;

public $mid;

public function __construct($savePath,$tempPath,$viewPath,$urlPath,$mid){

  $this->savePath=$savePath;

  $this->tempPath=$tempPath;

  $this->viewPath='http://'.$_SERVER['HTTP_HOST'].$viewPath;

  $this->urlPath='http://'.$_SERVER['HTTP_HOST'].$urlPath;

  $this->mid = $mid;

}

// 第一步：上传原始图片文件

private function uploadAvatar($uid){

  // 检查上传文件的有效性

  if(emptyempty($_FILES['Filedata'])){

   return -3; // No photograph be upload!

  }

  // 本地临时存储位置

  $tmpPath = $this->tempPath."{$uid}.jpg";

  // 如果临时存储的文件夹不存在，先创建它

  $dir=dirname($tmpPath);

  if(!file_exists($dir)){

   @mkdir($dir,0777, true );

  }

  // 如果同名的临时文件已经存在，先删除它

  if(file_exists($tmpPath)){

   @unlink($tmpPath);

  }

  // 把上传的图片文件保存到预定位置

  if ( @copy($_FILES['Filedata']['tmp_name'], $tmpPath) || @move_uploaded_file($_FILES['Filedata']['tmp_name'], $tmpPath)) {

   @unlink($_FILES['Filedata']['tmp_name']);

   list($width, $height, $type, $attr) = getimagesize($tmpPath);

   if ( $width < 10 || $height < 10 || $width > 3000 || $height > 3000 || $type == 4 ) {

    @unlink($tmpPath);

    return -2; // Invalid photograph!

   }

  } else {

   @unlink($_FILES['Filedata']['tmp_name']);

   return -4; // Can not write to the data/tmp folder!

  }

  // 用于访问临时图片文件的 url

  $tmpUrl =$this->viewPath."temp/{$uid}.jpg";

  return $tmpUrl;

}

private function flashdata_decode($s) {

  $r = '';

  $l = strlen($s);

  for($i=0; $i<$l; $i=$i+2) {

   $k1 = ord($s[$i]) - 48;

   $k1 -= $k1 > 9 ? 7 : 0;

   $k2 = ord($s[$i+1]) - 48;

   $k2 -= $k2 > 9 ? 7 : 0;

   $r .= chr($k1 << 4 | $k2);

  }

  return $r;

}

// 第二步：上传分割后的三个图片数据流

private function rectAvatar( $uid ){

  // 从 $_POST 中提取出三个图片数据流

  $bigavatar    = $this->flashdata_decode( $_POST['avatar1'] );

  $middleavatar = $this->flashdata_decode( $_POST['avatar2'] );

  if ( !$bigavatar || !$middleavatar) {

   return '<root><message type="error" value="-2" /></root>';

  }



  //不存在目录，则创建

  if(!file_exists($this->savePath)){

   @mkdir($this->savePath,0777, true );

  }

  // 保存为图片文件

  $bigavatarfile    = $this->savePath."{$uid}_big.jpg";

  $middleavatarfile = $this->savePath."{$uid}_middle.jpg";

  $success = 1;

  $fp = @fopen($bigavatarfile, 'wb');

  @fwrite($fp, $bigavatar);

  @fclose($fp);

  $fp = @fopen($middleavatarfile, 'wb');

  @fwrite($fp, $middleavatar);

  @fclose($fp);

  // 验证图片文件的正确性

  $biginfo    = @getimagesize($bigavatarfile);

  $middleinfo = @getimagesize($middleavatarfile);

  if ( !$biginfo || !$middleinfo || $biginfo[2] == 4 || $middleinfo[2] == 4 ) {

   file_exists($bigavatarfile) && unlink($bigavatarfile);

   file_exists($middleavatarfile) && unlink($middleavatarfile);

   $success = 0;

  }

  // 删除临时存储的图片

  $tmpPath = $this->tempPath."{$uid}.jpg";

  @unlink($tmpPath);

  //临时保存头像

  $con=mysql_connect('localhost','root','root');

  mysql_select_db('zenyue');

  mysql_query("set names utf8");

  $sql="update zen_user set `face`='".$uid."' where mid='".$this->mid."'";

  mysql_query($sql);

  return '<?xml version="1.0" ?><root><face success="' . $success . '"/></root>';

}

// 从客户端访问头像图片的 url

public function getAvatarUrl( $uid, $size='middle' ){

  $ci = &get_instance();

  $user_info = $ci->session->userdata('user_info');

  return $this->viewPath."{$user_info['mid']}/{$uid}_{$size}.jpg";

}

// 处理 HTTP Request

// 返回值：如果是可识别的 request，处理后返回 true；否则返回 false。

public function processRequest(){

  // 从 input 参数里拆解出自定义参数

  $arr = array();

  parse_str( $_GET['input'], $arr );

  $uid = $arr['uid'];

  if ( $_GET['a'] == 'uploadavatar') {

   // 第一步：上传原始图片文件

   echo $this->uploadAvatar( $uid );

   return true;

  } else if ( $_GET['a'] == 'rectavatar') {

   // 第二步：上传分割后的三个图片数据流

   echo $this->rectAvatar( $uid );

   return true;

  }

  return false;

}

// 编辑页面中包含 camera.swf 的 HTML 代码

public function renderHtml( $uid ){

  // 把需要回传的自定义参数都组装在 input 里

  $ci = &get_instance();

  $user_info = $ci->session->userdata('user_info');

  $input = urlencode("uid={$uid}&FSESSIONID=".session_id().'&mid='.$user_info['mid']);

  $baseUrl = '/public/zen/js/avatar/';

  $uc_api = urlencode( $this->urlPath.'avatar.php');

  $urlCameraFlash = "{$baseUrl}camera.swf?m=user&inajax=1&appid=1&ucapi={$uc_api}&input={$input}&uploadSize=2048";

  $urlCameraFlash = '<script src="'.$baseUrl.'common.js?B6k" type="text/javascript"></script><script type="text/javascript">document.write(AC_FL_RunContent("width","455","height","253","scale","exactfit","src","'.$urlCameraFlash.'","id","mycamera","name","mycamera","quality","high","bgcolor","#ffffff","wmode","transparent","menu","false","swLiveConnect","true","allowScriptAccess","always"));</script>';

  return $urlCameraFlash;

}

}

?>