Codeigniter+flash实现Avatar头像上传的程序
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'];
}
$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;
}
}
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