本文实例讲述了利用yii框架来实现图片上传功能并在上传成功之后自动生成缩略图的方法，分享给大家供大家参考。具体实现方法如下：
Action文件:
代码如下:
/**
- 缩略图片生成
- @ path 图片路径
- @ width 图片宽度
- @ height 图片高度
*/
public function actionGetThumb($path,$w,$h) {
$file_name = md5($path . $w . $h);
if (file_exists('./temp/' . $file_name . '.jpg')) {
header('location:/temp/' . $file_name . '.jpg');
Yii::app()->end();
}
Yii::import("ext.EPHPThumb.EPHPThumb");
$thumb = new EPHPThumb();
$thumb->init();
$thumb->create('.' . $path)
->adaptiveResize($w,$h)
->save('./temp/' . $file_name . '.jpg')
->show();
}
/*
public function actionList() {
$attache = Attache::model();
$list = $attache->findAll();
$this->render('list',array('list' => $list));
die;
}
/**
- 文件上传
/
public function actionIndex() {
$path = getcwd() . 'uploads';
$dir = DIRECTORY_SEPARATOR . date('Y') . DIRECTORY_SEPARATOR . date('m');
$dir = str_replace("\","/",$dir);
$uploads_dir = str_replace("\",$path . $dir);
if (!is_dir($uploads_dir) || !is_writeable($uploads_dir)) {
mkdir($uploads_dir,0777,TRUE);
touch($uploads_dir . '/index.html');
}
$uploaded = false;
$model = new Upload();
if (isset($_POST['Upload'])) {
$model->attributes = $_POST['Upload'];
$file = CUploadedFile::getInstance($model,'file');
$newName = substr(md5($file->extensionName . round((microtime(true) 1000))),17) . '.' . $file->extensionName;
$file_name = $uploads_dir . '/' . $newName;
if ($model->validate()) {
$attache = new Attache();
$uploaded = $file->saveAs($file_name,TRUE);
$attache->name = $file->getName();
$attache->path = $dir . '/' . $newName;
$attache->create_time = time();
$attache->save();
}
}
$this->render('index',array(
'model' => $model,
'uploaded' => $uploaded,
'dir' => $uploads_dir,
));
}
}
Upload.PHP:
代码如下:
public $file;
public function rules() {
return array(
array('file','file','types' => 'jpg,gif,png,zip'),
);
}
}
图片显示页面：
代码如下:
图片上传表单：
代码如下:
File was uploaded. Check .
'multipart/form-data'))?>希望本文所述对大家基于Yii框架的PHP程序设计有所帮助。
原文链接：https://www.f2er.com/php/23171.html