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:
复制代码 代码如下:<"ext.EPhpThumb.EPhpThumb");
$thumb = new EPhpThumb();
$thumb->init();
$thumb->create('.' . $path)
->adaptiveResize($w, $h)
->save('./temp/' . $file_name . '.jpg')
->show();
}
/*
* 图片显示
*/
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))), 0, 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' => $uploads_dir,
));
}
}
Upload.php:
复制代码 代码如下:<"codetitle">复制代码 代码如下:<"<">
<"codetitle">复制代码 代码如下:<?php if($uploaded):?>
<p>File was uploaded. Check <?php echo $dir?>.</p>
<?php endif ?>
<?php echo CHtml::beginForm('','post',array
('enctype'=>'multipart/form-data'))?>
<?php echo CHtml::error($model, 'file')?>
<?php echo CHtml::activeFileField($model, 'file')?>
<?php echo CHtml::submitButton('Upload')?>
<?php echo CHtml::endForm()?>
希望本文所述对大家基于Yii框架的PHP程序设计有所帮助。
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