《PHP實戰(zhàn)：yii實現(xiàn)圖片上傳及縮略圖生成的方法》要點：
本文介紹了PHP實戰(zhàn)：yii實現(xiàn)圖片上傳及縮略圖生成的方法，希望對您有用。如果有疑問，可以聯(lián)系我們。
PHP教程本文實例講述了利用yii框架來實現(xiàn)圖片上傳功能并在上傳成功之后自動生成縮略圖的辦法,分享給大家供大家參考.具體實現(xiàn)辦法如下：
PHP教程Action文件:
代碼如下:
<?php
/**
?* TestController.php
?* Created on: 2014-1-26 12:59:36 by Outsider
?*/
class TestController extends CController {
?
??? /**
???? * 縮略圖片生成
???? * @ path 圖片路徑
???? * @ width 圖片寬度
???? * @ height 圖片高度
???? */
??? 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();
??? }
?
??? /*
???? * 圖片顯示
???? */
?
??? public function actionList() {
??????? $attache = Attache::model();
??????? $list = $attache->findAll();
??????? $this->render('list', array('list' => $list));
??????? die;
??? }
?
??? /**
???? * 文件上傳
???? */
??? 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,
??????? ));
??? }
}
PHP教程Upload.php:
代碼如下:
<?php
class Upload extends CFormModel {
?
??? public $file;
?
??? public function rules() {
??????? return array(
??????????? array('file', 'file', 'types' => 'jpg, gif, png,zip'),
??????? );
??? }
}
圖片顯示頁面：
PHP教程自定義圖片大小,縮略圖自動生成
代碼如下:
<?php
/**
?* list.php
?* Created on: 2014-1-26 13:12:01 by Outsider
?*/
?>
<?php foreach ($list as $v): ?>
??? <img src="<?php echo Yii::app()->createUrl('test/getThumb', array('path' => '/uploads' . $v['path'], 'w' => '150', 'h' => '150')) ?>">
<?php endforeach; ?>
PHP教程圖片上傳表單：
代碼如下:
<?php if($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()?>
PHP教程希望本文所述對大家基于Yii框架的PHP程序設(shè)計有所贊助.
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