[Yii Framework] A component for creating and getting the thumb image path

There may be another good way to create and get the thumb image in Yii, here is my method to do it.

 

1. You have to install this extension, "phpthumb", please search this extension in this website.

 

2. Create a file named "ImageThumb.php", and locate it in protected/components , and insert the code as below:

代码

<?php
/**
*/
class ImageThumb extends CApplicationComponent
{
private $originalPath = "/upload/products/";
private $thumbPath = "/upload/thumbs";

public function createThumb($modelImage, $site="", $resizeW=100, $resizeH=100)
{
$oldImage = $modelImage;
$modelImage = $this->_thumbName($modelImage, $site);
$oldImageResite = $modelImage;

if(!file_exists(Yii::getPathOfAlias("webroot").$this->originalPath.$oldImage))
{
$modelImage = "thumb.jpg";//You shall have a thumb.jpg image exists in path of $this->originalPath
$oldImage = $modelImage;
$modelImage = $this->_thumbName($modelImage, $site);
$oldImageResite = $modelImage;
}




Yii::app()->thumb->setThumbsDirectory($this->thumbPath);
if(!file_exists(Yii::getPathOfAlias("webroot").$this->thumbPath.$oldImageResite))
{
Yii::app()->thumb
->load(Yii::getPathOfAlias("webroot").$this->originalPath.$oldImage)
->resize($resizeW, $resizeH)
->save($modelImage, "JPG", "JPG");
}
return $modelImage;
}




private function _thumbName($modelImage, $site)
{
if(!empty($site))
{
$tem = explode(".", $modelImage);
if(count($tem) > 1)
$modelImage = $tem[0]."_".$site.".".$tem[1];//the file name starts with "m_", "s_", or null;
}
return $modelImage;
}
}

 

 

 

3. Demo

代码

Yii::import("application.components.ImageThumb");
$imageThumb = new ImageThumb();



$imageOne
= $imageThumb->createThumb("example.jpg", "", 580, 280);
$imageTwo = $imageThumb->createThumb("example2.jpg", "s", 100, 70);

 

 

Have fun with Yii.

转载于:https://www.cnblogs.com/davidhhuan/archive/2010/08/23/1806818.html