PHP implements image scaling function class_PHP tutorial

Copy code The code is as follows:

/**
* The Images class is an image processing class
* @package application.controllers
* @since 1.0
*/
class Images
{


/**
* Zoom image
* @param $source original image
* @param $newfile new image
* @param $pre zoom ratio
*/
public function thumn($source,$pre,$newfile)
{
//Get images Size
list($s_w,$s_h)=getimagesize($source);
//Generate new image size
$new_w=$s_w*$pre;
$new_h=$s_h* $pre;

//Create a new image
$new_f=imagecreatetruecolor($new_w, $new_h);
//Create an image with a resource image
$sour_f=imagecreatefromjpeg($source);
/ /Copy the resource image to a new image
imagecopyresampled($new_f, $sour_f, 0, 0, 0, 0, $new_w, $new_h, $s_w, $s_h);
//Output the image to the browser
imagejpeg($new_f,$newfile);

imagedestroy($new_f);
imagedestroy($sour_f);
}
}
?>

http://www.bkjia.com/PHPjc/621680.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/621680.htmlTechArticleCopy the code as follows: ?php /*** The Images class is an image processing class * @package application.controllers * @since 1.0*/ class Images { /** * Zoom image * @param $source original picture...