PHP image reduction function_PHP tutorial

删除了原始图片保留了操作后的图片

  /**
* Reduce image function
* @param string $fileName
* @return void
​*/
private function createSmallImg($fileName)
{
    list($width,$height,$type,$attr) = getimagesize($fileName);
    $imgOld=imagecreatefromjpeg($fileName);
    $imgObj=imagecreatetruecolor($width-100,$height-100);
    if(function_exists('imagecopyresampled'))
    {
    imagecopyresampled($imgObj,$imgOld,0,0,0,0,$width-100,$height-100,imagesx($imgOld),imagesy($imgOld));
    }
    else
    {
    imagecopyresized($imgObj,$imgOld,0,0,0,0,$width-100,$height-100,imagesx($imgOld),imagesy($imgOld));
    }
    imagedestroy($imgOld);
    unlink($fileName);
    imagejpeg($imgObj,$fileName,100);
    chmod($fileName,0777);
    imagedestroy($imgObj);
 

http://www.bkjia.com/PHPjc/478444.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/478444.htmlTechArticle删除了原始图片保留了操作后的图片 /*** Reduce image function * @param string $fileName * @return void*/ private function createSmallImg($fileName) { list($width,$heigh...