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How to Get Real Image Sizes on PHP Level in Magento

Jun 16, 2014

Sometimes it is necessary to know the real size of an image before rendering and displaying it on a page. Below you can see the function which returns the array of sizes (such as heigh and width) for a specific image.

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/**
     * Define real sizes of image from image folder
     *
     * @param string $filename   
     * @return array
     */
    public function getImgRealSizes($filename)
    {
        $path = Mage::getBaseDir('media') . DS . $this->getMediaDir() . DS . $filename;
        if (file_exists($path)) {
            $imageObj = new Varien_Image($path);
            return array('height' => $imageObj->getOriginalHeight(),
                         'width' => $imageObj->getOriginalWidth());
        }

        return FALSE;
    }

/**

* Define real sizes of image from image folder

* @param string $filename

* @return array

public function getImgRealSizes($filename)

{

$path = Mage::getBaseDir('media') . DS . $this->getMediaDir() . DS . $filename;

if (file_exists($path)) {

$imageObj = new Varien_Image($path);

return array('height' => $imageObj->getOriginalHeight(),

'width' => $imageObj->getOriginalWidth());

}

return FALSE;

}

Here: $path = Mage::getBaseDir(‘media’) . DS . $this->getMediaDir() . DS . $filename; – full path to the image file

This function is suitable for such modules as Animated Slider and Splashpage.

Here is an example of its usage:

        public function getMediaDir($filename)
    {
        return ‘myfolder’;
    }

    public function myFunction()
    {
        $filename = ‘mypicture.jpg’;
        $sizes = $this->getImgRealSizes($filename);
        echo $sizes[‘height’] /* display real height of current image */
        echo $sizes[‘width’]  /* display rela width */
        }