How to allow AUTO height in resize function?

Mage::helper('catalog/image')->init($product, 'image')->resize();


Mage::helper('catalog/image')->init($product, 'image')->constrainOnly(true)->keepAspectRatio(true)->keepFrame(false)->resize(600,null);

Using this width will be 600px and the height will auto adjust to aspect ratio.

Please up-vote and mark as answer if helpful. Thanks

  • Could you please mark this answer as accepted, if it helped.? Thanks – Muhammad Mannan Masood Dec 26 '18 at 15:41

Try & check:

Mage::helper('catalog/image')->init($product, 'image')->resize(600,null);

600 = Your image width & null is height

  • 1
    I tired, But no any effect. – Ravi Soni Jun 9 '17 at 11:13

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