CODEWITHSUNDEEP
phpimage
blueSky
blueSky

Reputation: 247

resize image by height and keeping width by original aspect ratio

$ratio = 16/9;
$rat = $info[0] / $info[1];

if ($rat == $ratio){
    $newimg = imagescale($newimg, 960, 540, IMG_BICUBIC);  // this works
}

elseif ($rat > $ratio){
// here I want something like:
    $newimg = imagescale($newimg, 'auto', 540, IMG_BICUBIC);
}

So how to scale only height to 540 and scale width automatically, keeping the aspect ratio?

Upvotes: 1

Views: 1735

Answers (1)

Syscall
Syscall

Reputation: 19779

You could use $rat * 540 to keep the same ratio, instead of 'auto':

$newimg = imagescale($newimg, $rat * 540, 540, IMG_BICUBIC);

So, if ratio is 4/3 by example, the width will be: 540*4/3 = 720. If the ratio is 16/9, 540*16/19 = 960.

Upvotes: 2

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