PHP resize image proportionally with max width or weight [closed]

Question

There is any php script that resize image proportionally with max widht or height??

Ex: I upload image and this original size is w:500 h:1000. But, I want to resize this thats max height is width and height is 500... That the script resize the image for w: 250 h: 500

Answer 1

All you need is the aspect ratio. Something along these lines:

$fn = $_FILES['image']['tmp_name']; $size = getimagesize($fn); $ratio = $size[0]/$size[1]; // width/height if( $ratio > 1) {     $width = 500;     $height = 500/$ratio; } else {     $width = 500*$ratio;     $height = 500; } $src = imagecreatefromstring(file_get_contents($fn)); $dst = imagecreatetruecolor($width,$height); imagecopyresampled($dst,$src,0,0,0,0,$width,$height,$size[0],$size[1]); imagedestroy($src); imagepng($dst,$target_filename_here); // adjust format as needed imagedestroy($dst); 

You'll need to add some error checking, but this should get you started.