<?php

function resize_img($url, $largeur, $hauteur) {
	$infos_image = @getimagesize($url);
	if($infos_image) {
		if($infos_image[0] > $largeur OR $infos_image[1] > $hauteur) {
			if($infos_image[0] > $infos_image[1]) {
				$ab = $infos_image[0] / $largeur;
				$height = $infos_image[1] / $ab;
				$width = $infos_image[0] / $ab;
			} elseif($infos_image[1] > $infos_image[0]) {
				$ab = $infos_image[1] / $hauteur;
				$height = $infos_image[1] / $ab;
				$width = $infos_image[0] / $ab;
			} else {
				$ab = $infos_image[1] / $hauteur;
				$height = $infos_image[1] / $ab;
				$width = $infos_image[0] / $ab;
			}
		}
		elseif($infos_image[0] < $largeur) $width = $infos_image[0];
		elseif($infos_image[1] < $hauteur) $height = $infos_image[1];
		else {
			$height = $hauteur;
			$width = $largeur;
		}
		return array($height, $width);
	} else {
		return false;
	}
}