Resizing images php form - php

Question

i have two type of image upload :
first high resolution :
$specialImages = count($_FILES['specialImg']['name']);
$specialMinwidth = 3000;
$specialMinheight = 2500;
$urlSpecialImages = array();
if ($specialImages) {
for ($i=1; $i<=$specialImages; $i++) {
if ($_FILES['specialImg']['name'][$i] != "") {
if ((($_FILES['specialImg']['type'][$i] == "image/pjpeg") ||
($_FILES['specialImg']['type'][$i] == "image/jpeg") ||
($_FILES['specialImg']['type'][$i] == "image/png")) &&
($_FILES['specialImg']['size'][$i] < $this->return_bytes(ini_get('post_max_size')))) {
list($width, $height, $type, $attr) = getimagesize($_FILES['specialImg']['tmp_name'][$i]);
if ($width >= $specialMinwidth && $height >= $specialMinheight) {
$urlSpecialImages[$i] = $_FILES['specialImg']['tmp_name'][$i];
}
else {
$this->errors[] = $this->module->l("L'image doit être au format minimum de 3000px x 2500px", 'addproduct');
}
second low resolution :
$images = count($_FILES['images']['name']);
$minwidth = 1500;
$minheight = 1500;
if ($images <= Configuration::get('JMARKETPLACE_MAX_IMAGES')) {
for ($i=1; $i<=Configuration::get('JMARKETPLACE_MAX_IMAGES'); $i++) {
if ($_FILES['images']['name'][$i] != "") {
if ((($_FILES['images']['type'][$i] == "image/pjpeg") ||
($_FILES['images']['type'][$i] == "image/jpeg") ||
($_FILES['images']['type'][$i] == "image/png")) &&
($_FILES['images']['size'][$i] < $this->return_bytes(ini_get('post_max_size')))) {
list($width, $height, $type, $attr) = getimagesize($_FILES['images']['tmp_name'][$i]);
if ($width == $minwidth && $height == $minheight) {
$url_images[$i] = $_FILES['images']['tmp_name'][$i];
}
else {
$this->errors[] = $this->module->l('The image format need to be 1500 x 1500 pixels', 'addproduct');
}
i want to use the special $specialImages uploaded and resize them to . 1500x1500 on images low resolution !
because i want to get both resolution by one upload ! how can i do that ?

Answer 1

Image resize function example:
function resizeImage($file = 'image.png', $maxwidth = 1366){
error_reporting(0);
$image_info = getimagesize($file);
$image_width = $image_info[0];
$image_height = $image_info[1];
$ratio = $image_width / $maxwidth;
$info = getimagesize($file);
if ($image_width > $maxwidth) {
// GoGoGo
$newwidth = $maxwidth;
$newheight = (int)($image_height / $ratio);
if ($info['mime'] == 'image/jpeg') {
$thumb = imagecreatetruecolor($newwidth, $newheight);
$source = imagecreatefromjpeg($file);
imagecopyresized($thumb, $source, 0, 0, 0, 0, $newwidth, $newheight, $image_width, $image_height);
echo imagejpeg($thumb,$file,90);
}
if ($info['mime'] == 'image/jpg') {
$thumb = imagecreatetruecolor($newwidth, $newheight);
$source = imagecreatefromjpeg($file);
imagecopyresized($thumb, $source, 0, 0, 0, 0, $newwidth, $newheight, $image_width, $image_height);
echo imagejpeg($thumb,$file,90);
}
if ($info['mime'] == 'image/png') {
$im = imagecreatefrompng($file);
$im_dest = imagecreatetruecolor($newwidth, $newheight);
imagealphablending($im_dest, false);
imagecopyresampled($im_dest, $im, 0, 0, 0, 0, $newwidth, $newheight, $image_width, $image_height);
imagesavealpha($im_dest, true);
imagepng($im_dest, $file, 9);
}
if ($info['mime'] == 'image/gif') {
$im = imagecreatefromgif($file);
$im_dest = imagecreatetruecolor($newwidth, $newheight);
imagealphablending($im_dest, false);
imagecopyresampled($im_dest, $im, 0, 0, 0, 0, $newwidth, $newheight, $image_width, $image_height);
imagesavealpha($im_dest, true);
imagegif($im_dest, $file);
}
}}
Use:
resizeImage('D:\tmp\11.png', 1366);