图像上传后图像调整大小时的php内存限制问题

Hy, I have a page where a user can upload an image (one at a time, the second upload overwrites the first one).

When someone chooses an image which is more than 5 MB, the script will upload the image but it will then run another script that will resize the image to make it smaller.

So, i get the image size, and set the maximum size like so:

$size = $_FILES["userImage"]["size"]
$maxSize = 5000000 //this should be 5 MB, right?

then, I move the image to a folder with this line

move_uploaded_file( $tmpName, "../user_img/".$sessionId."/".$sessionId."_img.".$type);  

and in the end, I want to resize the image if it is above 5 MB

if($size > $maxSize){
include('resizeImage2.php'); 
//indicate which file to resize (can be any type jpg/png/gif/etc...)
$file = "../user_img/".$sessionId."/".$sessionId."_img.".$type;

//indicate the path and name for the new resized file
$resizedFile = $file;

//call the function (when passing path to pic)
//smart_resize_image($file, null, 1200, 0, true, $resizedFile, true, false, 100 );
//call the function (when passing pic as string)
smart_resize_image(null , file_get_contents($file), 1200 , 0 , true , $resizedFile , true , false ,100 );
    }

the resizeImage2.php is something I found on the internet at this address

and the problem occurs when I try to upload an image from my PC that is 7MB, and 10004 x 10967 in resolution. I get an error

Allowed memory size of 62914560 bytes exhausted (tried to allocate 40016 bytes)

I know i can change the memory limit in php.ini, but i was wondering if there is another way to make this work? Are any of my scripts badly written?

Thanks in advance!

Try this put it at header on page-

<?php
ini_set('memory_limit','16M');
?>

You can increase this uploaded files limit in your php.ini file, by adding or updating a line similar to the following:

memory_limit = 128M

There are two tricks to increase the max upload size in php

Increasing file upload size by .htaccess

php_value upload_max_filesize 10M

Increasing file upload size by php.ini files

upload_max_filesize = 10M