<?php
    $path = "files/images/04.jpg";
    $new_path = str_replace("../","",$path);

    $source = imagecreatefromjpeg($path);   //新建圖檔
    /*
    $org_info = getimagesize($path);   //取得圖檔資訊，此為陣列[0]=width,[1]=height,[3]=width & height

    $destination = imagecreatetruecolor($org_info[0],$org_info[1]);    //新建一個新尺寸圖檔
    
    imagecopyresampled($destination,$source,0,0,0,0,$org_info[0],$org_info[1],$org_info[0],$org_info[1]);//複製新建圖檔
    */
    //旋轉圖片
    
    $deg = 360 - (90*0);

    $rotate_img = imagerotate($source, $deg, 0);
    
    imagejpeg($rotate_img,$path,100);                //暫存圖檔 品質為100，0~100
    $i = $i+1;
    $photo = 'room_photo'.$i;
?>

想請問為何我同一張圖片，經過$rotate_img = imagerotate($source, $deg, 0);後存檔，圖片會越變越小