Update a subreddit's sidebar with the current time (Can be expanded to update anything)

SidebarTime.php

<?php
    define("COOKIES", __dir__."/_cookies.txt");
	
    $reddit_username = "";
    $reddit_password = "";
    $reddit_subreddit = "";

    function getCURL($url, $opt = array()){
        $ch = curl_init();
        
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_USERAGENT, "RedditSideBarUpdater/1.0 by GusGold");
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
        curl_setopt($ch, CURLOPT_COOKIEJAR, COOKIES);
        curl_setopt($ch, CURLOPT_ENCODING, "");
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_AUTOREFERER, true);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
        curl_setopt($ch, CURLOPT_TIMEOUT, 30);
        curl_setopt($ch, CURLOPT_MAXREDIRS, 10);
        curl_setopt($ch, CURLOPT_VERBOSE, false);
        curl_setopt($ch, CURLOPT_HEADER, true);

        curl_setopt_array($ch, $opt);

        $response_raw = curl_exec($ch);

        $header = str_replace("\r\n\r\n", "", substr($response_raw, 0, curl_getinfo($ch, CURLINFO_HEADER_SIZE)));

        foreach (explode("\r\n", $header) as $i => $line){
            if ($i === 0){
                $headers['http_code'] = $line;
            } else {
                list ($key, $value) = explode(': ', $line);
                $headers[$key] = $value;
            }
        }

        $body = substr($response_raw, curl_getinfo($ch, CURLINFO_HEADER_SIZE));

        curl_close($ch);

        return array(
            "header" => $headers,
            "body" => $body,
            "cookies" => COOKIES);
    }

    function checkLoggedIn(){ //Check if the current cookies are valid by getting the authed users info
        global $modHash;
        $login = json_decode(getCURL("https://ssl.reddit.com/api/me.json", array(
            CURLOPT_COOKIEFILE => COOKIES))["body"], true);
        if(isset($login["data"]["name"])){
            if($login["data"]["name"] === $reddit_username){
                $modHash = $login["data"]["modhash"];
                return true;
            } 
        }
        return false;
    }

    $loggedIn = false;

    if(!checkLoggedIn()){ //User isn't authed, so login
        $response = getCURL("https://ssl.reddit.com/api/login", array(
            CURLOPT_CUSTOMREQUEST => "POST",
            CURLOPT_POSTFIELDS => http_build_query(array(
                "api_type" => "json",
                "user" => $reddit_username,
                "passwd" => $reddit_password,
                "rem" => true)),
            CURLOPT_HTTPHEADER => array(
                "Accept: application/json")));
        if($response["body"]){
            if(count(json_decode($response["body"], true)["json"]["errors"]) === 0){
                $loggedIn = true;
            }
        }
        print_r($response);
    } else {
        $loggedIn = true;
    }
    if(!$loggedIn){ //Not able to login (wrong password, etc.)
        file_put_contents("php://stderr", "Unable to log in", FILE_APPEND);
        die("Wasn't able to log in");
    }

    $response = getCURL("http://www.reddit.com/r/" . $reddit_subreddit . "/about/edit.json", array( //Get settings from subreddit as they all need to be supplied when updating the sidebar
        CURLOPT_COOKIEFILE => COOKIES));
    if($response["body"]){
        $current = json_decode($response["body"], true)["data"];
    } else {
        file_put_contents("php://stderr", "Unable to get current SR info: " . print_r($response), FILE_APPEND);
        die("Unable to get current SR info");
    }

    $curDes = explode("\n\n", $current["description"]); //Split description (aka sidebar) by double line breaks (which render as a single line break in markdown) into an array
    foreach($curDes as $line => $text){
        echo $curDes[$line], "<br>";
        if(substr($curDes[$line], 0, 22) === "###Current Server Time"){  //Find the start of the area to update
            $linePosition = $line;
            break;
        }
    }

    if(!$linePosition){ //Start area wasn't found, so don't continue
        file_put_contents("php://stderr", "Unable to find server time string: " . print_r($curDes), FILE_APPEND);
        die("Unable to find server time string");
    }
  

    $newDes = $curDes;
    $time = new DateTime("now", new DateTimeZone("America/Los_Angeles")); //Get the current time in the wanted timezone

    $newDes[$linePosition] = "###Current Server Time\n" . $time->format("m/d/Y - H:i") . " PST"; //Format the time and replace the old time with new time
    $description = implode("\n\n", $newDes); //Rejoin sidebar array by double line breaks;

    $description = html_entity_decode($description); //Issues on reddit side with sending encoded entities, but requiring the decoded entities in return

    $new = array( //Move current settings along with updated settings
        "api_type" => "json",
        "comment_score_hide_mins" => $current["comment_score_hide_mins"],
        "css_on_cname" => $current["domain_css"], //Inconsistencies with reddit send/receive var names
        "description" => $description, //To update
        "header-title" => $current["header-title"],
        "lang" => $current["language"], //More inconsistencies
        "link_type" => $current["content_options"], //and more
        "name" => "",
        "public_description" => $current["public_description"],
        "show_cname_sidebar" => $current["domain_sidebar"], //and more
        "spam_comments" => $current["spam_comments"],
        "spam_links" => $current["spam_links"],
        "spam_selfposts" => $current["spam_selfposts"],
        "sr" => $current["subreddit_id"], //and more
        "submit_link_label" => $current["submit_link_label"], 
        "submit_text" => $current["submit_text"],
        "submit_text_label" => $current["submit_text_label"],
        "title" => $current["title"],
        "type" => $current["subreddit_type"], //and even more
        "uh" => $modHash, 
        "wiki_edit_age" => $current["wiki_edit_age"],
        "wiki_edit_karma" => $current["wiki_edit_karma"],
        "wikimode" => $current["wikimode"]);

    //Further inconsistencies. The following 7 if statements fix a reddit issue that means that if the key is set, the setting is true, regardless of the value
    if($current["default_set"]){
        $new["allow_top"] = "on";
    }

    if($current["collapse_deleted_comments"]){
        $new["collapse_deleted_comments"] = "on";
    }

    if($current["over_18"]){
        $new["over_18"] = "on";
    }

    if($current["show_media"]){
        $new["show_media"] = "on";
    }

    if($current["public_traffic"]){
        $new["public_traffic"] = "on";
    }

    if($current["collapse_deleted_comments"]){
        $new["collapse_deleted_comments"] = "on";
    }

    if($current["exclude_banned_modqueue"]){
        $new["exclude_banned_modqueue"] = "on";
    }

    $response = getCURL("http://www.reddit.com/api/site_admin", array( //Send old settings merged with new sidebar
        CURLOPT_CUSTOMREQUEST => "POST",
        CURLOPT_POSTFIELDS => http_build_query($new),
        CURLOPT_HTTPHEADER => array(
            "Accept: application/json"),
        CURLOPT_COOKIEFILE => COOKIES));
    if($response["body"]){
        if(count(json_decode($response["body"], true)["json"]["errors"]) === 0){
            die("Success!");
        }
    }
    file_put_contents("php://stderr", "Unable to update SR info: " . print_r($response), FILE_APPEND);
    die("failure");
?>