refactor: manage subscribers list in json

Author: DeFiTON

func_subscribers.php

@@ -0,0 +1,27 @@
+<?php
+function registerSubscriber($chat_id, array $data){
+    $file = __DIR__.'/subscribers.json';
+    $first = isset($data['message']['from']['first_name']) ? $data['message']['from']['first_name'] : '';
+    $last = isset($data['message']['from']['last_name']) ? $data['message']['from']['last_name'] : '';
+    $usern = isset($data['message']['from']['username']) ? $data['message']['from']['username'] : '';
+    $record = [
+        'chat_id' => (int)$chat_id,
+        'name' => trim(filter_var($first.' '.$last, FILTER_SANITIZE_FULL_SPECIAL_CHARS)),
+        'username' => trim(filter_var($usern, FILTER_SANITIZE_FULL_SPECIAL_CHARS))
+    ];
+    $list = [];
+    if(file_exists($file)){
+        $content = file_get_contents($file);
+        $list = json_decode($content, true);
+        if(!is_array($list)) $list = [];
+    }
+    foreach($list as $item){
+        if($item['chat_id'] === $record['chat_id']){
+            return;
+        }
+    }
+    $list[] = $record;
+    file_put_contents($file, json_encode($list, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE), LOCK_EX);
+    @chmod($file, 0600);
+}
+?>

tgbot.php

@@ -22,7 +22,8 @@
 include 'func_cheque.php';
 include 'func_staking.php';
 include 'func_exchange.php';
-include 'func_exchange2.php';
+include 'func_exchange2.php';
+include 'func_subscribers.php';
 
 #################################
 
@@ -69,35 +70,7 @@
 ############### START ###############
 if( preg_match("/\/start/i", $data['message']['text'] )){
 
-//register subscriber
-$subscribersFile = 'subscribers.json';
-$first = isset($data['message']['from']['first_name']) ? $data['message']['from']['first_name'] : '';
-$last = isset($data['message']['from']['last_name']) ? $data['message']['from']['last_name'] : '';
-$usern = isset($data['message']['from']['username']) ? $data['message']['from']['username'] : '';
-$newrecord = [
-        'chat_id' => (int)$chat_id,
-        'name' => trim(filter_var($first." ".$last, FILTER_SANITIZE_FULL_SPECIAL_CHARS)),
-        'username' => trim(filter_var($usern, FILTER_SANITIZE_FULL_SPECIAL_CHARS))
-];
-$subscribers = [];
-if(file_exists($subscribersFile)){
-        $fileData = file_get_contents($subscribersFile);
-        $subscribers = json_decode($fileData, true);
-        if(!is_array($subscribers)) $subscribers = [];
-}
-$exists = false;
-foreach($subscribers as $record){
-        if($record['chat_id'] === $newrecord['chat_id']){
-                $exists = true;
-                break;
-        }
-}
-if(!$exists){
-        $subscribers[] = $newrecord;
-        file_put_contents($subscribersFile, json_encode($subscribers, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE), LOCK_EX);
-        @chmod($subscribersFile, 0600);
-}
-//register subscriber
+registerSubscriber($chat_id, $data);
 
 $r = saveReferral($data);