Android-push-notification-API.php

<?php
require_once('connection.php');
$title=$_POST['title'];
$mes=$_POST['details'];
$loc=$_POST['loc'];
$blood=$_POST['blood'];
//$uiId='gkveBvqzHoVXmAAXKU4rSbaAltu2';
	
    function send ($tokens, $msg)
    {
        $url = 'https://fcm.googleapis.com/fcm/send';
		$server_key='AIzaSyATZezcfRTcR_BPCCiDuKTpcCZc71AVgAQ';
        $fields = array(
            'registration_ids' => $tokens,
            'data' => $msg
            );
        $headers = array(
            'Authorization:key = '.$server_key,
            'Content-Type: application/json'
            );
      $ch = curl_init();
       curl_setopt($ch, CURLOPT_URL, $url);
       curl_setopt($ch, CURLOPT_POST, true);
       curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
       curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
       curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);
       curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
       curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));
       $result = curl_exec($ch);
       curl_close($ch);
       return $result;
    }
    
    if($loc=='Any Location' && $blood=='All'){
        $sql="SELECT token FROM donor";
    }
    elseif($loc=='Any Location'){
        $sql="SELECT token FROM donor WHERE blood like '".$blood."';";
    
    }
    elseif($blood=='All'){
         $sql="SELECT token FROM donor WHERE location like '".$loc."';";
    }
    else{
        $sql="SELECT token FROM donor WHERE blood like '".$blood."' AND location like '".$loc."';";
    }
 
    $result = mysqli_query($con,$sql);
    $tokens = array();
    if(mysqli_num_rows($result) > 0 ){
        while ($row = mysqli_fetch_assoc($result)) {
            $tokens[] = $row["token"];
        }
    
    }
    mysqli_close($con);
	
    $msg = array("message" =>$mes,
                "title"=> $title,
                "type"=>"notification");
    $message_status = send($tokens, $msg);
    echo $message_status;
	?>