file_put_contents failed to open stream: no such file or directory - php-5.6

Question

I create a php file that need to create 2 another files via file_put_contents. The problem when I run this code, the lastinsert.txt and newinsert.txt can't be created. I changed the path of these files but I get the same problems. I tried to create the file manually under my web repository it work fine.
this is my code:
function sendPushNotification($registration_ids, $message) {
$url = 'https://android.googleapis.com/gcm/send';
$fields = array(
'registration_ids' => $registration_ids,
'data' => $message,
);
define('GOOGLE_API_KEY', 'AIzaSyC36gV0pWJgP61mS0JYHadTB66Lz92_1RU');
$headers = array(
'Authorization:key=' . GOOGLE_API_KEY,
'Content-Type: application/json'
);
echo json_encode($fields);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));
$result = curl_exec($ch);
if($result === false)
die('Curl failed ' . curl_error());
curl_close($ch);
return $result;
}
echo $crc1=(int)file_get_contents('http://mywebsite/public_html/CodeIgniter/lastinsert.txt');
$pushStatus = '';
$querycount="SELECT id_relation FROM relations ORDER BY id_relation DESC LIMIT 1";
if($query_run= mysqli_query($querycount)){
while($query_rowcount = mysql_fetch_row($query_run)) {
$res=print_r($query_rowcount[0]);
file_put_contents("http://mywebsite/public_html/CodeIgniter/lastinsert.txt",$query_rowcount[0]);
echo $crc2= (int)file_get_contents('http://mywebsite/public_html/CodeIgniter/lastinsert.txt' );
if($crc1!="" && $query_rowcount[0]>$crc1){
$queryres="SELECT distinct push.title as 'title' from relations join etablissement push on ref_local=push.id where id_relation>".$crc1."";
if($query_run1= mysqli_query($queryres)){
$gcmMylocation = array();
while($query_row1 = mysql_fetch_array($query_run1)) {
$gcmMylocation[]=$query_row1['title'];
$result=print_r($query_row1);
foreach ($gcmMylocation as $value) {
echo $query = "SELECT regId FROM users where company='".$value."'";
if($query_run = mysqli_query($query)) {
$gcmRegIds = array();
while($query_row = mysql_fetch_assoc($query_run)) {
array_push($gcmRegIds, $query_row['regId']);
//$res=print_r($query_row);
}
}
etablissement push on ref_relation=push.id join etablissement mypush on ref_local=mypush.id where id_relation>857 and mypush.title='maison' order by ref_local";
echo $query_title="SELECT push.title as 'title' from relations join etablissement push on ref_relation=push.id join etablissement mypush on ref_local=mypush.id where id_relation>".$crc1." and mypush.title='".$value."'";
if($query_run_tit= mysqli_query($query_title)){
while($query_row_tit = mysql_fetch_array($query_run_tit)) {
$gcmMylocationtit[]=$query_row_tit['title'];
foreach ($gcmMylocationtit as $valuetit) {
$pushMessage=$valuetit;
if(isset($gcmRegIds)) {
$message = array('m' => $pushMessage);
$pushStatus = sendPushNotification($gcmRegIds, $message);
}
}
}
}
}
}
}
}
}
file_put_contents("http://mywebsite/public_html/CodeIgniter/newinsert.txt",$query_rowcount[0]);
}