what is wrong in this i am new in php invalid argument implode in php i don't know what is wrong in this happening
<?php
/*Insert values into database*/
if($_POST['is_submit'] == 'yes'){
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = '';
$dbnam = 'canonent_db';
$conn = mysqli_connect($dbhost, $dbuser, $dbpass,$dbnam);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$count = count($_POST['c1']);
$query_values=array();
for($i=0; $i<$count; $i++){
$c11 = mysql_real_escape_string($_POST['c11'][$i]);
$c31 = mysql_real_escape_string($_POST['c31'][$i]);
$c41 = mysql_real_escape_string($_POST['c41'][$i]);
$c51 = mysql_real_escape_string($_POST['c51'][$i]);
$c1 = mysql_real_escape_string($_POST['c1'][$i]);
$c2 = mysql_real_escape_string($_POST['c2'][$i]);
$c3 = mysql_real_escape_string($_POST['c3'][$i]);
$c4 = mysql_real_escape_string($_POST['c4'][$i]);
$c5 = mysql_real_escape_string($_POST['c5'][$i]);
$fc_id1 = mysql_real_escape_string($_POST['c11'][$i]);
$fc_id2 = mysql_real_escape_string($_POST['c31'][$i]);
$fc_id_total=($fc_id1.$fc_id2);
$query_values= ('$c11','$c31','$c41','$c51','$c1','$c2','$c3','$c4','$c5','$fc_id_total') ";
}
$values = implode("," , $query_values);
$sql = "INSERT INTO fileno_data2 (`meter`, `palla`, `pcs`, `c/p`, `date`,`operation`, `e.name`, `qty`, `sing`, `fc_id`) VALUES ('$values')";
mysqli_query( $conn, $sql );
if ($conn->query($sql) === TRUE) {
echo "New record created successfully";
}
else {
echo "Error: " . $conn->error;
}
$conn->close();
}
?>
i have used some ajax in main page need help from respectable seniors implode give warning