<?php
ini_set('display_errors',1); // enable php error display for easy trouble shooting
error_reporting(E_ALL); // set error display to all

function db_insert($table, $array = array()) {
    global $con;

    foreach ($array as $field => $value) {
        $fields[] = $field;
        $values[] = $con->real_escape_string($value);
    }

    $sql = "INSERT INTO {$table} (`" . implode("`,`", $fields) , "`) VALUES ('" . implode("','", $values) . "')";
    if ($con->query($sql)) {
        return true;
    }
    return false;
}

// HOW TO USE:

$array = array(
                    'column1' => 'value1',
                    'column2' => 123,
                    'column3' => 'value3'
                    )


insert('table_name', $array);