Problem with php code to send simultaneous messages to the database!

Question

I’m trying to create a code covers send messages between users of a system in php, the problem and I can send the message from one user to another but wish it was possible to send to all users, or else to more than one , the same message without having to rewrite.

I created a checkbox field but I’m not able to treat this field, with php

I’m using codeigniter, from what I understand it will give me post a Boolean, true or false

seems easy, just check with if and false or true and register.

but then as I create a loop, to go through the users, I’m a little lost in this question, someone can give me a help there?

THIS IS THE CHECKBOX

<?php
    echo form_label("Enviar a todos os usuarios", "newsletter");
                    $data = array(
                        'name' => 'envia_todos',
                        'id'   => 'envia_todos',
                        'value' => 'accept',
                        'checked' => FALSE,
                        'style' => 'margin:10px',
                        );
                    echo form_checkbox($data);
                ?>

HERE IS THE CODE THAT TRIES TO CREATE THE LOOP AND SEND IT TO THE BANK

$this->load->model("Buscas_model");
        $retorno =array(
            "usuarios" => $this->Buscas_model->enconta_todos_usuarios(),
            ); 
        foreach($retorno['usuarios'] as $usuario){
            $i = 0; 
            $mensagem['destinatario_id'][$i] = $usuario;
            $id_mensagem = $this->Cadastros_model->mensagem($mensagem);
            $i++;
        }

Before arriving at this function the code checks whether Boolean and true or false to call this function.

Answer 1

Looking fast:

First I saw a little mistake in the "foreach" you Zera the $i every time he starts, then he gets $i=0 in everything. has q by before the foreach.

Second does not have the sending codes, but how it works with 1 TEM q work with the loop. In the sending code, has to put at least one !$_POST['envia_todos'] (If it is just a checkbox field with the name sent).

if(!$_POST['envia_todos']){
// Código que consulta no banco e cria um loop com o resultado
// dentro do loop o código de envio com o paramentro de cada usuário 
// (nome, cidade, o que tiver no banco que faça parte da mensagem) que veio da consulta.
}