It does not show all the data of the mysql database in my table

The problem is that you are eating the first record once you execute the query, here:

$stmt = $mysqli->prepare($sql);
if ($stmt) {
    $stmt->execute();
    $stmt->store_result();
    $row = mi_fetchassoc($stmt); // <== Aquí
}

So when you get here:

            <tbody>
            <?php while($row = mi_fetchassoc($stmt))
                { ?>
            <tr>

now you start from the second record.

Try simply removing the fetch (my_fetchassoc) that exists after the execute. You do not need a fetch at that time. The subsequent code should be in charge of making the fetch.

Complement to the answer of @Julio, and because part of your code seems familiar, I must say that mi_fetchassoc was in the not too distant past a function that I had invented to store the result set in an array < strong> when using prepared queries and the mysqlnd driver was not installed.

The case was exposed here in full: How to obtain an associative arrangement using queries prepared with mysqli? and there we can actually see the mi_fetchassoc function. @DBulten's response is optimal for those cases and is what I recommend . If you decide to use it, it would only be enough to recover in a variable what will return the function Arreglo_Get_Result of the answer already mentioned.

For example:

$resultado= Arreglo_Get_Result($stmt);

In $resultado you have your array and you only read it or you pass it to where you want without needing more manipulations.

Here is a full working example .

In summary, if you decide on this function, the code would look like this:

$sql = "SELECT id, nombre, costo, horario, acercade, edad, sexo, servicios, usuario_municipio FROM usuarios"; 
$stmt = $mysqli->prepare($sql);
if($stmt){
    $stmt->execute();
    /*Tendrás los resultados en $arrDatos sin necesidad de ninguna otra manipulación*/
    $arrDatos=myGetResult($stmt);
    $stmt->close();
}
$mysqli->close();

/*
    * FUNCION QUE EMULA EL FETCH_ASSOC DE PDO
    * Esta función nos permite crear un array asociativo con los resultados
    * Así accedemos fácimente a su valor por el nombre de columna en la base de datos
    * Es particularmente útil cuando en el SELECT tenemos muchas columnas
    * porque de lo contrario, tendríamos que hacer un bind de cada columna a mano
    * Esta función se puede incorporar a una clase utilitaria, para re-usarla en
    * todas las consultas que requieran este tipo de operaciones
*/

function myGetResult( $Statement ) {
    $RESULT = array();
    $Statement->store_result();
    for ( $i = 0; $i < $Statement->num_rows; $i++ ) {
        $Metadata = $Statement->result_metadata();
        $PARAMS = array();
        while ( $Field = $Metadata->fetch_field() ) {
            $PARAMS[] = &$RESULT[ $i ][ $Field->name ];
        }
        call_user_func_array( array( $Statement, 'bind_result' ), $PARAMS );
        $Statement->fetch();
    }
    return $RESULT;
}

But ... do you really need a query prepared in this case?

The query: SELECT id, nombre, costo, horario, acercade, edad, sexo, servicios, usuario_municipio FROM usuarios does not imply any risk of SQL injection, so you can run it without any problem using the query method simply. That way you save:

• Prepare it
• Execute it
• Confront the difficulty of mysqli to store prepared query results explained above

In that case, obtaining an associative array is simpler, like this:

$sql = "SELECT id, nombre, costo, horario, acercade, edad, sexo, servicios, usuario_municipio FROM usuarios"; 
$datos = $mysqli->query($sql);
if($datos->num_rows > 0) {
    $arrDatos=array();
    while ($row = $datos->fetch_assoc())
    {
        $arrDatos[]=$row;
    }
}
 /*Aquí puedes disponer de $arrDatos que será un arreglo asociativo con los resultados*/
 /*Cerrar recursos*/