Removing whitespace string from a string variable in php - php

Question

I tried removing the whitespace but don´t work. I use trim for remove spaces.
I realized in php, for callback in a responseText ajax.
$orderHTML = $producto['id'].'#'.$producto['nombre_producto'].'*'.$producto['precioVenta'].'*'.$producto['descripcion'].'*'.$producto['descatalogado'].'#'.$producto['cantidad_stock'];
echo trim($orderHTML);
In my ajax the result data is:
data: " 1#jeans*1.00**0#100"
I´ve got my call a php is:
GET "http://localhost:8080/ajax/products_ajax.php?idProducto=1&opcion=2"
My php is:
<?php
require_once '../../vendor/autoload.php';
require_once '../../config.php';
require_once '/functions/function_orders.php';
$opcion = $_REQUEST['opcion'];
switch($opcion)
{
case '1':
if(isset($_POST['parametro1'])&&isset($_POST['parametro2']))
{
$orderHTML = getOrdersProduct($_POST['parametro1'],$_POST['parametro2']);
echo trim($orderHTML);
}
break;
case '2':
if(isset($_GET['idProducto']))
{
$producto = getOrdersProduct1($_GET['idProducto']);
$orderHTML = trim($producto['id']).'#'.$producto['nombre_producto'].'*'.$producto['precioVenta'].'*'.$producto['descripcion'].'*'.$producto['descatalogado'].'#'.$producto['cantidad_stock'];
echo trim($orderHTML);
}
}
My query in idiorm:
function getOrdersProduct1($identificador)
{
return ORM::for_table('producto')->
where('id',$identificador)->find_one()->as_array();
}
I realize one var_dump($productos);die();
array (size=11)
'id' => string '1' (length=1)
'nombre_producto' => string 'jeans' (length=6)
'nombre_latin' => null
'peso' => string '100.00' (length=6)
'descatalogado' => string '0' (length=1)
'dimensiones' => null
'descripcion' => null
'cantidad_stock' => string '100' (length=3)
'precioVenta' => string '1.00' (length=4)
'gama_id' => string '2' (length=1)
'proveedor_id' => string '1' (length=1)
What am I doing wrong? thanks

Answer 1

you have to use the trim function with the second argument correctly. if all that fails try
$str = trim(preg_replace('/\s+/',' ', $str));
the line of code will remove extra spaces, as well as leading and trailing spaces. this is combined with trim and preg_replace.

Answer 2

It looks to me that your $producto['id'] is a text field of fixed length and therefore has leading spaces.
You should use trim() or ltrim() to remove these before concatenating the values into the $orderHTML, then later when you come to read the code it will be self documenting as to why you had to do this manipulation, like so
$orderHTML = ltrim($producto['id']) . '#' .
$producto['nombre_producto'].'*'.
$producto['precioVenta'].'*'.
$producto['descripcion'].'*'.
$producto['descatalogado'].'#'.
$producto['cantidad_stock'];
echo $orderHTML;