PHP - Programar link con php

if (isset($_GET['n'])){

	$n= $_GET['n']+1;}

	else

	$n=1;

$formulario_recurso = '

<form action="recurso.php" method="post" name="recursos" id="recursos">

  <table width="715" border="1" align="center" id="tablaRecursos">

    <tr>

      <td align="center" valign="middle">CANT</td>

      <td align="center" valign="middle">UNIDAD</td>

      <td align="center" valign="middle">DESC</td>

      <td align="center" valign="middle">PRECIO UNITARIO</td>

      <td align="center" valign="middle">IMPORTE</td>

      <td colspan="2" align="center" valign="middle">Acciones</td>

    </tr>';

	$celda_cantidad = ' <tr> <td> <label for="cant"></label>

        <input name="cantidad_recurso[]"  size="8" value="';

  	$celda_unidad = ' <td valign="middle"><label for="select"></label>

        <select name="unidad_entrada[]" id="select">

          <option value="pieza">pieza(s)</option>

          <option value="caja">caja(s)</option>

          <option value="litro">litro(s)</option>

          <option value="kilo">kilo(s)</option>

        </select></td>';

  	$celda_descripcion = '<td valign="middle">';

	$celda_precio = '<td><label for="precio"></label>

        <input name="precio_unitario[]" size="8" value="';

	$celda_importe = '<td><input name="importe[]" size="12" value="';

	$celda_calcular = '<td><input type="submit" name="Submit" value="Calcular" /></td>';

	$celda_agregar = '<td width="43"><a href="ffactura.php?n='.$n.'">+</a></td>';

	$campo_oculto = ' <input name="oculto" type="hidden" value="10" />';

	$fila_subtotal =' <tr>

      <td height="31" colspan="4" align="center" valign="middle">&nbsp;</td>

      <td align="right" valign="middle" bgcolor="#CCCCCC"><input type="submit" name="button3" id="button3" value="Subtotal" /></td>

      <td colspan="2" align="center" valign="middle" bgcolor="#CCCCCC"><label for="textfield"></label>

      <input name="subtotal" type="text" id="textfield" size="15" /></td>

    </tr>';

	$fila_iva ='<tr>

      <td colspan="4" align="center" valign="middle">&nbsp;</td>

      <td align="right" valign="middle" bgcolor="#CCCCCC">I.V.A</td>

      <td colspan="2" align="center" valign="middle" bgcolor="#CCCCCC"><label for="select2"></label>

        <select name="select2" id="select2">

          <option value="16">16%</option>

          <option value="11">11%</option>

      </select></td>

    </tr>';

	$fila_total=' <tr>

      <td colspan="4" align="center" valign="middle"><label for="radio"></label></td>

      <td align="right" valign="middle" bgcolor="#CCCCCC"><input type="submit" name="button2" id="button2" value="TOTAL" /></td>

      <td colspan="2" align="center" valign="middle" bgcolor="#CCCCCC"><input name="total" type="text" id="textfield3" size="15" /></td>

    </tr>';

	$fila_enviar = '<tr><td colspan="7" align="center" valign="middle"><input type="submit" name="enviar" id="enviar" value="Enviar" /></td></tr>';

echo $formulario_recurso;

		$mysqli = mysqli_connect("", "", "", "");

for ($i=0; $i<$n; $i++){

	echo $celda_cantidad;

	@$cant= $_GET["cantidad_recurso"][$i];

		echo $cant;

		echo '">';

	echo $celda_unidad;

	echo $celda_descripcion;

	include ("autorecurso.php");

	 echo "</td>";

	echo $celda_precio;

	@$precio= $_GET["precio_unitario"][$i];

	echo $precio;

	echo '"</td>';

	echo $celda_importe;

	  if (isset($_GET["cantidad_recurso"][$i])||(isset ($_GET["precio_unitario"][$i]))){

	  $cant = $_GET['cantidad_recurso'][$i];

	  $precio = $_GET['precio_unitario'][$i];

	  if(isset($_GET['importe'][$i])){

	  $importe = $_GET['importe'][$i];

	  $importe = $cant * $precio;

		  echo $importe;

	 	 }

	  }

	 echo '" size="12"/></td>';

	 echo $celda_calcular;

	 echo $celda_agregar;

	 echo $campo_oculto;

	}

	 echo $fila_subtotal;

	 echo $fila_iva;

	 echo $fila_total;

	echo $fila_enviar;

	echo $i;

?>

foreach($_SESSION["cant"] as $value)

{

    echo "<p>".$value."</p>";

}

$_SESSION["cant"][]=array($valor1,$valor2,...);

foreach($_SESSION["cant"] as $value)

{

    echo "<p>";

        echo $value[0]."-".$value[1]."-".$value[2];

    echo "</p>";

}