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Accepted
Alberto Julio Arce Escolar
Asked: 2020-02-22 11:18:06 +0800 CST 2020-02-22 11:18:06 +0800 CST

Problems with php function

  • 772

My question is why this function always returns 0 after it is executed for the second time

in data I send 452, then 452 and this returns 1 but if I send data 453 or 454 or any other value it always returns 0

 public function productoTemp($datos){

       if (isset($_SESSION['tablaComprasTemp'])) {
         $datosT=$_SESSION['tablaComprasTemp'];

    for ($i=0; $i < count($datosT) ; $i++) { 
          $d=explode("||", $datosT[$i]);

          if ($d[4]==$datos) {
            return 1;
          }else{
            return 0;
          }

     }
       }

     }

when returning always 0 it allows me to add repeated products

echo $productoTemp=self::productoTemp($datos2);

  if ($productoTemp==1){

        echo  json_encode($response = array('responsenum' =>  "-1",
          'response' =>  "No puedes tener dos productos repetidos"));

  }

enter image description here

$data 2 contains the product id

 echo $productoTemp=self::productoTemp($datos2);

  if ($productoTemp==1){

        echo  json_encode($response = array('responsenum' =>  "-1",
          'response' =>  "No puedes tener dos productos repetidos"));

  }else{

  $cantidaddb=$respuesta[0]["cantidad"];

  if($cantidaddb>=$datos){

$nombre=$respuesta[0]["nombre"];
  $valor=$respuesta[0]["valor"];
  $datos;
  $datos2;
  $datos3=$datos*(int)$respuesta[0]["valor"];


  $articulo=$nombre."||".
        $datos."||".
        $valor."||".
        $datos3."||".
        $datos2;

  $_SESSION['tablaComprasTemp'][]=$articulo;


  echo  json_encode($response = array('responsenum' =>  "1",
          'response' =>  "Producto Agregado"));

  }else{

     echo  json_encode($response = array('responsenum' =>  "-1",
          'response' =>  "Stock no tiene suficientes productos"));

  }
php

1 Answers

  1. Best Answer

    Trying to answer almost blindly, since I don't know what your session variable is getting, I guess it's getting a string as the variable $datosTI'm creating, since you use an explode and the explode converts a string to an array, so handling that logic I did the following, first to do the test I create a variable $datosTwhich contains a string (taking the reference numbers 450, 451, 452, etc.), and I separate them by the character ||, I use the explode function and then in the for I do the one countof my variable $dthat is already an array, then in ifit I go through my array and I do the validation if $d[$i] es igual a $datosT(which is the value that I pass as an argument that in turn is a string '452') if it finds the match it will return a trueand when you print your functionecho productoTemp($datos);It will print a 1 on the screen, I hope it helps you or guides you to what you want to do, good luck.

    <?php  


$datos = '452';
function productoTemp($datos){

       /*if (isset($_SESSION['tablaComprasTemp'])) {
         $datosT=$_SESSION['tablaComprasTemp'];*/
$datosT = '450||451||452';

$d = explode('||', $datosT);

    for ($i=0; $i < count($d) ; $i++) { 

          if ($d[$i]==$datos) {
            //echo 1;
            return true;
          }/*else{
        return false;

          }*/

     }
       //}

    }
//$datos = '452';

echo productoTemp($datos);

?>
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