JSON-第14行的/home/migrande/public_html/sample.php中允许的内存大小为134217728字节（尝试分配72字节）

有人能修复这个代码吗？我想使用php json加载数据库中的所有数据。。。但我怎样才能做到呢

<?php   require_once 'include/db_functions.php'; $db = new DB_Functions();



        $user = $db->getID();

        $response["products"] = array();
    if($user){
        while ($user) {

        $productstbl = array();
            $productstb["product_name"] = $user["product_name"];

            array_push($response["products"], $user);
            }
            echo json_encode($response);
        } else {
            // user failed to store
            $response["error"] = TRUE;
            $response["error_msg"] = "Unknown error occurred in updating!";
            echo json_encode($response);
        }

?>

---

提前感谢

您的代码中是否有方法将

$user

变量设置为

FALSE

因为在我看来，你有一个无限循环：

while ($user){
    ....
    ....
    //You shoul have a way to set $user to false since it is your flag
    $user = false; 
}

Sample.php

<?php   require_once 'include/db_functions.php'; $db = new DB_Functions();



        $user = $db->getID();

        $response["products"] = array();
    if($user){
        while ($user) {

        $productstbl = array();
            $productstb["product_name"] = $user["product_name"];

            array_push($response["products"], $user);
            }
            echo json_encode($response);
        } else {
            // user failed to store
            $response["error"] = TRUE;
            $response["error_msg"] = "Unknown error occurred in updating!";
            echo json_encode($response);
        }

?>

Db_Functions.php

<?php

class DB_Functions {

    private $conn;

    // constructor
    function __construct() {
        require_once 'db_connect.php';
        // connecting to database
        $db = new Db_Connect();
        $this->conn = $db->connect();
    }

    // destructor
    function __destruct() {

    }
public function getID() {
   $pro_cat_id = "101";

      $stmt = $this->conn->prepare("SELECT product_name FROM products WHERE pro_cat_id = ?");
      $stmt->bind_param("s", $pro_cat_id);
      $stmt->execute();
      $stmt->num_rows();


      while($user=$stmt->fetch()) {
            return $user;
        }
      $stmt->close();

   }
}?>

[Allowed memory size]错误，大多发生在存在无限循环时。您知道如何修复此问题吗？这是完整的代码吗？您在“while（$user）{…}”处有一个无限循环-至少我看不到$user在哪里再次设置为false。我可以在哪里设置$user=false？