Question

I am having an issue with getting a “Allowed memory size of … bytes exhausted” when calling a SQL query thru php. I believe the array creator is stuck in a loop, somehow.

My php:

<?php
function confirm_query($result_set) {
    if (!$result_set) {
        die("DB query fail: " . mysql_error());
    }
}


$con = mysql_connect("mysql15.000webhost.com", "***_mw", "***");
if (!$con) {
        die("DB connect fail: " . mysql_error());
}

$mySqlDB = "a9414387_build";
$dbSelect = mysql_select_db($mySqlDB, $con);
if (!$dbSelect) {
    die("db select fail: " . mysql_error());
}


$sku = $_POST['serching'];
$query = "SELECT * FROM inventory1 WHERE id LIKE '{$sku}%'";
$result = mysql_query($query, $con);
$des = mysql_fetch_array($result);
$matches = mysql_num_rows($result);
$json = array();
if ($matches > 0) {
    while($des) {
        $bus = array(
            'description' => $des['description'],
            'price' => $des['price'],
            'sku' => $des['id'],
            'type' => $des['type'],
        );
        $jsonString = array_push($json, $bus);
    }

    echo json_encode($jsonString);

    } else {
        echo json_encode(NULL);
    }

die();
?>

But, if i comment out:

while($des) {
            $bus = array(
                'description' => $des['description'],
                'price' => $des['price'],
                'sku' => $des['id'],
                'type' => $des['type'],
            );
            $jsonString = array_push($json, $bus);
        }

and replace $jasonString with $des i get something like:

{"0":"4040284","id":"4040284","1":"F","active":"F","2":"T","defaults":"T","3":"aurora,superNova","model":"aurora,superNova","4":null,"defmodel":null,"5":"mboard","type":"mboard","6":"105","price":"105","7":"Intel H67 (1155) Motherboard","description":"Intel H67 (1155) Motherboard","8":"1155","socket":"1155","9":"Not available at this time.","infoDiv":"Not available at this time.","10":"IntelH67Socket1155Motherboard.jpg","image":"IntelH67Socket1155Motherboard.jpg"}

I am not looking to extend the memory size, b/c one small array should not be this big.

Answer 1

$des = mysql_fetch_array($result);
$matches = mysql_num_rows($result);
$json = array();
if ($matches > 0) {
    while($des) {

You need to re-assign $des inside your loop; otherwise, you’re constantly checking the same database row. Try something like this:

$matches = mysql_num_rows($result);
$json = array();
if ($matches > 0) {
    while($des = mysql_fetch_array($result)) {