creating new instance fails PHP

Question

I am relatively new to PHP and having some decent success however I am running into this issue:

If I try to create a new instance of the class GenericEntryVO, I get a 500 error with little to no helpful error information. However, if I use a generic object as the result, I get no errors. I'd like to be able to cast this object as a GenericEntryVO as I am using AMFPHP to communicate serialize data with a Flex client.

I've read a few different ways to create constructors in PHP but the typical 'public function Foo()' for a class Foo was recommended for PHP 5.4.4

//in my EntryService.php class
public function getEntryByID($id)
{
    $link = mysqli_connect("localhost", "root", "root", "BabyTrackingAppDB");

    if (mysqli_connect_errno())
    {
        printf("Connect failed: %s\n", mysqli_connect_error());
        exit();
    }

    $query = "SELECT * FROM Entries WHERE id = '$id' LIMIT 1";

    if ($result = mysqli_query($link, $query))
    {
        // $entry = new GenericEntryVO(); this is where the problem lies!

        while ($row = mysqli_fetch_row($result))
        {
            $entry->id = $row[0];
            $entry->entryType = $row[1];
            $entry->title = $row[2];
            $entry->description = $row[3];
            $entry->value = $row[4];
            $entry->created = $row[5];
            $entry->updated = $row[6];
        }
    }

    mysqli_free_result($result);
    mysqli_close($link);

    return $entry;
}

//my GenericEntryVO.php class 
<?php

class GenericEntryVO
{
    public function __construct()
    {
    }

    public $id; 
    public $title;
    public $entryType;
    public $description;
    public $value;


    public $created;
    public $updated;

    // public $properties;
}

?>

please enable error logging / read the error log to get the real error message behind the "error 500". That should guide you forward. — eis, Nov 12 '12 at 23:01
Can you please share this `little to no helpful error information`? — dev-null-dweller, Nov 12 '12 at 23:13
@eis it looks like it's having a hard time finding the GenericEntryVO.php file? That's odd because other methods I have in my services.php file make use of the GenericEntryVO class with no issue. I will paste it as well. couldn't post the code here because of max characters but here are pastebin links: error log: [link](http://pastie.org/5371978) entire services class: [link](http://pastie.org/5371989) — jusopi, Nov 13 '12 at 15:06

score 0 · Accepted Answer · edited May 23 '17 at 12:04

0

Thanks again for the lead @eis. I didn't realize that you could access an error log in PHP. Being an as3/Flex developer, I am used to using a debugger with breakpoints. Not sure if PHP dev'rs have a similar IDE like Flash Builder.

After seeing that the generic 500 error was an issue with finding the right class to instantiate I did some investigating on my own. I needed to put require_once realpath(dirname(FILE).'/vo/GenericEntryVO.php'); at the top of the class. I was using as3 syntax and expecting the file path to be relative to the current file being processed. Here is where I found this solution:

How do I format a PHP include() absolute (rather than relative) path? It's about the 4th or 5th comment down by a person named @Zoredache

I am not sure if this is the best solution, but it has me up and running again with my data objects getting serialized for consumption in Flex.

edited May 23 '17 at 12:04

Community

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answered Nov 13 '12 at 15:23

jusopi

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for debugging, take a look at xdebug and how to integrate it with your favorite IDE – fd8s0 Nov 13 '12 at 15:26
ooooh, will do thanks @fd8s0. They make it for Eclipse with plenty of resources online on installation. – jusopi Nov 13 '12 at 15:58
1

`realpath()` is not necessary. if you're on php 5.3, your example gets as easy as `include_once __DIR__./vo/GenericEntryVO.php';`. – glasz Nov 13 '12 at 16:06

creating new instance fails PHP

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