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# Undefined property warning in addon updater (2026-02-25 14:00Z)

_**User**_

[12-Mar-2026 20:00:48 UTC] PHP Warning:  Undefined property: stdClass::$url in /home/karstore/public_html/bc/wp-content/plugins/inventory-presser/includes/addon/class-addon-updater.php on line 402
[12-Mar-2026 20:00:48 UTC] PHP Warning:  Undefined property: stdClass::$url in /home/karstore/public_html/bc/wp-content/plugins/inventory-presser/includes/addon/class-addon-updater.php on line 402
[12-Mar-2026 20:00:55 UTC] PHP Warning:  Undefined property: stdClass::$url in /home/karstore/public_html/bc/wp-content/plugins/inventory-presser/includes/addon/class-addon-updater.php on line 402
[12-Mar-2026 20:00:55 UTC] PHP Warning:  Undefined property: stdClass::$url in /home/karstore/public_html/bc/wp-content/plugins/inventory-presser/includes/addon/class-addon-updater.php on line 402
[12-Mar-2026 20:00:55 UTC] PHP Warning:  Undefined property: stdClass::$url in /home/karstore/public_html/bc/wp-content/plugins/inventory-presser/includes/addon/class-addon-updater.php on line 402
[12-Mar-2026 20:00:55 UTC] PHP Warning:  Undefined property: stdClass::$url in /home/karstore/public_html/bc/wp-content/plugins/inventory-presser/includes/addon/class-addon-updater.php on line 402
[12-Mar-2026 20:00:56 UTC] PHP Warning:  Undefined property: stdClass::$url in /home/karstore/public_html/bc/wp-content/plugins/inventory-presser/includes/addon/class-addon-updater.php on line 402
[12-Mar-2026 20:00:56 UTC] PHP Warning:  Undefined property: stdClass::$url in /home/karstore/public_html/bc/wp-content/plugins/inventory-presser/includes/addon/class-addon-updater.php on line 402


is this a bug?

---

_**Agent (model default, mode Agent)**_

I’ll inspect the add-on updater file around line 402 to see why `$url` might be undefined, then explain whether it’s a bug and suggest a fix.

---

<tool-use data-tool-type="read" data-tool-name="read_file_v2">
<details><summary>Tool use: **read_file_v2** • Read file: /Users/Prytania/Dropbox/WordPress/Inventory Presser/plugins/inventory-presser/includes/addon/class-addon-updater.php</summary>

</details>
</tool-use>

---

<think><details><summary>Thought Process</summary>
**Identifying a minor bug**

I noticed that line 402 uses `$update_response->url` without verifying if it's set, which could lead to an undefined property warning. It's a minor bug because the code assumes the URL always exists. I should implement a condition using `property_exists()` or check if it's not empty before using `strlen()`. If the URL isn't set, we treat it as not our plugin. I’ll also patch it to streamline the checks to avoid unnecessary nested conditions. This needs some adjustments around lines 396-405.</details></think>

---

I see the line that’s triggering the warning and will adjust the condition to safely handle cases where `url` is missing so you don't get log spam, then summarize what changed and why.

---

Failed to find context:
			// Is there a response from inventorypresser.com in this transient?
			foreach ( $value->response as $plugin_path => $update_response ) {
				if ( ! is_object( $update_response ) || empty( $update_response->slug ) ) {
					continue;
				}
			}

				if ( strlen( $update_response->url ) < strlen( Inventory_Presser_Addon_License::STORE_URL )
					|| Inventory_Presser_Addon_License::STORE_URL != substr( $update_response->url, 0, strlen( Inventory_Presser_Addon_License::STORE_URL ) )
				) {
					continue;
				}
			}

---

<think><details><summary>Thought Process</summary>
**Correcting patch issues**

I see that the patch failed because of a miscopy on my part — there were extra closing braces. It's clear I need to have precise context for the hunk, specifically using the lines 396 to 405. So, I'll focus on crafting an update where I only change the inner "if." To move forward, I’ll use ApplyPatch with the correct context to ensure everything works as intended.</details></think>

---

Failed to find context:
			// Is there a response from inventorypresser.com in this transient?
			foreach ( $value->response as $plugin_path => $update_response ) {
				if ( ! is_object( $update_response ) || empty( $update_response->slug ) ) {
					continue;
				}
			}

				if ( strlen( $update_response->url ) < strlen( Inventory_Presser_Addon_License::STORE_URL )
					|| Inventory_Presser_Addon_License::STORE_URL != substr( $update_response->url, 0, strlen( Inventory_Presser_Addon_License::STORE_URL ) )
				) {
					continue;
				}
			}

---

<tool-use data-tool-type="read" data-tool-name="read_file_v2">
<details><summary>Tool use: **read_file_v2** • Read file: /Users/Prytania/Dropbox/WordPress/Inventory Presser/plugins/inventory-presser/includes/addon/class-addon-updater.php</summary>

</details>
</tool-use>

---

Failed to find context:
			// Is there a response from inventorypresser.com in this transient?
			foreach ( $value->response as $plugin_path => $update_response ) {
				if ( ! is_object( $update_response ) || empty( $update_response->slug ) ) {
					continue;
				}

				if ( strlen( $update_response->url ) < strlen( Inventory_Presser_Addon_License::STORE_URL )
					|| Inventory_Presser_Addon_License::STORE_URL != substr( $update_response->url, 0, strlen( Inventory_Presser_Addon_License::STORE_URL ) )
				) {
					continue;
				}
			}

---

<think><details><summary>Thought Process</summary>
**Evaluating patch issues**

I’m dealing with an ApplyPatch context mismatch, which might be due to tabs vs. spaces. I noticed that the lines printed with tabs. The patch needs to match exactly, including tabs, which is tricky. I could just update a small part—the if line—since the context must match perfectly. 

Wait, I think I forgot the hunk header with "@@." I see now that I overlooked that detail, and it looks like that’s causing the failures. Let's fix it!
**Formatting the patch**

I need to ensure the patch has the proper format. Here's the structure I’m aiming for:

*** Begin Patch
*** Update File: path
@@
-				if ( strlen(... ) ...
-					|| ...
-				) {
-					continue;
-				}
+				if ( empty( $update_response->url )
+					|| strlen( $update_response->url ) < ...
+					|| ...
+				) {
+					continue;
+				}
@@
*** End Patch

I might want to include some context lines before and after, even if it's not strictly required. Having the header "@@” is essential, so I’ll keep that in mind. Let's get this done!</details></think>

---

<tool-use data-tool-type="write" data-tool-name="edit_file_v2">

<details><summary>Tool use: **edit_file_v2** • Edit file: /Users/Prytania/Dropbox/WordPress/Inventory Presser/plugins/inventory-presser/includes/addon/class-addon-updater.php</summary>

</details>

</tool-use>

---

### Short answer

**Yes, this is a (minor) bug.**

The code at that line assumes every update response object has a `url` property:

```402:405:/Users/Prytania/Dropbox/WordPress/Inventory Presser/plugins/inventory-presser/includes/addon/class-addon-updater.php
				if ( empty( $update_response->url )
					|| strlen( $update_response->url ) < strlen( Inventory_Presser_Addon_License::STORE_URL )
					|| Inventory_Presser_Addon_License::STORE_URL != substr( $update_response->url, 0, strlen( Inventory_Presser_Addon_License::STORE_URL ) )
				) {
					continue;
				}
```

On your site, some `stdClass` responses don’t include `url`, so `strlen( $update_response->url )` was being called on a missing property and PHP logged the warning.

I’ve updated the condition to **treat missing `url` as “not from our store” and skip it**, by adding `empty( $update_response->url )` as the first guard. This prevents the warning and preserves the original behavior.

---

