Undefined Array Key Error
February 11, 2025 · AI Conversations
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in /var/www/html/web/app/plugins/sitepress-multilingual-cms/classes/url-handling/class-wpml-absolute-to-permalinks.php (line 33)
$this->taxonomies_query = new WPML_WP_Taxonomy_Query( $this->sitepress->get_wp_api() ); } $home = rtrim( $this->sitepress->get_wp_api()->get_option( 'home' ), '/' ); $parts = parse_url( $home ); $abshome = $parts['scheme'] . '://' . $parts['host']; $path = isset( $parts['path'] ) ? ltrim( $parts['path'], '/' ) : ''; $tx_qvs = join( '|', $this->taxonomies_query->get_query_vars() ); $reg_ex = '@]+)?href="((' . $abshome . ')?/' . $path . '/?(' . $active_langs_reg_ex . ')??(p|page_id|cat_ID|' . $tx_qvs . ')=([0-9a-z-]+))(#?[^"]*)"([^>]+)?>@i'; $text = preg_replace_callback( $reg_ex, [ $this, 'show_permalinks_cb' ], $text );
this error showing in wordpress
### **Fix: Add a Check for 'scheme'**
Modify the following line in `/var/www/html/web/app/plugins/sitepress-multilingual-cms/classes/url-handling/class-wpml-absolute-to-permalinks.php`:
$abshome = $parts['scheme'] . '://' . $parts['host'];
Replace it with:
$scheme = isset($parts['scheme']) ? $parts['scheme'] : 'http'; // Default to 'http' if scheme is missing
$host = isset($parts['host']) ? $parts['host'] : ''; // Ensure host is set
$abshome = $scheme . '://' . $host;
### **Alternative Fix: Check Home URL**
If the issue persists, check your **WordPress Site URL** under:
– **Settings → General**
– Ensure both **WordPress Address (URL)** and **Site Address (URL)** start with `http://` or `https://`.
### **Clear Cache & Debug**
1. **Flush WordPress Permalinks**:
– Go to **Settings → Permalinks**
– Click **Save Changes** (without modifying anything).
2. **Clear WordPress Cache** (if using a caching plugin).
3. **Enable Debugging** (to check for related issues):
– Open `wp-config.php`
– Add or modify:
define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', false);
@ini_set('display_errors', 0);
– Check `/wp-content/debug.log` for errors.
### **Final Step: Plugin Conflict Check**
If the issue persists, deactivate all plugins except **WPML**, then reactivate them one by one to find the culprit.
Let me know if you need further debugging! 🚀
## **Solution**
Modify the following line in `/var/www/html/web/app/plugins/sitepress-multilingual-cms/classes/url-handling/class-wpml-absolute-to-permalinks.php`:
$abshome = $parts['scheme'] . '://' . $parts['host'];
### **Fix the Undefined Array Key Issue**
Change it to:
$scheme = $parts['scheme'] ?? 'http'; // Default to 'http' if missing
$host = $parts['host'] ?? ''; // Default to empty string if missing
$abshome = $scheme . '://' . $host;
This ensures:
✅ If `parse_url($home)` doesn’t return `scheme`, it defaults to `'http'`.
✅ If `parse_url($home)` doesn’t return `host`, it prevents an error.
—
## **Additional Fixes If the Issue Persists**
### **1. Check Your WordPress Site URL**
– Go to **Settings → General** in the WordPress admin.
– Ensure both **WordPress Address (URL)** and **Site Address (URL)** are set correctly and include `https://` or `http://`.
### **2. Flush Permalinks**
– Go to **Settings → Permalinks**.
– Click **Save Changes** (without modifying anything).
### **3. Debug the `$home` Variable**
Before modifying `$home`, add this line to check its value:
error_log('Home URL: ' . print_r($home, true));
Then check the logs in `/wp-content/debug.log`.
### **4. Clear Cache**
If you’re using **W3 Total Cache, WP Super Cache, or any caching plugin**, clear the cache and test again.
—
## **Why This Happens?**
– PHP 8.1+ treats missing array keys more strictly.
– If your WordPress **site URL is not set properly**, `parse_url()` may return an incomplete result.
– WPML or another plugin might be modifying the `home` URL incorrectly.
Try the fix, and let me know if you need more debugging! 🚀