Title: URI Normalization issue? (PHP Warning: undefined array key)
Last modified: August 4, 2026

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# URI Normalization issue? (PHP Warning: undefined array key)

 *  [Aharon](https://wordpress.org/support/users/spaceling/)
 * (@spaceling)
 * [5 days, 8 hours ago](https://wordpress.org/support/topic/uri-normalization-issue-php-warning-undefined-array-key/)
 * Hi Koko support,
 * I just wanted to report a PHP Warning I noticed while reviewing our debug log.
   The undefined array key warning appears to concern a page that has a normalized
   permalink slug. (The normalized URL <[https://opensiddur.org/about-this-project/policies/%d7%97%d7%9c%d7%a7-%d7%9e%d7%94%d7%96%d7%9b%d7%95%d7%99%d7%95%d7%aa-%d7%a9%d7%9e%d7%95%d7%a8%d7%95%d7%aa/](https://opensiddur.org/about-this-project/policies/%d7%97%d7%9c%d7%a7-%d7%9e%d7%94%d7%96%d7%9b%d7%95%d7%99%d7%95%d7%aa-%d7%a9%d7%9e%d7%95%d7%a8%d7%95%d7%aa/)
   >, or <[https://opensiddur.org/about-this-project/policies/חלק-מהזכויות-שמורות](https://opensiddur.org/about-this-project/policies/חלק-מהזכויות-שמורות)
   >.)
 * `[03-Aug-2026 16:10:02 UTC] PHP Warning: Undefined array key "/about-this-project/
   policies/%D7%97%D7%9C%D7%A7-%D7%9E%D7%94%D7%96%D7%9B%D7%95%D7%99%D7%95%D7%AA-%
   D7%A9%D7%9E%D7%95%D7%A8%D7%95%D7%AA/" in /home/░░░/``░░░`/`░░░`/wp-content/plugins/
   koko-analytics/src/Pageview_Aggregator.php on line 112 Warning: Undefined array
   key "/about-this-project/policies/%D7%97%D7%9C%D7%A7-%D7%9E%D7%94%D7%96%D7%9B%
   D7%95%D7%99%D7%95%D7%AA-%D7%A9%D7%9E%D7%95%D7%A8%D7%95%D7%AA/" in /home/`░░░`/`
   ░░░`/`░░░`/wp-content/plugins/koko-analytics/src/Pageview_Aggregator.php on line
   112
 * Sharing this edge case message with you in case it may be helpful in your development/
   support of RTL pages.
 * Our environment is `WordPress 7.02` and `PHP 8.4.23`. We found this PHP Warning
   while using `Koko Analytics version 2.5.1`. (We’ve since updated to version 2.5.2.)

Viewing 1 replies (of 1 total)

 *  Plugin Author [Danny van Kooten](https://wordpress.org/support/users/dvankooten/)
 * (@dvankooten)
 * [3 days, 16 hours ago](https://wordpress.org/support/topic/uri-normalization-issue-php-warning-undefined-array-key/#post-18985787)
 * Thanks for sharing [@spaceling](https://wordpress.org/support/users/spaceling/)–
   this is super useful indeed. I’ll be looking into it!

Viewing 1 replies (of 1 total)

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## Tags

 * [RTL](https://wordpress.org/support/topic-tag/rtl/)

 * 1 reply
 * 2 participants
 * Last reply from: [Danny van Kooten](https://wordpress.org/support/users/dvankooten/)
 * Last activity: [3 days, 16 hours ago](https://wordpress.org/support/topic/uri-normalization-issue-php-warning-undefined-array-key/#post-18985787)
 * Status: not resolved