# \#error-php-fatal

**URL:** https://community.gravityforms.com/tag/error-php-fatal/3127.md

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## [PHP Fatal Error in GF Survey Add-On — array\_search() null argument in class-gf-survey.php (is\_value\_match\_rank)](https://community.gravityforms.com/t/php-fatal-error-in-gf-survey-add-on-array-search-null-argument-in-class-gf-survey-php-is-value-match-rank/20400)

<div class="topic-metadata">

**Author:** [@eprice](https://community.gravityforms.com/u/eprice)\
**Replies:** 1\
**Last updated:** [August 14, 2026, 7:05pm UTC](https://community.gravityforms.com/t/php-fatal-error-in-gf-survey-add-on-array-search-null-argument-in-class-gf-survey-php-is-value-match-rank/20400 "2026-08-14T19:05:49Z")

</div>

We’re experiencing a recurring PHP fatal error in the Gravity Forms Survey Add-On (v4.2.1) on PHP 8.4, WordPress 7.0.4, Gravity Forms 3.0.2, hosted on WP Engine. Error: PHP Fatal error: Uncaught TypeError: array\_search…