wpsnoop Fatal error: Cannot redeclare set_value()

If you are dealing with a WordPress issue where a PHP Function set_value() was already declared it is most likely due to a plugin/theme conflict.

wpsnoop scanned and analyzed over 100,000 WordPress plugins and themes to find and locate potential conflicts including functions that share the same name.

This page has information on the 13 places where that function is declared and used in WordPress plugins and themes.

Note: Our database currently only taps into the free themes and plugins available in the publicly available WordPress plugins and themes, if your site uses paid plugins, themes or custom code there may be additional conflicts.


Our database has uncovered 13 different instances of potential conflicts where different plugins or themes share the function name.

Examples of this error include:

PHP Fatal error: Cannot redeclare set_value() (previously declared in wp-content/plugins/islamic-archive-for-islam-and-hinduism/lib/ifh_function.php:70)

This file is part of the WordPress plugin Islamic Archive For Islam and Hinduism and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare set_value() (previously declared in wp-content/plugins/islamic-archive-for-islam-for-christians/lib/ifc_function.php:70)

This file is part of the WordPress plugin Islam for Christians Archive and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare set_value() (previously declared in wp-content/plugins/islamic-archive-for-new-muslims/lib/nm_function.php:70)

This file is part of the WordPress plugin Islamic Archive For New Muslims and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare set_value() (previously declared in wp-content/plugins/islamic-archive-for-prayer-in-islam/lib/pii_function.php:70)

This file is part of the WordPress plugin Islamic Archive For Prayer In Islam and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare set_value() (previously declared in wp-content/plugins/islamic-content-archive/lib/function.php:67)

This file is part of the WordPress plugin Islamic Content Archive and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare set_value() (previously declared in wp-content/plugins/islamic-content-archive-for-dawah-skills/lib/ds_function.php:70)

This file is part of the WordPress plugin Islamic Content Archive For Dawah Skills and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare set_value() (previously declared in wp-content/plugins/islamic-content-archive-for-learn-the-quran/lib/ltq_function.php:70)

This file is part of the WordPress plugin Islamic Content Archive For Learn the Quran and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare set_value() (previously declared in wp-content/plugins/islamic-content-archive-for-muslim-e-library/lib/ica_ml_function.php:70)

This file is part of the WordPress plugin Islamic Content Archive For Muslim e-Library and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare set_value() (previously declared in wp-content/plugins/islamic-content-archive-for-the-faith/lib/tf_function.php:70)

This file is part of the WordPress plugin Islamic Content Archive For The Faith and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare set_value() (previously declared in wp-content/plugins/islamic-content-archive-for-truth-seeker/lib/ts_function.php:70)

This file is part of the WordPress plugin Islamic Content Archive For Truth Seeker and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare set_value() (previously declared in wp-content/plugins/wp-jet-player/includes/wp-jet-player-functions.php:77)

This file is part of the WordPress plugin WP Jet Player and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare set_value() (previously declared in wp-content/plugins/postsible-facebook-content-management/form_helper.php:583)

This file is part of the WordPress plugin Postsible : Facebook Content Management and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare set_value() (previously declared in wp-content/plugins/age-gate/admin/third-party/form-helper.php:692)

This file is part of the WordPress plugin Age Gate and could be interacting with another theme or plugin and causing a fatal error.

The error occurs because two (or more) plugins that you are using are both trying to declare a function with the same name.