wpsnoop Fatal error: Cannot redeclare encode64()

If you are dealing with a WordPress issue where a PHP Function encode64() 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 30 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 30 different instances of potential conflicts where different plugins or themes share the function name.

Examples of this error include:

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-ablecommerce-to-woocommerce/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: AbleCommerce to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-actinic-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: Actinic to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-cre-loaded-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: Loaded Commerce to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-cs-cart-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: CS-Cart to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-cubecart-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: CubeCart to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-epages-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: ePages to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-gambio-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: Gambio to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-interspire-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: Interspire to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-joocart-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: JooCart to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-magento-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: Magento to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-mijoshop-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: MijoShop to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-miwoshop-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: MiwoShop to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-modified-ecommerce-shopsoftware-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: modified eCommerce Shopsoftware to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-nopcommerce-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: NopCommerce to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-opencart-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: OpenCart to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-oscmax-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: osCMax to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-oscommerce-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: osCommerce to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-oxid-eshop-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: OXID eShop to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-pinnacle-cart-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: Pinnacle Cart to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-shopp-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: Shopp to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-tomatocart-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: TomatoCart to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-ubercart-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: Ubercart to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-virtuemart-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: VirtueMart to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-woocommerce-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: WooCommerce to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-wp-e-commerce-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: WP e-Commerce to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-wp-estore-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: WordPress eStore Plugin to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-x-cart-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: X-Cart to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-xtcommerce-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: xt:Commerce to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-yahoo-store-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: Yahoo! Store to Woocommerce Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare encode64() (previously declared in wp-content/plugins/cart2cart-zen-cart-to-woocommerce-migration/passwords/cart2cart-password-migration.php:196)

This file is part of the WordPress plugin Cart2cart: Zen Cart to Woocommerce Plugin 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.