WP_Error::add()
Method: Adds an error or appends an additional message to an existing error.
Source: wp-includes/class-wp-error.php:194
WP_Error::add_data()
Method: Adds data to an error with the given code.
Source: wp-includes/class-wp-error.php:223
WP_Error::copy_errors()
Method: Copies errors from one WP_Error instance to another.
Source: wp-includes/class-wp-error.php:307
WP_Error::export_to()
Method: Exports the errors in this object into the given one.
Source: wp-includes/class-wp-error.php:295
WP_Error::get_all_error_data()
Method: Retrieves all error data for an error code in the order in which the data was added.
Source: wp-includes/class-wp-error.php:243
WP_Error::get_error_code()
Method: Retrieves the first error code available.
Source: wp-includes/class-wp-error.php:93
WP_Error::get_error_codes()
Method: Retrieves all error codes.
Source: wp-includes/class-wp-error.php:78
WP_Error::get_error_data()
Method: Retrieves the most recently added error data for an error code.
Source: wp-includes/class-wp-error.php:161
WP_Error::get_error_message()
Method: Gets a single error message.
Source: wp-includes/class-wp-error.php:142
WP_Error::get_error_messages()
Method: Retrieves all error messages, or the error messages for the given error code.
Source: wp-includes/class-wp-error.php:112