Question

__return_empty_string()

Returns an empty string.

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description

Useful for returning an empty string to filters easily.

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返回值

(string) Empty string.

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源代码

File: wp-includes/functions.php

function __return_empty_string() {
	return '';
}

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更新日志

Version	description
3.7.0	Introduced.

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User Contributed Notes

1. Skip to note content You must log in to vote on the helpfulness of this noteVote results for this note: 0You must log in to vote on the helpfulness of this note Contributed by Codex

   Basic Usage

   
   // This will add a filter on `example_filter` that returns an empty string
   add_filter( 'example_filter', '__return_empty_string' );