Question

wp_validate_boolean( mixed $var )

Filter/validate a variable as a boolean.

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description

Alternative to filter_var( $var, FILTER_VALIDATE_BOOLEAN ).

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参数

$var

(mixed) (Required) Boolean value to validate.

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返回值

(bool) Whether the value is validated.

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源代码

File: wp-includes/functions.php

function wp_validate_boolean( $var ) {
	if ( is_bool( $var ) ) {
		return $var;
	}

	if ( is_string( $var ) && 'false' === strtolower( $var ) ) {
		return false;
	}

	return (bool) $var;
}

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更新日志

Version	description
4.0.0	Introduced.

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相关函数

Used By

• wp-includes/category-template.php: get_term_parents_list()
• wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::_toggle_sticky()
• wp-includes/media.php: wp_video_shortcode()
• wp-includes/media.php: wp_playlist_shortcode()
• wp-includes/media.php: wp_audio_shortcode()

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User Contributed Notes