sanitize_title( string $title, string $fallback_title = ”, string $context = ‘save’ )

清理标题，或返回回退标题。
Sanitizes a title, or returns a fallback title.

目录锚点：#说明#参数#源码#笔记

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说明（Description）

具体来说，HTML和PHP标记被剥离。可以通过插件API添加进一步的操作。如果$title为空并且设置了$fallback_title，则将使用后者。

参数（Parameters）

源码（Source）

/**
 * Sanitizes a title, or returns a fallback title.
 *
 * Specifically, HTML and PHP tags are stripped. Further actions can be added
 * via the plugin API. If $title is empty and $fallback_title is set, the latter
 * will be used.
 *
 * @since 1.0.0
 *
 * @param string $title          The string to be sanitized.
 * @param string $fallback_title Optional. A title to use if $title is empty.
 * @param string $context        Optional. The operation for which the string is sanitized
 * @return string The sanitized string.
 */
function sanitize_title( $title, $fallback_title = '', $context = 'save' ) {
	$raw_title = $title;

	if ( 'save' == $context )
		$title = remove_accents($title);

	/**
	 * Filter a sanitized title string.
	 *
	 * @since 1.2.0
	 *
	 * @param string $title     Sanitized title.
	 * @param string $raw_title The title prior to sanitization.
	 * @param string $context   The context for which the title is being sanitized.
	 */
	$title = apply_filters( 'sanitize_title', $title, $raw_title, $context );

	if ( '' === $title || false === $title )
		$title = $fallback_title;

	return $title;
}

笔记（Notes）

WordPress标题