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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 1904 | /** |
| 1905 | * Filters a sanitized title string. |
| 1906 | * |
| 1907 | * @since 1.2.0 |
| 1908 | * |
| 1909 | * @param string $title Sanitized title. |
| 1910 | * @param string $raw_title The title prior to sanitization. |
| 1911 | * @param string $context The context for which the title is being sanitized. |
| 1912 | */ |
| 1913 | $title = apply_filters( 'sanitize_title', $title, $raw_title, $context ); |
| 1914 | |
| 1915 | if ( '' === $title || false === $title ) |
| 1916 | $title = $fallback_title; |
| 1917 | |
| 1918 | return $title; |
| 1919 | } |
| 1920 | |
| 1921 | /** |
| 1922 | * Sanitizes a title with the 'query' context. |