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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 |
|---|---|
| 1214 | /** |
| 1215 | * Filter a sanitized title string. |
| 1216 | * |
| 1217 | * @since 1.2.0 |
| 1218 | * |
| 1219 | * @param string $title Sanitized title. |
| 1220 | * @param string $raw_title The title prior to sanitization. |
| 1221 | * @param string $context The context for which the title is being sanitized. |
| 1222 | */ |
| 1223 | $title = apply_filters( 'sanitize_title', $title, $raw_title, $context ); |
| 1224 | |
| 1225 | if ( '' === $title || false === $title ) |
| 1226 | $title = $fallback_title; |
| 1227 | |
| 1228 | return $title; |
| 1229 | } |
| 1230 | |
| 1231 | /** |
| 1232 | * Sanitizes a title with the 'query' context. |