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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 HTML class string. |
| 1216 | * |
| 1217 | * @since 2.8.0 |
| 1218 | * |
| 1219 | * @param string $sanitized The sanitized HTML class. |
| 1220 | * @param string $class HTML class before sanitization. |
| 1221 | * @param string $fallback The fallback string. |
| 1222 | */ |
| 1223 | return apply_filters( 'sanitize_html_class', $sanitized, $class, $fallback ); |
| 1224 | } |
| 1225 | |
| 1226 | /** |
| 1227 | * Converts a number of characters from a string. |
| 1228 | * |
| 1229 | * Metadata tags <<title>> and <<category>> are removed, <<br>> and <<hr>> are |
| 1230 | * converted into correct XHTML and Unicode characters are converted to the |
| 1231 | * valid range. |
| 1232 | * |