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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 |
|---|---|
| 1409 | /** |
| 1410 | * Filter a sanitized HTML class string. |
| 1411 | * |
| 1412 | * @since 2.8.0 |
| 1413 | * |
| 1414 | * @param string $sanitized The sanitized HTML class. |
| 1415 | * @param string $class HTML class before sanitization. |
| 1416 | * @param string $fallback The fallback string. |
| 1417 | */ |
| 1418 | return apply_filters( 'sanitize_html_class', $sanitized, $class, $fallback ); |
| 1419 | } |
| 1420 | |
| 1421 | /** |
| 1422 | * Converts a number of characters from a string. |
| 1423 | * |
| 1424 | * Metadata tags `<title>` and `<category>` are removed, `<br>` and `<hr>` are |
| 1425 | * converted into correct XHTML and Unicode characters are converted to the |
| 1426 | * valid range. |
| 1427 | * |