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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 |
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239 | XSL; |
240 |
|
241 | /** |
242 | * Filters the content of the sitemap index stylesheet. |
243 | * |
244 | * @since 5.5.0 |
245 | * |
246 | * @param string $xsl_content Full content for the XML stylesheet. |
247 | */ |
248 | return apply_filters( 'wp_sitemaps_stylesheet_index_content', $xsl_content ); |
249 | } |
250 |
|
251 | /** |
252 | * Gets the CSS to be included in sitemap XSL stylesheets. |
253 | * |
254 | * @since 5.5.0 |
255 | * |
256 | * @return string The CSS. |
257 | */ |