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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 |
---|---|
1238 | * Filter the sample permalink HTML markup. |
1239 | * |
1240 | * @since 2.9.0 |
1241 | * |
1242 | * @param string $return Sample permalink HTML markup. |
1243 | * @param int|WP_Post $id Post object or ID. |
1244 | * @param string $new_title New sample permalink title. |
1245 | * @param string $new_slug New sample permalink slug. |
1246 | */ |
1247 | $return = apply_filters( 'get_sample_permalink_html', $return, $id, $new_title, $new_slug ); |
1248 |
|
1249 | return $return; |
1250 | } |
1251 |
|
1252 | /** |
1253 | * Output HTML for the post thumbnail meta-box. |
1254 | * |
1255 | * @since 2.9.0 |
1256 | * |