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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 |
|---|---|
| 1279 | } |
| 1280 | |
| 1281 | /** |
| 1282 | * Filter the wp_dropdown_users() HTML output. |
| 1283 | * |
| 1284 | * @since 2.3.0 |
| 1285 | * |
| 1286 | * @param string $output HTML output generated by wp_dropdown_users(). |
| 1287 | */ |
| 1288 | $output = apply_filters( 'wp_dropdown_users', $output ); |
| 1289 | |
| 1290 | if ( $echo ) |
| 1291 | echo $output; |
| 1292 | |
| 1293 | return $output; |
| 1294 | } |
| 1295 | |
| 1296 | /** |
| 1297 | * Sanitize user field based on context. |