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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 |
|---|---|
| 331 | |
| 332 | /** |
| 333 | * Fires in the head tag on the Press This admin page. |
| 334 | * |
| 335 | * @since 3.7.0 |
| 336 | */ |
| 337 | do_action( 'admin_head-press-this.php' ); |
| 338 | |
| 339 | /** This action is documented in wp-admin/admin-header.php */ |
| 340 | do_action( 'admin_head' ); |
| 341 | ?> |
| 342 | <script type="text/javascript"> |
| 343 | var wpActiveEditor = 'content'; |
| 344 | |
| 345 | function insert_plain_editor(text) { |
| 346 | if ( typeof(QTags) != 'undefined' ) |
| 347 | QTags.insertContent(text); |
| 348 | } |
| 349 | function set_editor(text) { |