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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 |
|---|---|
| 187 | * @param string $text Placeholder text. Default 'Type / to choose a block'. |
| 188 | * @param WP_Post $post Post object. |
| 189 | */ |
| 190 | $body_placeholder = apply_filters( 'write_your_story', __( 'Type / to choose a block' ), $post ); |
| 191 | |
| 192 | $editor_settings = array( |
| 193 | 'availableTemplates' => $available_templates, |
| 194 | 'disablePostFormats' => ! current_theme_supports( 'post-formats' ), |
| 195 | /** This filter is documented in wp-admin/edit-form-advanced.php */ |
| 196 | 'titlePlaceholder' => apply_filters( 'enter_title_here', __( 'Add title' ), $post ), |
| 197 | 'bodyPlaceholder' => $body_placeholder, |
| 198 | 'autosaveInterval' => AUTOSAVE_INTERVAL, |
| 199 | 'richEditingEnabled' => user_can_richedit(), |
| 200 | 'postLock' => $lock_details, |
| 201 | 'postLockUtils' => array( |
| 202 | 'nonce' => wp_create_nonce( 'lock-post_' . $post->ID ), |
| 203 | 'unlockNonce' => wp_create_nonce( 'update-post_' . $post->ID ), |
| 204 | 'ajaxUrl' => admin_url( 'admin-ajax.php' ), |
| 205 | ), |