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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 |
|---|---|
| 378 | <?php |
| 379 | /** |
| 380 | * Fires inside the post editor <form> tag. |
| 381 | * |
| 382 | * @since 3.0.0 |
| 383 | * |
| 384 | * @param WP_Post $post Post object. |
| 385 | */ |
| 386 | ?> |
| 387 | <form name="post" action="post.php" method="post" id="post"<?php do_action( 'post_edit_form_tag', $post ); ?>> |
| 388 | <?php wp_nonce_field($nonce_action); ?> |
| 389 | <input type="hidden" id="user-id" name="user_ID" value="<?php echo (int) $user_ID ?>" /> |
| 390 | <input type="hidden" id="hiddenaction" name="action" value="<?php echo esc_attr( $form_action ) ?>" /> |
| 391 | <input type="hidden" id="originalaction" name="originalaction" value="<?php echo esc_attr( $form_action ) ?>" /> |
| 392 | <input type="hidden" id="post_author" name="post_author" value="<?php echo esc_attr( $post->post_author ); ?>" /> |
| 393 | <input type="hidden" id="post_type" name="post_type" value="<?php echo esc_attr( $post_type ) ?>" /> |
| 394 | <input type="hidden" id="original_post_status" name="original_post_status" value="<?php echo esc_attr( $post->post_status) ?>" /> |
| 395 | <input type="hidden" id="referredby" name="referredby" value="<?php echo esc_url(wp_get_referer()); ?>" /> |
| 396 | <?php if ( ! empty( $active_post_lock ) ) { ?> |