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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 |
---|---|
472 | <?php |
473 | /** |
474 | * Filter the title field placeholder text. |
475 | * |
476 | * @since 3.1.0 |
477 | * |
478 | * @param string $text Placeholder text. Default 'Enter title here'. |
479 | * @param WP_Post $post Post object. |
480 | */ |
481 | $title_placeholder = apply_filters( 'enter_title_here', __( 'Enter title here' ), $post ); |
482 | ?> |
483 | <label class="screen-reader-text" id="title-prompt-text" for="title"><?php echo $title_placeholder; ?></label> |
484 | <input type="text" name="post_title" size="30" value="<?php echo esc_attr( htmlspecialchars( $post->post_title ) ); ?>" id="title" spellcheck="true" autocomplete="off" /> |
485 | </div> |
486 | <?php |
487 | /** |
488 | * Fires before the permalink field in the edit form. |
489 | * |
490 | * @since 4.1.0 |