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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 |
---|---|
34 | <?php } ?> |
35 | </div> |
36 |
|
37 | <div id="preview-action"> |
38 | <?php |
39 | if ( 'publish' == $post->post_status ) { |
40 | $preview_link = esc_url(get_permalink($post->ID)); |
41 | $preview_button = __('Preview Changes'); |
42 | } else { |
43 | $preview_link = esc_url(apply_filters('preview_post_link', add_query_arg('preview', 'true', get_permalink($post->ID)))); |
44 | $preview_button = __('Preview'); |
45 | } |
46 | ?> |
47 | <a class="preview button" href="<?php echo $preview_link; ?>" target="wp-preview" id="post-preview" tabindex="4"><?php echo $preview_button; ?></a> |
48 | <input type="hidden" name="wp-preview" id="wp-preview" value="" /> |
49 | </div> |
50 |
|
51 | <div class="clear"></div> |
52 | </div><?php // /minor-publishing-actions ?> |