WordPress开发中用于标题显示的相关函数使用解析

 <?php single_cat_title($prefix,$display); ?>

 <?php
printf( __( 'Category Archives: %s', 'twentyeleven' ), '<span>' . single_cat_title( '', false ) . '</span>' );
?>

<?php the_title( $before, $after, $echo ); ?>

<?php the_title( ‘=>', ‘<=' ); ?>

‘=>get_the_title 和 the_title<='

<?php $myTitle = get_the_title($ID); ?>

<?php
 $myTitle = get_the_title($ID); 
 echo $mytitle.'【标题演示】';
?>

<?php
/
  Display or retrieve the current post title with optional content.
 
  @since 0.71
 
  @param string $before Optional. Content to prepend to the title.
  @param string $after Optional. Content to append to the title.
  @param bool $echo Optional, default to true.Whether to display or return.
  @return null|string Null on no title. String if $echo parameter is false.
 /
function the_title($before = '', $after = '', $echo = true) {
 $title = get_the_title();
 
 if ( strlen($title) == 0 )
 return;
 
 $title = $before . $title . $after;
 
 if ( $echo )
 echo $title;
 else
 return $title;
}
?>

<?php
/
  Retrieve post title.
 
  If the post is protected and the visitor is not an admin, then "Protected"
  will be displayed before the post title. If the post is private, then
  "Private" will be located before the post title.
 
  @since 0.71
 
  @param int $id Optional. Post ID.
  @return string
 /
function get_the_title( $id = 0 ) {
 $post = &get_post($id);
 
 $title = isset($post->post_title) ? $post->post_title : '';
 $id = isset($post->ID) ? $post->ID : (int) $id;
 
 if ( !is_admin() ) {
 if ( !empty($post->post_password) ) {
  $protected_title_format = apply_filters('protected_title_format', __('Protected: %s'));
  $title = sprintf($protected_title_format, $title);
 } else if ( isset($post->post_status) && 'private' == $post->post_status ) {
  $private_title_format = apply_filters('private_title_format', __('Private: %s'));
  $title = sprintf($private_title_format, $title);
 }
 }
 return apply_filters( 'the_title', $title, $id );
}
?>