PHP 显示特定的WordPress帖子/页面

Posted 2021-05-15

<?php

/**
* put the following into functions.php
**/
function new_wp_trim_excerpt($text) {
	$raw_excerpt = $text;
	if ( '' == $text ) {
		$text = get_the_content('');

		$text = strip_shortcodes( $text );

		$text = apply_filters('the_content', $text);
		$text = str_replace(']]>', ']]>', $text);
		$text = strip_tags($text, '<a>');
		$excerpt_length = apply_filters('excerpt_length', 55);

		$excerpt_more = apply_filters('excerpt_more', ' ' . '[...]');
		$words = preg_split('/(<a.*?a>)|\n|\r|\t|\s/', $text, $excerpt_length + 1, PREG_SPLIT_NO_EMPTY|PREG_SPLIT_DELIM_CAPTURE );
		if ( count($words) > $excerpt_length ) {
			array_pop($words);
			$text = implode(' ', $words);
			$text = $text . $excerpt_more;
		} else {
			$text = implode(' ', $words);
		}
	}
	return apply_filters('new_wp_trim_excerpt', $text, $raw_excerpt);

}
remove_filter('get_the_excerpt', 'wp_trim_excerpt');
add_filter('get_the_excerpt', 'new_wp_trim_excerpt');

function my_excerpt($excerpt = '', $excerpt_length = 50, $readmore = "Read more»", $tags = '<a>', $permalink = null) {
	global $post;
	$excerpt = strip_tags($excerpt, $tags);
	$excerpt = strip_shortcodes($excerpt);
	$string_check = explode(' ', $excerpt);
	if ($permalink === null) {
		$permalink = get_permalink();
	}

	if (count($string_check, COUNT_RECURSIVE) > $excerpt_length) {
		$new_excerpt_words = explode(' ', $excerpt, $excerpt_length+1);
		array_pop($new_excerpt_words);
		$excerpt_text = implode(' ', $new_excerpt_words);
		$temp_content = strip_tags($excerpt_text, $tags);
		$short_content = preg_replace('|\[(.+?)\](.+?\[/\\1\])?|s','',$temp_content);
		$short_content .= '... <a href="' . $permalink . '">' . $readmore . '</a>';
		return $short_content;
	} else {
		return $excerpt . ' <a href="' . $permalink . '">' . $readmore . '</a>';
	}
}



?>





<?php

/**
* put the following in your template and change the post id
**/

?>

<?php $my_post_id = 495; /* change this to match the post you are trying to retreive */ ?>
<?php $my_post = get_post($my_post_id); ?>

<h2><?php echo $my_post->post_title; ?></h2>

<?php $my_content = str_replace(']]>', ']]>', apply_filters('the_content', $my_post->post_content)); ?>

<!-- this will output the content in excerpt format. change the '80' to whatever length you want. -->
<p><?php echo my_excerpt($my_content, 80, 'Read more»', '<a>', get_permalink($my_post_id) ); ?></p>

<!-- this will output all of the content from that post/page -->
<?php echo $my_content; ?>