为WordPress主题添加文章字数和阅读时间

显示文章字数和阅读时间，这功能有什么用呢，我也不知道，不过有用户说人家有我们能不能也加一个，那就加呗，就有这篇为WordPress主题添加文章字数和阅读时间。文章源自知更鸟-https://zmingcx.com/main-inscription-number-and-reading-time.html

为WordPress主题添加文章字数和阅读时间

文章字数统计

// 字数统计
function zm_count_words ($text) {
	global $post;
	if ( '' == $text ) {
		$text = $post->post_content;
		if (mb_strlen($output, 'UTF-8') < mb_strlen($text, 'UTF-8')) $output .= '<span class="word-count">共' . mb_strlen(preg_replace('/\s/','',html_entity_decode(strip_tags($post->post_content))),'UTF-8') .'字</span>';
		return $output;
	}
}

代码添加到当前主题函数模板 functions.php 中。文章源自知更鸟-https://zmingcx.com/main-inscription-number-and-reading-time.html

文章阅读时间

// 阅读时间
function zm_get_reading_time($content) {
	$zm_format = '<span class="reading-time">阅读时间%min%分%sec%秒</span>';
	$zm_chars_per_minute = 300; // 估算1分种阅读字数

	$zm_format = str_replace('%num%', $zm_chars_per_minute, $zm_format);
	$words = mb_strlen(preg_replace('/\s/','',html_entity_decode(strip_tags($content))),'UTF-8');

	$minutes = floor($words / $zm_chars_per_minute);
	$seconds = floor($words % $zm_chars_per_minute / ($zm_chars_per_minute / 60));
	return str_replace('%sec%', $seconds, str_replace('%min%', $minutes, $zm_format));
}

function zm_reading_time() {
	echo zm_get_reading_time(get_the_content());
}

代码添加到当前主题函数模板 functions.php 中。文章源自知更鸟-https://zmingcx.com/main-inscription-number-and-reading-time.html

调用文章字数和阅读时间代码

显示文章字数代码：文章源自知更鸟-https://zmingcx.com/main-inscription-number-and-reading-time.html

<?php echo zm_count_words($text); ?>

显示阅读时间代码：文章源自知更鸟-https://zmingcx.com/main-inscription-number-and-reading-time.html

<?php zm_reading_time(); ?>

将上述调用代码加到当前主题正文模板的适当位置即可。文章源自知更鸟-https://zmingcx.com/main-inscription-number-and-reading-time.html

不过字数统计和阅读时间不是很精确，特别是阅读时间，更是扯淡，默认是按CCTV广播员语速定的。文章源自知更鸟-https://zmingcx.com/main-inscription-number-and-reading-time.html

写完这篇文章，发现网上有更简洁的代码，区别是上面的代码精确到秒，下面的代码只估算到分。文章源自知更鸟-https://zmingcx.com/main-inscription-number-and-reading-time.html

function count_words_read_time () {
	global $post;
	$text_num = mb_strlen(preg_replace('/\s/','',html_entity_decode(strip_tags($post->post_content))),'UTF-8');
	$read_time = ceil($text_num/300); // 修改数字300调整时间
	$output .= '本文共计' . $text_num . '个字，预计阅读时长' . $read_time  . '分钟。';
	return $output;
}

调用代码：文章源自知更鸟-https://zmingcx.com/main-inscription-number-and-reading-time.html

<?php echo count_words_read_time(); ?>

源代码不知出处。文章源自知更鸟-https://zmingcx.com/main-inscription-number-and-reading-time.html

很早的一篇相关文章：为WordPress添加文章字数统计 | 知更鸟文章源自知更鸟-https://zmingcx.com/main-inscription-number-and-reading-time.html

 文章源自知更鸟-https://zmingcx.com/main-inscription-number-and-reading-time.html

 文章源自知更鸟-https://zmingcx.com/main-inscription-number-and-reading-time.html