是否有可能计算每个特定类别的员额百分比？我想做一个条形图来直观显示这些类别中的帖子数量。
我想我们需要的是帖子的总量，每个类别中的帖子数量，然后是一个PHP函数，该函数使用这些值计算百分比，并对其应用一个变量，我需要在构建条形图时使用该变量。
我对扩展PHP不是很熟悉，所以如果有人能告诉我正确的方向，我将不胜感激
按类别计算帖子百分比
2 个回复
最合适的回答,由SO网友:deflime 整理而成
通过一点CSS，这将创建一个类别列表，如下所示：
基本CSS：
<style>
.bar { height:4px; background:blue; }
</style>
<?php
// To customize visit http://codex.wordpress.org/Function_Reference/get_categories
$categories = get_categories();
// Get total posts, this allows for posts to have more than one category and accommodates for custom $args in get_categories($args)
$total_posts = 0;
foreach ($categories as $category) {
$total_posts += $category->count;
}
// Loop through the categories
$total_check = 0;
foreach ($categories as $category) {
// Get the % and round to 2 decimal places
$percentage = round( (($category->count / $total_posts)*100), 2 );
// Just checking to see if they will add up to 100 at the end
$total_check += $percentage;
echo \'
<div class="category-wrap">
<h3>\'.$category->cat_name.\'</h3>
<div class="bar" style="width:\'.$percentage.\'%;"></div>
</div><!-- .category-wrap -->
\';
}
// Just checking to see that they all add up to 100, delete or comment out afterward
echo $total_check;
?>
SO网友:Eric Allen
根据您想在何处使用它，您可以找到不同的方法来处理它，但我提供了一个简单函数的代码，您可以将其放入函数中。php并调用主题中的任意位置以获取百分比数组。
此方法结合使用wp_count_posts() 和get_categories().
当您将小数转换为百分比时，可能需要进行一些舍入。我省略了这一点，以便您可以决定如何处理这些数字。
//function to return array of percentage of posts in each category
function wpse_154771() {
//get # of posts of each status
$total = wp_count_posts();
//# of published posts
$total_posts = $total->publish;
$args = array();
//if you want to include categories with no posts uncomment the line below
//$args[\'hide_empty\'] = 0;
//get all categories
$categories = get_categories($args);
//array for storing category percentage
$percent_array = array();
//iterate through categories and get percentage of posts
foreach($categories as $cat) {
//get the decimal representation of this percentage, you can convert as needed
$cat_percentage = $cat->count / $total_posts;
//store percentage in array with category slug as array index
$percent_array[$cat->slug] = $cat_percentage;
}
//return our array of percentages
return $percent_array;
}
$percentages = wpse_154771();然后可以遍历该数组，并对其执行所需的操作。生成条形图的方法有很多，因此此答案侧重于问题的标题，并且与所需的图形方法无关。
结束