Wordpress高级自定义字段插件未正确提供输出

Question

I have 2 similar lines of code, the first one works OK but the second is not.

This one works ok and displays the title within the <li></li>

$output .= '<li>' . the_title() . '</li>';

This one returns an empty <li></li> and displays the result on top of the page

$output .= '<li>' . the_field('price') . '</li>';

the_field('price') is a custom wordpress field which i've created by using "Advanced Custom Fields" plugin. Here is the documentation of the plugin on how to output the data http://www.advancedcustomfields.com/resources/field-types/select/

Answer 1

In your case, perhaps its better to use get_field() instead of the_field() .

Here is the difference:

• get_field() will give you the value.
• the_field() will print the result directly but return NULL.