WordPress wp_localize_script是做什么的? [英] what does WordPress wp_localize_script do?

问题描述

有人可以解释一下wp_localize_script()的作用吗? 即使我已经在WP Codex中阅读了它，但我一开始也不了解它的作用.

can someone explain me what wp_localize_script() do? I don't understand what it does in the first place even I have read it in the WP Codex.

推荐答案

通过打印出JavaScript对象，您可以在客户端中使用PHP数据. 摘自法典:

It lets you use PHP data in the client by printing out a JavaScript object. From the Codex:

本地化脚本，但前提是已经添加了脚本. 可以 也可用于在页面中包含任意Javascript数据.

Localizes a script, but only if script has already been added. Can also be used to include arbitrary Javascript data in a page.

您这样使用:

// Register script as per Codex instructions.
// It doesn't have to contain anything but the file must exist
wp_register_script('handle', get_template_directory_uri() .'/js/dummy.js');

// Send data to client
wp_localize_script('handle', 'Data', array(
  'url' => home_url(),
));

这将使用JavaScript打印对象:

This will print an object in JavaScript:

<script type='text/javascript'>
/* <![CDATA[ */
var Data = {"url":"http://..."};
/* ]]> */
</script>

现在在客户端中，您可以访问该数据:

Now in the client you can access that data:

console.log(Data.url);

构建插件时，这非常有用，因此您可以将客户端与服务器逻辑分开，而不必将JS和PHP都混合在同一个文件中.

It's very useful when you're building plugins so you can separate your client from your server logic instead of mixing JS and PHP all in the same file.

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