问题描述
如何在 PHP 中对函数进行排队?我需要一些像 Wordpress 的 add_action
系统一样工作的东西.我想要 enqueue 函数,然后在适当的时候运行.
How do I queue functions in PHP? I need something that works just like Wordpress's add_action
system. I want enqueue function which then runs when the time is right.
这似乎完美地工作.任何人有任何改进我的代码的提示吗?
This seems to work perfectly. Anyone got any tips to improve my code?
$enqueued_actions = array();
/**
* Enqueue an action to run at a later time.
* @param string $hook The hook name.
* @param obj $func The function object.
* @param integer $imp The level of importance from 0-9
*/
function add_action($hook, $func, $imp = 0) {
global $enqueued_actions;
$enqueued_actions[$hook][] = array('func' => $func, 'imp' => $imp);
}
/**
* Run the enqueued actions with the correct hook.
* @param string $hook Hook name.
*/
function run_action($hook) {
global $enqueued_actions;
$actions = $enqueued_actions[$hook];
for($i = 0; $i < 9; $i++) {
foreach($enqueued_actions[$hook] as $action) {
if($action['imp'] == $i) {
call_user_func($action['func']);
}
}
}
}
推荐答案
您走对了这里.不过,您可能希望使钩子持久化,即将钩子保存到数据库、CSV 文件、XML 对象模型等中.
You are on the right track here. You might want to make the hooks persistent, though, i.e. saving the hooks into a database, a CSV file, an XML object model, etc.
另外,你可能想引入一个函数来调用所有被锁定到某个钩子的动作,比如 call_actions($hook);
Also, you might want to introduce a function for the sake of calling all the actions that have been latched to a certain hook, something like call_actions($hook);
这篇关于入队一个函数(如 wordpress add_action)的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!