@阿伦:正如基思S所指出的Adam Brown\'s List of Hooks 是WordPress的hooks的实际资源。然而,这并不完美:
它不按调用钩子的时间顺序显示钩子,
它不提供调用的文件名或行号,它不提供传递的参数数量,它不是一个完整的列表,因为有些钩子可以动态调用,它不显示插件中的钩子因此,虽然Adam的列表是一个很好的资源,特别是对于理解历史上添加挂钩的时间来说,它并不像您能够在自己网站的任何给定页面上插入挂钩那样有用。我一直在考虑这个想法,所以你的问题促使我写了一篇plugin 已调用“Instrument Hooks for WordPress.“你可以找到full source below 屏幕截图,您也可以download it from gist here.
下面是仪器的屏幕截图:
您可以使用URL参数触发检测instrument=hooks
, 即。:
http://example.com?instrument=hooks
正如所承诺的,这里是源代码(或下载它here.):<?php
/*
Plugin Name: Instrument Hooks for WordPress
Description: Instruments Hooks for a Page. Outputs during the Shutdown Hook.
Version: 0.1
Author: Mike Schinkel
Author URI: http://mikeschinkel.com
*/
if ($_GET[\'instrument\']==\'hooks\') {
add_action(\'shutdown\',\'instrument_hooks\');
function instrument_hooks() {
global $wpdb;
$hooks = $wpdb->get_results("SELECT * FROM wp_hook_list ORDER BY first_call");
$html = array();
$html[] = \'<style>#instrumented-hook-list table,#instrumented-hook-list th,#instrumented-hook-list td {border:1px solid gray;padding:2px 5px;}</style>
<div align="center" id="instrumented-hook-list">
<table>
<tr>
<th>First Call</th>
<th>Hook Name</th>
<th>Hook Type</th>
<th>Arg Count</th>
<th>Called By</th>
<th>Line #</th>
<th>File Name</th>
</tr>\';
foreach($hooks as $hook) {
$html[] = "<tr>
<td>{$hook->first_call}</td>
<td>{$hook->hook_name}</td>
<td>{$hook->hook_type}</td>
<td>{$hook->arg_count}</td>
<td>{$hook->called_by}</td>
<td>{$hook->line_num}</td>
<td>{$hook->file_name}</td>
</tr>";
}
$html[] = \'</table></div>\';
echo implode("\\n",$html);
}
add_action(\'all\',\'record_hook_usage\');
function record_hook_usage($hook){
global $wpdb;
static $in_hook = false;
static $first_call = 1;
static $doc_root;
$callstack = debug_backtrace();
if (!$in_hook) {
$in_hook = true;
if ($first_call==1) {
$doc_root = $_SERVER[\'DOCUMENT_ROOT\'];
$results = $wpdb->get_results("SHOW TABLE STATUS LIKE \'wp_hook_list\'");
if (count($results)==1) {
$wpdb->query("TRUNCATE TABLE wp_hook_list");
} else {
$wpdb->query("CREATE TABLE wp_hook_list (
called_by varchar(96) NOT NULL,
hook_name varchar(96) NOT NULL,
hook_type varchar(15) NOT NULL,
first_call int(11) NOT NULL,
arg_count tinyint(4) NOT NULL,
file_name varchar(128) NOT NULL,
line_num smallint NOT NULL,
PRIMARY KEY (first_call,hook_name))"
);
}
}
$args = func_get_args();
$arg_count = count($args)-1;
$hook_type = str_replace(\'do_\',\'\',
str_replace(\'apply_filters\',\'filter\',
str_replace(\'_ref_array\',\'[]\',
$callstack[3][\'function\'])));
$file_name = str_replace($doc_root,\'\',$callstack[3][\'file\']);
$line_num = $callstack[3][\'line\'];
$called_by = $callstack[4][\'function\'];
$wpdb->query("INSERT wp_hook_list
(first_call,called_by,hook_name,hook_type,arg_count,file_name,line_num)
VALUES ($first_call,\'$called_by()\',\'$hook\',\'$hook_type\',$arg_count,\'$file_name\',$line_num)");
$first_call++;
$in_hook = false;
}
}
}