点击查看官方钩子基本说明
手动调用钩子
vim application/config/config.php
$config['enable_hooks'] = TRUE;
- 在 application/config/hooks.php 中配置自定义钩子
//下单成功之后调用, 生成合同号之后
$hook['after_order'][] = array(
'class' => 'SystemHook',
'function' => 'index',
'filename' => 'systemHook.php',
'filepath' => 'hooks/',
'params' => array()
);
- 钩子类 application/hooks/systemHook.php文件内容:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* 食街钩子文件controller - 钩子文件目的判断登录人是否拥有权限,否则返回主面板。
* @author: zhanghuan
* @date: 2014-04-23
*/
class SystemHook
{
function __construct()
{
}
/**
* 系统钩子进程,判读是否有权限,无模块权限跳至主面板,无登录权限跳至登陆页
*/
public function index($params)
{
$a = $this->CI->uri->segment(1);
$a = $this->CI->uri->segment(2);
$a = $this->CI->uri->segment(3);
echo "<script>alert('调用钩子函数成功!;')</script>";
var_dump($a);
exit;
}
}
- 在需要调用钩子的地方调用, 在controller中调用
$this->CI->hooks->_call_hook_new('after_order',array('contractNum'=>151211111,'ljyunId'=>512));
$this->_hooks_call_hook_new('after_order',array('contractNum'=>151211111,'ljyunId'=>512));
- 注意, 以上在调用的时候,
_call_hook_new()方法是我自己定义的, 在CI中并不存在该方法, CI中使用的是 _call_hook() 方法, 并没有第二个参数的接收, 钩子调用函数的文件内容如下: /system/core/Hooks.php, 注意: 文件中含有 liangxifeng 标注的是我自己修改的.
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
* An open source application development framework for PHP 5.1.6 or newer
*
* @package CodeIgniter
* @author ExpressionEngine Dev Team
* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
* @license http://codeigniter.com/user_guide/license.html
* @link http://codeigniter.com
* @since Version 1.0
* @filesource
*/
// ------------------------------------------------------------------------
/**
* CodeIgniter Hooks Class
*
* Provides a mechanism to extend the base system without hacking.
*
* @package CodeIgniter
* @subpackage Libraries
* @category Libraries
* @author ExpressionEngine Dev Team
* @link http://codeigniter.com/user_guide/libraries/encryption.html
*/
class CI_Hooks {
/**
* Determines wether hooks are enabled
*
* @var bool
*/
var $enabled = FALSE;
/**
* List of all hooks set in config/hooks.php
*
* @var array
*/
var $hooks = array();
/**
* Determines wether hook is in progress, used to prevent infinte loops
*
* @var bool
*/
var $in_progress = FALSE;
/**
* Constructor
*
*/
function __construct()
{
$this->_initialize();
log_message('debug', "Hooks Class Initialized");
}
// --------------------------------------------------------------------
/**
* Initialize the Hooks Preferences
*
* @access private
* @return void
*/
function _initialize()
{
$CFG =& load_class('Config', 'core');
// If hooks are not enabled in the config file
// there is nothing else to do
if ($CFG->item('enable_hooks') == FALSE)
{
return;
}
// Grab the "hooks" definition file.
// If there are no hooks, we're done.
if (defined('ENVIRONMENT') AND is_file(APPPATH.'config/'.ENVIRONMENT.'/hooks.php'))
{
include(APPPATH.'config/'.ENVIRONMENT.'/hooks.php');
}
elseif (is_file(APPPATH.'config/hooks.php'))
{
include(APPPATH.'config/hooks.php');
}
if ( ! isset($hook) OR ! is_array($hook))
{
return;
}
$this->hooks =& $hook;
$this->enabled = TRUE;
}
/**
* Call Hook liangxifeng 自定义钩子调用 自己新增$params参数,目的为了调用方可以传递参数
* 2019-03-29
*
* Calls a particular hook
*
* @access private
* @param string the hook name
* @return mixed
*/
function _call_hook_new($which = '',$params=array())
{
if ( ! $this->enabled OR ! isset($this->hooks[$which]))
{
return FALSE;
}
if (isset($this->hooks[$which][0]) AND is_array($this->hooks[$which][0]))
{
foreach ($this->hooks[$which] as $val)
{
$this->_run_hook($val,$params);
}
}
else
{
$this->_run_hook($this->hooks[$which],$params);
}
return TRUE;
}
/**
* Call Hook
*
* Calls a particular hook
*
* @access private
* @param string the hook name
* @return mixed
*/
function _call_hook($which = '')
{
if ( ! $this->enabled OR ! isset($this->hooks[$which]))
{
return FALSE;
}
if (isset($this->hooks[$which][0]) AND is_array($this->hooks[$which][0]))
{
foreach ($this->hooks[$which] as $val)
{
$this->_run_hook($val);
}
}
else
{
$this->_run_hook($this->hooks[$which]);
}
return TRUE;
}
// --------------------------------------------------------------------
/**
* Run Hook
* liangxifeng 新增$customParams参数的接收, 目的是接收目标调用者传递过来的动态参数
* 2019-03-29
*
* Runs a particular hook
*
* @access private
* @param array the hook details
* @return bool
*/
function _run_hook($data,$customParams=array())
{
if ( ! is_array($data))
{
return FALSE;
}
// -----------------------------------
// Safety - Prevents run-away loops
// -----------------------------------
// If the script being called happens to have the same
// hook call within it a loop can happen
if ($this->in_progress == TRUE)
{
return;
}
// -----------------------------------
// Set file path
// -----------------------------------
if ( ! isset($data['filepath']) OR ! isset($data['filename']))
{
return FALSE;
}
$filepath = APPPATH.$data['filepath'].'/'.$data['filename'];
if ( ! file_exists($filepath))
{
return FALSE;
}
// -----------------------------------
// Set class/function name
// -----------------------------------
$class = FALSE;
$function = FALSE;
$params = '';
if (isset($data['class']) AND $data['class'] != '')
{
$class = $data['class'];
}
if (isset($data['function']))
{
$function = $data['function'];
}
if (isset($data['params']))
{
$params = $data['params'];
}
//liangxifeng 如果$customParams自定义参数存在,则覆盖hooks配置中的参数
//2019-03-29
if(isset($customParams) && is_array($customParams) && !empty($customParams))
{
$params = $customParams;
}
//2019-03-29
if ($class === FALSE AND $function === FALSE)
{
return FALSE;
}
// -----------------------------------
// Set the in_progress flag
// -----------------------------------
$this->in_progress = TRUE;
// -----------------------------------
// Call the requested class and/or function
// -----------------------------------
if ($class !== FALSE)
{
if ( ! class_exists($class))
{
require($filepath);
}
$HOOK = new $class;
$HOOK->$function($params);
}
else
{
if ( ! function_exists($function))
{
require($filepath);
}
$function($params);
}
$this->in_progress = FALSE;
return TRUE;
}
}
// END CI_Hooks class
/* End of file Hooks.php */
/* Location: ./system/core/Hooks.php */
