[英]PHP - runkit redefine method
all my websites share a common starter, that deals with urls, file locations, etc.. There are 3 cases that need to be handled - is directory, file exists and file does not exist. 我所有的网站都共享一个通用的启动程序,该启动程序处理url,文件位置等。有3种情况需要处理-目录,文件存在和文件不存在。 Each application has unique code for each case.
每个应用程序在每种情况下都有唯一的代码。 I decided to tinker with runkit a bit and I am trying to unify the code.
我决定稍微修改一下runkit,然后尝试统一代码。 Each case will be handled by a function, that could be redefined via runkit.
每种情况将由一个函数处理,可以通过runkit重新定义。
Consider this code: 考虑以下代码:
class start {
function __construct() {
$this->options = array();
}
public function process() {
// some code here
$this->file_not_exists();
}
public function file_not_exists() {
$this->options['page'] = 222;
}
public function redefine($what, $code) {
runkit_method_redefine(get_class($this), $what, '', $code, RUNKIT_ACC_PUBLIC);
}
}
$start = new start();
$start->redefine('file_not_exists', '$this->options["page"] = 333;')
// page is now 333
This part works as intended. 这部分按预期工作。 But when I try to change the code so the redefined method calls user function it works.
但是,当我尝试更改代码以使重新定义的方法调用用户函数时,它可以工作。 But, for the love of god, I cant figure out how to pass the $this to the function.
但是,出于对上帝的爱,我不知道如何将$ this传递给函数。
Redefine method looks like this: 重新定义方法如下所示:
public function redefine($what, $code) {
runkit_method_redefine(get_class($this), $what, '', 'call_user_func('.$code.'(), '.$this.');', RUNKIT_ACC_PUBLIC)
}
This doesn't work, no matter what I try (call_user_func_array as well). 无论我如何尝试,这都行不通(以及call_user_func_array)。 I just cant figure it out.
我只是想不通。 For the record:
作为记录:
public function redefine($what, $code) {
my_user_function($this);
}
Does work. 确实有效。
Any help is appreciated. 任何帮助表示赞赏。
Note that this is just an experiment and I would like to know how to do this :) 请注意,这只是一个实验,我想知道如何做:)
Edit: I get: 编辑:我得到:
Catchable fatal error: Object of class starter could not be converted to string in blablallala\rewrite_starter2.php on line 153
The documentation on the call_user_func
function says that the first argument is ' callable '. 在
call_user_func
函数的文档中说,第一个参数是' callable '。 So to call the class method dynamically, you should pass the array($obj, 'func_name')
. 因此,要动态调用类方法,应传递
array($obj, 'func_name')
。
{... removed as not necessary ...} {...不必要移除...}
==== EDIT ===== ====编辑=====
[For the new problem, what you need is this] [对于新问题,您需要的是这个]
<?
class start {
function __construct() {
$this->options = array();
}
public function process() {
// some code here
$this->file_not_exists();
}
public function file_not_exists() {
$this->options['page'] = 222;
}
public function redefine($what, $code) {
runkit_method_redefine(get_class($this),
$what,
'',
'call_user_func(array($this,' .$code. '),$this);',
RUNKIT_ACC_PUBLIC);
}
public function my_func($someobj)
{
print_r($someobj);
}
}
$start = new start();
$start->redefine('file_not_exists', 'my_func');
$start->process();
?>
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