CodeIgniter中的regex_match form_validation生成：消息：preg_match（）：未找到结束定界符'/' [英] regex_match in CodeIgniter form_validation generates: Message: preg_match(): No ending delimiter '/' found

问题描述

我一直在寻找其他类似的帖子，问题似乎是一个非转义的斜线。但我逃避​​他们。

I've been looking in other similar posts and the problem seemed to be an unescaped slash. However I'm escaping them.

这是字符串的外观：

23/12/2012

这是我如何声明验证规则：

and this is how I'm declaring the validation rule:

regex_match[/^(0[1-9]|[12][0-9]|3[01])\/(0[1-9]|1[012])\/(19|20)[0-9]{2}$/]

结束分隔符存在，在日期中的斜杠之间用反斜杠转义。我也试过这个略有不同，但我得到相同的错误：

The ending delimiter is there, and the two inbetween slashes for the date are being escaped with a backslash. I've also tried this which is slightly different, but I get the same error:

regex_match[/^(0[1-9]|[12][0-9]|3[01])\/(0[1-9]|1[012])\/(19|20)\d\d$/]

错误在哪里？

strong> EDIT：

根据您的建议，我已尝试使用回调函数。这是声明，它位于正在执行表单验证的控制器类中：

Following your advice, I've tried using a callback function. This is the declaration, which is located within the controller class in which the form validation is being executed:

function mach_date($date) {
   /* DEBUG */ echo 'Here I am!'; exit; // execution should stop here displaying the echo
   return (bool)preg_match('/^(0[1-9]|[12][0-9]|3[01])\/(0[1-9]|1[012])\/(19|20)\d\d$/', $date);
}

application / config / form_validation.php ：

$config = array(
     // other validation groups.....,
     'articles' => array(
          // other validated fields.....,
          array(
                'field' => 'date_p',
                'label' => 'Publishing date',
                'rules' => 'callback_match_date'
          )
     )
); 

推荐答案

设置验证规则时， |所以在你的正则表达式中的|是导致验证规则分裂在那些，这是导致错误。请在此处讨论此问题。它似乎是一个限制或错误codeigniter。你可以通过运行一个有和没有|的正则表达式来检查它，看看管道的使用是否会导致错误。如果是这种情况，那么您可能必须通过其他方式regex验证，也许使用回调函数详细 page ，你的函数将使用regex来执行preg_match，当然需要在函数里面，然后返回true / false。

When you set the validation rules you separate them with a | so the |'s in your regex is causing the validation rule to split at those and that is causing the error. Discussion here on the issue. It seems it's a limitation or bug in codeigniter. You can test it out by running a regex with and without |'s and see if the usage of pipes will cause an error. If that is the case then you may have to validate by regex by other means, maybe use a callback function as detailed on this page where your function will do a preg_match using the regex which needs to be inside the function of course and then return true/false.

这篇关于CodeIgniter中的regex_match form_validation生成：消息：preg_match（）：未找到结束定界符'/'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IT屋！