blocks|key|1212184|text|您可以通过为规则创建函数来设置自定义验证错误消息。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1212185|这段代码是未经测试的。|1212186|public+function+payment_amount($str)
{
++++if+(preg_match('[/%5E\d{0,4}(\.\d{1,2})?$/]',+$str)
++++{
++++++++$this->form_validation->set_message('payment_amount',+'The+%25s+field+has+an+error');
++++++++return+FALSE;
++++}
++++else
++++{
++++++++return+TRUE;
++++}
}|code-block|syntax|javascript|1212187|我们CI的回调如下：|1212188|$this->form_validation->set_rules('payment_amount',+'Payment+Amount',+'callback_payment_amount')|1212189|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

You can set a custom validation error message by creating a function for the rule.

This code is untested.

<pre><code>public function payment_amount($str)
{
 if (preg_match('[/^\d{0,4}(\.\d{1,2})?$/]', $str)
 {
 $this-&gt;form_validation-&gt;set_message('payment_amount', 'The %s field has an error');
 return FALSE;
 }
 else
 {
 return TRUE;
 }
}
</code></pre>

Us CI's callback as follows:

<pre><code>$this-&gt;form_validation-&gt;set_rules('payment_amount', 'Payment Amount', 'callback_payment_amount')
</code></pre>

blocks|key|1212219|text|创建MY_Form_validation.php并将您的代码放入。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1212220|使用文档(http://ellislab.com/codeigniter/user-guide/general/creating_libraries.html)|offset|length|1212221|扩展本地库|1212222|如果你所需要做的就是向现有的库中添加一些功能--也许添加一两个函数--那么用你的版本替换整个库就太夸张了。在这种情况下，更好的方法是简单地扩展类。扩展一个类几乎等同于用几个异常替换一个类：|1212223|类声明必须扩展父类。您的新类名和文件名必须以MY_作为前缀(此项是可配置的。见下文。)。例如，要扩展原生电子邮件类，您将创建一个名为application/libraries/MY_Email.php的文件，并使用以下命令声明您的类：|1212224|class+MY_Email+extends+CI_Email+{

}|code-block|syntax|javascript|1212225|注意:如果您需要在类中使用构造函数，请确保扩展了父构造函数：|1212226|class+MY_Email+extends+CI_Email+{

++public+function+__construct()
++{
++++++parent::__construct();
++}
}|1212227|entityMap|0|LINK|mutability|MUTABLE|url|http://ellislab.com/codeigniter/user-guide/general/creating_libraries.html^0|0|5|22|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|13|8|@]|9|@$D|14|E|15|1|16]]|A|$]]|$1|F|3|G|5|6|7|17|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|18|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|19|8|@]|9|@]|A|$]]|$1|L|3|M|5|N|7|1A|8|@]|9|@]|A|$O|P]]|$1|Q|3|R|5|6|7|1B|8|@]|9|@]|A|$]]|$1|S|3|T|5|N|7|1C|8|@]|9|@]|A|$O|P]]|$1|U|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]]|V|$W|$5|X|Y|Z|A|$10|11]]]]

Create MY_Form_validation.php &amp; put your code into.

Use the documentation (<a href="http://ellislab.com/codeigniter/user-guide/general/creating_libraries.html" rel="nofollow">http://ellislab.com/codeigniter/user-guide/general/creating_libraries.html</a>)

Extending Native Libraries

If all you need to do is add some functionality to an existing library - perhaps add a function or two - then it's overkill to replace the entire library with your version. In this case it's better to simply extend the class. Extending a class is nearly identical to replacing a class with a couple exceptions:

The class declaration must extend the parent class.
Your new class name and filename must be prefixed with MY_ (this item is configurable. See below.).
For example, to extend the native Email class you'll create a file named application/libraries/MY_Email.php, and declare your class with:

<pre><code>class MY_Email extends CI_Email {

}
</code></pre>

Note: If you need to use a constructor in your class make sure you extend the parent constructor:

<pre><code>class MY_Email extends CI_Email {

 public function __construct()
 {
 parent::__construct();
 }
}
</code></pre>

I am trying to set a validation message for a set_rule....is this possible?

I tried this

<pre><code>$this-&gt;form_validation-&gt;set_rules('payment_amount', 'Payment Amount', 'regex_match[/^\d{0,4}(\.\d{1,2})?$/]');
$this-&gt;form_validation-&gt;set_message('payment_amount', 'This is a test');
</code></pre>

and my message did not change.

Any ideas?

Set validation message

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在尝试为set_rule....is设置验证消息这是可能的吗？我试过了$this->form_validation->set_rules('payment_amount', 'Payment Amount', 'regex_match[/^\d{0,4}(\.\d{1,2})?$/]');$this->form_v...

问设置验证消息
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