FILTER_VALIDATE vs Preg_match。哪一个使用？ [英] FILTER_VALIDATE vs Preg_match. Which one to use?

问题描述

为了验证输入日期，无论是从表单URL还是从表单中，您通常使用哪种技术？ 我一直在寻找 PHP过滤器，但是我很少看到它们在任何代码中。

  $ numbers =/ ^ [0-9] + $ / d; 
 
 if（preg_match（$ numbers，$ var））{
 echois number; 
 
 
 
 $ b 
而不是：
 
  $ b 
  if（！filter_var（$ var，FILTER_VALIDATE_INT））
 echois number; 
 
 $ / code $ / pre 
 
 
使用这个或另一个有什么优势吗？ 
谢谢！
解决方案
 PHP自php 5.2以来引入了多种类型的变量验证的filer_功能。使用 filter_var 是个好习惯 filter_input 满足您的需求。 
 
 
 
除了更安全外，还可以节省大量开发时间。
To validate input date, both form URL or from a form, which technique do you usually use?

I have been looking at PHP Filters but i have rarely see them on any code.

I have usually seen the use of preg_mach, for example:
$numbers = "/^[0-9]+$/D";

if (preg_match($numbers, $var)){
    echo "is number";
}
Instead of:
if(!filter_var($var, FILTER_VALIDATE_INT))
    echo "is number";
}
Is there any advantage using one or another?
Thanks!
解决方案
Php introduced the filer_ functionality for a wide range of types of variable validation since php 5.2. It's good practice to use the filter_var || filter_input for your needs. 

Besides the fact that it's safer it will also save you lots of development time cracking your head over regular expressions.

                        
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