thinkphp 5.0 Custom Validation Rule Usage

When we use thinkphp 5.0, we often have to customize verification rules, which is different from the previous versions of tp. Today, this site brings everyone 1 to learn how to use verification rules under 5.0.

There are two ways to define $rule (validation rule) in thinkphp5

Mode 1:

$rule = [
  //  You cannot define an empty validation here   Such as  'name' => '', Will lead to the appearance of result Undefined error 
  'name' => 'require|max:25',
  'age'  => 'number|between:1,120',
];

Mode 2:

$rule = [
  'name' => ['require','max'=>25],
  'age'  => ['number','between'=>'1,120'],
];

If Mode 1 customizes validation rules, you can write

$rule = [
  'name' => 'require|max:25|checkName:',
  'age'  => 'number|between:1,120',
];
protected function checkNmae($value)
{
  $value  Yes name Value , You can validate here , Such as regular verification 
}

If it is Mode 2, it is written as follows

$rule = [
  'name' => ['require','max'=>25,'checkName'=>'$rule Parameter '],
  'age'  => ['number','between'=>'1,120'],
  'email' => ['require', 'checkUserEmail'=>'qq.com'],
];
protected function checkName($value, $rule)
{
  $vaule  Yes name Value ,$rule For the above $rule Parameter 
}
protected function checkUserEmail($value,$rule)
{
  $res = preg_match('/^\w+([-+.]\w+)*@'.$rule.'$/', $value);
  if (!$res) {
    return ' Mailbox can only be '.$rule.' Domain name ';
  } else {
    return true;
  }
}

These are the two methods we have given the code, if you have a better method or code can be discussed in the message area below.