CakePHP? ?? ????? ??????? ???? ? ???? ?? ?? ??? ?? ??? ????? ??? ??? ??? ?????. ??? ??? CakePHP?? ???? ?? ? ?????. ??? ??? ???? ?? ??? ?? ??? ??? ??? ??? ??? ??? ? ????. CakePHP??? ??? ?? ???? ??? ??? ?? ?? ???? ???? ???. ???? ?? ???? ???? ???. ??? ???? ??? ?? ?? ???? ?????. ?? ??? ?? ??? ?? ??? ??? ?? ????.

?? ????? ?? ?? ??

? ??, ????? ??, ????? ??? ?

CakePHP ??? ??? ??????

?? ??? ??? ??? ??????? ???? ??? ?? ????? ????? ?? ???????? ??? ?????. ?? ??, ???? ??? ? 8??? ????? ??? ??? ???? ???? ???. ?? ??? ????? ?? ??? ?? ??????.

?????? ??? ??? ????. ? ???? ??? ?? ??? ??? ?? ?????. ????? ??? ?? save() ??? ???? ?? ?? ?????? ?? ?? ??? ???? ??? ?? ??? ???

CakePHP ?? ??

?? ??? ?? CakePHP? ??? ?? ??? ???????.

1. ??

??? ?? ??? ? ?? ??? ?????. ?? ??? ????? ?? ?? ??? ?? ??? ? ?? ???? ???? ? ?? ??? ?????.

??

Add(string $specified field, array|string $specified name,
array|Cake\Validation\ValidationRule $required rule [])

??

? ????? ??? ????? ?? add ???? ?????. ? ???? ??? ??? ???? ?? ??? ??? ???? ? ?????. ??? ?? ??? ?? ? ?? ?? ?? ??? ???? ? ???? $this? ?????.

2. ?? ??

? ??? ???? ? ??? ??? ? ????

??

allowEmpty(string $specified field, boolean|string|callable $whentrue, string|null msgull)

??

? ????? ??? ????? ?? add ???? ?????. ? ???? ??? ??? ???? ?? ??? ??? ???? ? ?????. ?? ????? ??? ?? ??? ???? ? ?????. ??? ?? ?? ???? ??? ??? ? true ?? false ???? ???? ??? ?? ????. ???? ??? ??? ???? ? ???? $this? ?????.

3. ???

? ??? ???? ?? ??? ?? ??? ??? ??? ??? ? ????.

??

alphanumeric (string $specified field, string|null $Msgnull, string|callable|null $whennull)

??

? ????? ??? ????? ?? ??? ??? ?????. ? ???? ??? ??? ???? ?? ??? ??? ???? ? ?????. ??? ?? ??? ?? ??? ?????. ?? ??? ????? ?? ?? ??? ?? ??? ? ?? ???? ???? ? ?? ??? ???? $this? ?????.

4. ????

? ??? ???? ?? ??? ?? ??? ??? ?? ?? ??? ??? ? ????.

??

creditCard(string $specified field , string $type'all', string|null $msgnull, string|callable|null $whennull)

??

? ????? ???? ??? ???? ??? ????? ??? ??????. ??? ???? ?? ?????.

???? ?? ??? ?????. ???? '??'???. ?? '?????', '??', '???' ? ??? ?? ?? ??? ??? ? ????.

??? ???? ? ??? ?? ???. ?? ??? ???? ?? $this? ???? ?? '???' ?? '????' ?? ??? ??? ?? ??????.

5. ???

? ??? ???? ?? ??? ?? ??? ??? ?? ??? ??? ? ????.

??

Email(string $specified field , boolean $checkMXfalse, string|null $msgnull, string|callable|null, $whennull)

??

? ??? ???? ??? ??? ?? ??? ??? ? ????. ??? ???? ?? ????? ???.

MX ??? ?? ??? ????

??? ????? ?? ?? ???.

?? ??? ???? ?? ?? '???' ?? '????' ?? ??? ?? ???? ?????.

6. ????

? ??? ???? ??? ??? ??? ??? ??? ? ????.

??

maxLength(string $specified field, integer $max, string|null $msgnull, string|callable|null $whennull)

??

In the above syntax, we use the maxLength method with different parameters. Here the specified field is used to define the field to which we want to apply the rule, max is used to define the maximum length of string, msgnull is used to show an error message when the rule fails.

7. minLength

By using this method, we can apply string validation to the field.

Syntax

minLength(string $specified field, integer $min, string|null $msgnull, string|callable|null $whennull)

Explanation

In the above syntax, we use the minLength method with different parameters. Here the specified field is used to define the field which we want to apply the rule, min is used to define the minimum length of string, msgnull is used to show an error message when the rule fails.

How to Create CakePHP Validation?

Now let’s see how we can create CakePHP validation with examples as follows.?First, we need to make the changes in routes.php file as follows.

<?php
use Cake\Http\Middleware\CsrfProtectionMiddleware;
use Cake\Routing\Route\DashedRoute;
use Cake\Routing\RouteBuilder;
$routes->setRouteClass(DashedRoute::class);
$routes->scope('/', function (RouteBuilder $builder) {
$builder->registerMiddleware('csrf', new CsrfProtectionMiddleware([
'httpOnly' => true,
]));
$builder->applyMiddleware('csrf');
//$builder->connect('/pages',['controller'=>'Pages','action'=>'display', 'home']);
$builder->connect('validation',['controller'=>'Valid','action'=>'index']);
$builder->fallbacks();
});
?>

Now create an index.php file and write the following code as follows.

<?php
if($errors) {
foreach($errors as $error)
foreach($error as $mssg)
echo '<font color="red">'.$mssg.'</font><br>';
} else {
echo "There is no errors.";
}
echo $this->Form->create(NULL,array('url'=>'/validation'));
echo $this->Form->control('username of person');
echo $this->Form->control('password');
echo $this->Form->button('Submit');
echo $this->Form->end();
?>

Now execute the above code we will get the following screen as shown below screenshot.

Suppose let’s consider, if we enter only password then it shows username is required as shown in the following screenshot.

Similarly, we can apply validation for username of person filed as shown in the following screenshot as follows.

In this way, we can implement different methods such as to get, post as per our requirement.

Conclusion

We hope from this article you learn more about the CakePHP validation. From the above article, we have taken in the essential idea of the CakePHP validation and we also see the representation and example of the CakePHP validation. From this article, we learned how and when we use the CakePHP validation.

? ??? CakePHP ??? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!