How does Laravel Validate String?

Kim Prince

When I use Laravel's string validation rule, what exactly is it doing? For example, does it simply run php's is_string() method, or does it run filter_var() perhaps, with the FILTER_VALIDATE_REGEXP constant?

Secondly, how do I strip tags using Laravel?

linktoahref

When you use Laravel's string validation, the following function gets called

protected function validateAttribute($attribute, $rule) { ... }

which you could find in

vendor/laravel/framework/src/Illuminate/Validation/Validator.php

and if you examine the method, you'll find this piece of code

$method = "validate{$rule}";

if ($validatable && ! $this->$method($attribute, $value, $parameters, $this)) {
    $this->addFailure($attribute, $rule, $parameters);
}

which would call the trait Concerns\ValidatesAttributes

/**
 * Validate that an attribute is a string.
 *
 * @param  string  $attribute
 * @param  mixed   $value
 * @return bool
 */
public function validateString($attribute, $value)
{
    return is_string($value);
}

and to strip tags you could use PHP's strip_tags method

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