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<?php
namespace Mbright\Validation\Rule\Validate;
class StringVal implements ValidateRuleInterface
{
/**
* Validates that the value can be represented as a string.
*
* Essentially, this means any scalar value is valid (no arrays, objects, resources, etc). If the $subject is an
* object and has a __tostring() method, this will validate successfully.
* @param object $subject The subject to be filtered.
* @param string $field The subject field name.
* @return bool True if valid, false if not.
*/
public function __invoke($subject, string $field): bool
$value = $subject->$field;
if (is_object($value)) {
return method_exists($value, '__toString');
}
return is_scalar($value);
MarcusFulbright /
Validate
