36 lines
718 B
Markdown
36 lines
718 B
Markdown
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# Attribute
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- `v::attribute(string $name)`
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- `v::attribute(string $name, v $validator)`
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- `v::attribute(string $name, v $validator, boolean $mandatory = true)`
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Validates an object attribute.
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```php
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$obj = new stdClass;
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$obj->foo = 'bar';
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v::attribute('foo')->validate($obj); // true
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```
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You can also validate the attribute itself:
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```php
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v::attribute('foo', v::equals('bar'))->validate($obj); // true
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```
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Third parameter makes the attribute presence optional:
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```php
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v::attribute('lorem', v::stringType(), false)->validate($obj); // true
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```
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The name of this validator is automatically set to the attribute name.
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***
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See also:
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* [Key](Key.md)
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* [KeyNested](KeyNested.md)
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* [ObjectType](ObjectType.md)
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