respect-validation/docs/Attribute.md

Attribute

• v::attribute(string $name)
• v::attribute(string $name, v $validator)
• v::attribute(string $name, v $validator, boolean $mandatory = true)

Validates an object attribute.

$obj = new stdClass;
$obj->foo = 'bar';

v::attribute('foo')->validate($obj); // true

You can also validate the attribute itself:

v::attribute('foo', v::equals('bar'))->validate($obj); // true

Third parameter makes the attribute presence optional:

v::attribute('lorem', v::stringType(), false)->validate($obj); // true

The name of this validator is automatically set to the attribute name.

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See also:

• Key