src/Markup.php
public function booleanAttrib($name, $value = true, $comparisonAttribute = null)
	{
		$this->attributes->setBooleanAttrib($name, $value, $comparisonAttribute);
		return $this;
	}
public function booleanAttrib($name, $value = true, $comparisonAttribute = null)
	{
		$this->attributes->setBooleanAttrib($name, $value, $comparisonAttribute);
		return $this;
	}
public function booleanAttrib ( $ name , $ value = true , $ comparisonAttribute = null ) { $ this -> attributes -> setBooleanAttrib ( $ name , $ value , $ comparisonAttribute ) ; return $ this ; }
Sets a boolean attribute, if applicable by comparing a value with the value of another
attribute.

@param  string  $name                 Name of the attribute.
@param  mixed   $value                Boolean or one or more (array) values.
@param  string  $comparisonAttribute  Name of the other attribute to compare with.
@return Xml
Sets a boolean attribute if applicable by comparing a value with the value of another attribute .