Parameter.php
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Parameter.php
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	<?php

	namespace Sabre\VObject;

	/**
	* VObject Parameter
	*
	* This class represents a parameter. A parameter is always tied to a property.
	* In the case of:
	* DTSTART;VALUE=DATE:20101108
	* VALUE=DATE would be the parameter name and value.
	*
	* @copyright Copyright (C) 2007-2013 fruux GmbH (https://fruux.com/).
	* @author Evert Pot (http://evertpot.com/)
	* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
	*/
	class Parameter extends Node {

	/**
	* Parameter name
	*
	* @var string
	*/
	public $name;

	/**
	* Parameter value
	*
	* @var string
	*/
	public $value;

	/**
	* Sets up the object
	*
	* @param string $name
	* @param string $value
	*/
	public function __construct($name, $value = null) {

	if (!is_scalar($value) && !is_null($value)) {
	throw new \InvalidArgumentException('The value argument must be a scalar value or null');
	}

	$this->name = strtoupper($name);
	$this->value = $value;

	}

	/**
	* Returns the parameter's internal value.
	*
	* @return string
	*/
	public function getValue() {

	return $this->value;

	}


	/**
	* Turns the object back into a serialized blob.
	*
	* @return string
	*/
	public function serialize() {

	if (is_null($this->value)) {
	return $this->name;
	}
	$src = array(
	'\\',
	"\n",
	';',
	',',
	);
	$out = array(
	'\\\\',
	'\n',
	'\;',
	'\,',
	);

	return $this->name . '=' . str_replace($src, $out, $this->value);

	}

	/**
	* Called when this object is being cast to a string
	*
	* @return string
	*/
	public function __toString() {

	return $this->value;

	}

	}