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23 liveuser 1 
<?php
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class NumberFormat {
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	private $prefix;
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	/**
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	 * What will be displayed before the number
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	 * @var string
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	 */
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	private $suffix;
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	private $format;
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	function __construct($prefix = NULL, $suffix = NULL, $format = NULL) {
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		$this->prefix = $prefix;
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		$this->suffix = $suffix;
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		$this->format = $format;
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	}
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	public function getPrefix() {
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		return $this->prefix;
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	}
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	/**
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	 * Specifies what will be displayed before the number
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	 *
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	 * @param string $prefix
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	 */
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	public function setPrefix($prefix) {
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		$this->prefix = $prefix;
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	}
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	public function getSuffix() {
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		return $this->suffix;
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	}
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	/**
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	 * Specifies what will be displayed after the number
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	 *
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	 * @param string $suffix
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	 */
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	public function setSuffix($suffix) {
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		$this->suffix = $suffix;
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	}
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	public function getFormat() {
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		return $this->format;
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	}
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	/**
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	 * The number formats supported are as follows:
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	 * Numeric: 1, 2, 3, ...
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	 * Alphabetic: a, b, c, ... or A, B, C, ...
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	 * Roman: i, ii, iii, iv, ... or I, II, III, IV,...
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	 * The argument can be "1", "a", "A", "i", or "I". If empty, no number is displayed.
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	 *
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	 * @param string $format
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	 */
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	public function setFormat($format) {
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		switch ($format) {
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			case '1':
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			case 'a':
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			case 'A':
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			case 'i':
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			case 'I':
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				$this->format = $format;
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			default:
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				throw new Exception('Invalid num-format value');
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		}
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	}
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}
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?>