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Revision Autor Zeilennr. Zeile
365 lars 1 
<?php
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namespace stringEncode;
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class Encode {
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	/**
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	 * The encoding that the string is currently in.
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	 *
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	 * @var string
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	 */
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	protected $from;
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	/**
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	 * The encoding that we would like the string to be in.
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	 *
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	 * @var string
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	 */
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	protected $to;
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	/**
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	 * Sets the default charsets for thie package.
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	 */
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	public function __construct()
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	{
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		// default from encoding
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		$this->from = 'CP1252';
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		// default to encoding
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		$this->to = 'UTF-8';
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	}
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	/**
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	 * Sets the charset that we will be converting to.
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	 *
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	 * @param string $charset
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	 * @chainable
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	 */
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	public function to($charset)
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	{
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		$this->to = strtoupper($charset);
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		return $this;
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	}
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	/**
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	 * Sets the charset that we will be converting from.
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	 *
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	 * @param string $charset
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	 * @chainable
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	 */
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	public function from($charset)
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	{
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		$this->from = strtoupper($charset);
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	}
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	/**
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	 * Returns the to and from charset that we will be using.
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	 *
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	 * @return array
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	 */
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	public function charset()
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	{
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		return [
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			'from' => $this->from,
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			'to'   => $this->to,
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		];
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	}
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	/**
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	 * Attempts to detect the encoding of the given string from the encodingList.
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	 *
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	 * @param string $str
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	 * @param array $encodingList
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	 * @return bool
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	 */
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	public function detect($str, $encodingList = ['UTF-8', 'CP1252'])
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	{
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		$charset = mb_detect_encoding($str, $encodingList);
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		if ($charset === false)
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		{
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			// could not detect charset
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			return false;
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		}
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		$this->from = $charset;
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		return true;
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	}
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	/**
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	 * Attempts to convert the string to the proper charset.
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	 *
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	 * @return string
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	 */
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	public  function convert($str)
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	{
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		if ($this->from != $this->to)
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		{
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			$str = iconv($this->from, $this->to, $str);
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		}
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		if ($str === false)
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		{
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			// the convertion was a failure
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			throw new Exception('The convertion from "'.$this->from.'" to "'.$this->to.'" was a failure.');
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		}
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		// deal with BOM issue for utf-8 text
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		if ($this->to == 'UTF-8')
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		{
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			if (substr($str, 0, 3) == "\xef\xbb\xbf")
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			{
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				$str = substr($str, 3);
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			}
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			if (substr($str, -3, 3) == "\xef\xbb\xbf")
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			{
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				$str = substr($str, 0, -3);
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			}
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		}
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		return $str;
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	}
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}