original_string: public static function quoted_printable($string, $maxlen = 76) {
  			// Make sure the string contains only Unix line breaks
  		$string = str_replace(CRLF, LF, $string); // Replace Windows breaks (\r\n)
  		$string = str_replace(CR, LF, $string); // Replace Mac breaks (\r)
  
  		$linebreak = LF; // Default line break for Unix systems.
  		if (TYPO3_OS == 'WIN') {
  			$linebreak = CRLF; // Line break for Windows. This is needed because PHP on Windows systems send mails via SMTP instead of using sendmail, and thus the line break needs to be \r\n.
  		}
  
  		$newString = '';
  		$theLines = explode(LF, $string); // Split lines
  		foreach ($theLines as $val) {
  			$newVal = '';
  			$theValLen = strlen($val);
  			$len = 0;
  			for ($index = 0; $index < $theValLen; $index++) { // Walk through each character of this line
  				$char = substr($val, $index, 1);
  				$ordVal = ord($char);
  				if ($len > ($maxlen - 4) || ($len > ($maxlen - 14) && $ordVal == 32)) {
  					$newVal .= '=' . $linebreak; // Add a line break
  					$len = 0; // Reset the length counter
  				}
  				if (($ordVal >= 33 && $ordVal <= 60) || ($ordVal >= 62 && $ordVal <= 126) || $ordVal == 9 || $ordVal == 32) {
  					$newVal .= $char; // This character is ok, add it to the message
  					$len++;
  				} else {
  					$newVal .= sprintf('=%02X', $ordVal); // Special character, needs to be encoded
  					$len += 3;
  				}
  			}
  			$newVal = preg_replace('/' . chr(32) . '$/', '=20', $newVal); // Replaces a possible SPACE-character at the end of a line
  			$newVal = preg_replace('/' . TAB . '$/', '=09', $newVal); // Replaces a possible TAB-character at the end of a line
  			$newString .= $newVal . $linebreak;
  		}
  		return preg_replace('/' . $linebreak . '$/', '', $newString); // Remove last newline
  	}
code: public static function quoted_printable($string, $maxlen = 76) {
  			// Make sure the string contains only Unix line breaks
  		$string = str_replace(CRLF, LF, $string); // Replace Windows breaks (\r\n)
  		$string = str_replace(CR, LF, $string); // Replace Mac breaks (\r)
  
  		$linebreak = LF; // Default line break for Unix systems.
  		if (TYPO3_OS == 'WIN') {
  			$linebreak = CRLF; // Line break for Windows. This is needed because PHP on Windows systems send mails via SMTP instead of using sendmail, and thus the line break needs to be \r\n.
  		}
  
  		$newString = '';
  		$theLines = explode(LF, $string); // Split lines
  		foreach ($theLines as $val) {
  			$newVal = '';
  			$theValLen = strlen($val);
  			$len = 0;
  			for ($index = 0; $index < $theValLen; $index++) { // Walk through each character of this line
  				$char = substr($val, $index, 1);
  				$ordVal = ord($char);
  				if ($len > ($maxlen - 4) || ($len > ($maxlen - 14) && $ordVal == 32)) {
  					$newVal .= '=' . $linebreak; // Add a line break
  					$len = 0; // Reset the length counter
  				}
  				if (($ordVal >= 33 && $ordVal <= 60) || ($ordVal >= 62 && $ordVal <= 126) || $ordVal == 9 || $ordVal == 32) {
  					$newVal .= $char; // This character is ok, add it to the message
  					$len++;
  				} else {
  					$newVal .= sprintf('=%02X', $ordVal); // Special character, needs to be encoded
  					$len += 3;
  				}
  			}
  			$newVal = preg_replace('/' . chr(32) . '$/', '=20', $newVal); // Replaces a possible SPACE-character at the end of a line
  			$newVal = preg_replace('/' . TAB . '$/', '=09', $newVal); // Replaces a possible TAB-character at the end of a line
  			$newString .= $newVal . $linebreak;
  		}
  		return preg_replace('/' . $linebreak . '$/', '', $newString); // Remove last newline
  	}
code_tokens: public static function quoted_printable ( $ string , $ maxlen = 76 ) { // Make sure the string contains only Unix line breaks $ string = str_replace ( CRLF , LF , $ string ) ; // Replace Windows breaks (\r\n) $ string = str_replace ( CR , LF , $ string ) ; // Replace Mac breaks (\r) $ linebreak = LF ; // Default line break for Unix systems. if ( TYPO3_OS == 'WIN' ) { $ linebreak = CRLF ; // Line break for Windows. This is needed because PHP on Windows systems send mails via SMTP instead of using sendmail, and thus the line break needs to be \r\n. } $ newString = '' ; $ theLines = explode ( LF , $ string ) ; // Split lines foreach ( $ theLines as $ val ) { $ newVal = '' ; $ theValLen = strlen ( $ val ) ; $ len = 0 ; for ( $ index = 0 ; $ index < $ theValLen ; $ index ++ ) { // Walk through each character of this line $ char = substr ( $ val , $ index , 1 ) ; $ ordVal = ord ( $ char ) ; if ( $ len > ( $ maxlen - 4 ) || ( $ len > ( $ maxlen - 14 ) && $ ordVal == 32 ) ) { $ newVal .= '=' . $ linebreak ; // Add a line break $ len = 0 ; // Reset the length counter } if ( ( $ ordVal >= 33 && $ ordVal <= 60 ) || ( $ ordVal >= 62 && $ ordVal <= 126 ) || $ ordVal == 9 || $ ordVal == 32 ) { $ newVal .= $ char ; // This character is ok, add it to the message $ len ++ ; } else { $ newVal .= sprintf ( '=%02X' , $ ordVal ) ; // Special character, needs to be encoded $ len += 3 ; } } $ newVal = preg_replace ( '/' . chr ( 32 ) . '$/' , '=20' , $ newVal ) ; // Replaces a possible SPACE-character at the end of a line $ newVal = preg_replace ( '/' . TAB . '$/' , '=09' , $ newVal ) ; // Replaces a possible TAB-character at the end of a line $ newString .= $ newVal . $ linebreak ; } return preg_replace ( '/' . $ linebreak . '$/' , '' , $ newString ) ; // Remove last newline }
docstring: Implementation of quoted-printable encode.
  See RFC 1521, section 5.1 Quoted-Printable Content-Transfer-Encoding
  
  @param string $string Content to encode
  @param integer $maxlen Length of the lines, default is 76
  @return string The QP encoded string
docstring_tokens: Implementation of quoted - printable encode . See RFC 1521 section 5 . 1 Quoted - Printable Content - Transfer - Encoding