str_rot13(3) [php man page]

STR_ROT13(3)								 1							      STR_ROT13(3)

str_rot13 - Perform the rot13 transform on a string

SYNOPSIS

       string str_rot13 (string  $str)

DESCRIPTION

	Performs the ROT13 encoding on the $str argument and returns the resulting string.

	The  ROT13  encoding  simply  shifts  every letter by 13 places in the alphabet while leaving non-alpha characters untouched. Encoding and
       decoding are done by the same function, passing an encoded string as argument will return the original version.

PARAMETERS

	      o $str
		- The input string.

RETURN VALUES

	Returns the ROT13 version of the given string.

EXAMPLES

       Example #1

	      str_rot13(3) example

	      <?php

	      echo str_rot13('PHP 4.3.0'); // CUC 4.3.0

	      ?>

PHP Documentation Group 													      STR_ROT13(3)

MB_CONVERT_CASE(3)							 1							MB_CONVERT_CASE(3)

mb_convert_case - Perform case folding on a string

SYNOPSIS

       string mb_convert_case (string  $str, int  $mode, [string  $encoding = mb_internal_encoding()])

DESCRIPTION

	Performs case folding on a string, converted in the way specified by $mode.

PARAMETERS

	      o $str
		- The string being converted.

	      o $mode
		- The mode of the conversion. It can be one of MB_CASE_UPPER, MB_CASE_LOWER, or MB_CASE_TITLE.

	      o $encoding
		-The $encoding parameter is the character encoding. If it is omitted, the internal character encoding value will be used.

RETURN VALUES

	A case folded version of $string converted in the way specified by $mode.

UNICODE

	By  contrast to the standard case folding functions such as strtolower(3) and strtoupper(3), case folding is performed on the basis of the
       Unicode character properties. Thus the behaviour of this function is not affected by locale settings and it can convert any characters that
       have 'alphabetic' property, such as A-umlaut (A).

	For more information about the Unicode properties, please see http://www.unicode.org/unicode/reports/tr21/.

EXAMPLES

       Example #1

	      mb_convert_case(3) example

	      <?php
	      $str = "mary had a Little lamb and she loved it so";
	      $str = mb_convert_case($str, MB_CASE_UPPER, "UTF-8");
	      echo $str; // Prints MARY HAD A LITTLE LAMB AND SHE LOVED IT SO
	      $str = mb_convert_case($str, MB_CASE_TITLE, "UTF-8");
	      echo $str; // Prints Mary Had A Little Lamb And She Loved It So
	      ?>

       Example #2

	      mb_convert_case(3) example with non-Latin UTF-8 text

	      <?php
	      $str = "Txiotn a
nE Baos unuvn yn, dpaokeCei unp vw0po kuvs";
	      $str = mb_convert_case($_tr, MB_CASE_UP_ER, "UTF_8");   _ 		     _
	      echo $str; // Prints TXI>TH A/TTHH BAO> YHMNH | H, /PA>KE/EI YTTP NOOPO KYN>
	      $str = mb_convert_case($str, MB_CASE_TITLE, "U_F-8");
	      echo $str; // Prints Txiotn A
nE Baoo Ynuvn | n, /paokeCei Ynp Nw0po Kuvo
	      ?>

SEE ALSO

       mb_strtolower(3), mb_strtoupper(3), strtolower(3), strtoupper(3), ucfirst(3), ucwords(3).

PHP Documentation Group 													MB_CONVERT_CASE(3)