mb_substr(3) [php man page]

MB_SUBSTR(3)								 1							      MB_SUBSTR(3)

mb_substr - Get part of string

SYNOPSIS

       string mb_substr (string  $str, int  $start, [int  $length = NULL], [string  $encoding = mb_internal_encoding()])

DESCRIPTION

	Performs  a multi-byte safe substr(3) operation based on number of characters. Position is counted from the beginning of $str. First char-
       acter's position is 0. Second character position is 1, and so on.

PARAMETERS

	      o $str
		- The string to extract the substring from.

	      o $start
		- Position of first character to use from $str.

	      o $length
		- Maximum number of characters to use from $str. If omitted or NULL is passed, extract all characters to the end of the string.

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

RETURN VALUES

       mb_substr(3) returns the portion of $str specified by the $start and $length parameters.

SEE ALSO

       mb_strcut(3), mb_internal_encoding(3).

PHP Documentation Group 													      MB_SUBSTR(3)

MB_STRPOS(3)								 1							      MB_STRPOS(3)

mb_strpos - Find position of first occurrence of string in a string

SYNOPSIS

       int mb_strpos (string  $haystack, string  $needle, [int	$offset], [string  $encoding = mb_internal_encoding()])

DESCRIPTION

	Finds position of the first occurrence of a string in a string.

	Performs  a  multi-byte  safe strpos(3) operation based on number of characters. The first character's position is 0, the second character
       position is 1, and so on.

PARAMETERS

	      o $haystack
		- The string being checked.

	      o $needle
		- The string to find in $haystack. In contrast with strpos(3), numeric values are not applied as the ordinal value of a character.

	      o $offset
		- The search offset. If it is not specified, 0 is used.

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

RETURN VALUES

	Returns the numeric position of the first occurrence of $needle in the $haystack string. If $needle is not found, it returns FALSE.

SEE ALSO

       mb_internal_encoding(3), strpos(3).

PHP Documentation Group 													      MB_STRPOS(3)