utf8_accents_to_ascii (line 190)

Replace accented UTF-8 characters by unaccented ASCII-7 "equivalents".

The purpose of this function is to replace characters commonly found in Latin alphabets with something more or less equivalent from the ASCII range. This can be useful for converting a UTF-8 to something ready for a filename, for example. Following the use of this function, you would probably also pass the string through utf8_strip_non_ascii to clean out any other non-ASCII chars Use the optional parameter to just deaccent lower ($case = -1) or upper ($case = 1) letters. Default is to deaccent both cases ($case = 0)

• return: accented chars replaced with ascii equivalents
• author: Andreas Gohr <[email protected]>

• string 2: UTF-8 with accented characters replaced by ASCII chars
• string $str: UTF-8 string
• int $case: (optional) -1 lowercase only, +1 uppercase only, 1 both cases

utf8_is_ascii_ctrl (line 111)

Tests whether a string contains only 7bit ASCII bytes with device control codes omitted. The device control codes can be found on the second table here: http://www.w3schools.com/tags/ref_ascii.asp

• return: TRUE if it's all ASCII without device control codes
• see: utf8_is_ascii()

• string $str

utf8_strip_non_ascii_ctrl (line 157)

Strip out all non 7bit ASCII bytes and ASCII device control codes.

For a list of ASCII device control codes see the 2nd table here: http://www.w3schools.com/tags/ref_ascii.asp

• return: TRUE if it's all ASCII

• string $str