PHP:Convert a String to Chars

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PHP does not have the char type, just numbers and string.

You can convert to and from ASCII values and Strings using ord and chr

You can treat a string as an array of characters

Show character number 2 (the third character) and the ASCII value of this.

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See http://www.php.net/manual/en/ref.mbstring.php for details of how to deal with multi-byte strings such as utf-8