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encoding - Why are PHP string functions not multi-byte safe by default?

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encoding - Why are PHP string functions not multi-byte safe by default?

Why are the PHP multi-byte string functions (the ones which start with mb_) not used by default in PHP?

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Backwards compatibility. Old PHP scripts depend on non-multibyte functionality.

See also: http://www.php.net/manual/en/mbstring.overload.php


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