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Vladislav Rastrusny
Asked: 2010-05-27 04:01:29 +0800 CST

PHP: what is --enable-zend-multibyte configure option for?

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What is exactly --enable-zend-multibyte option for when you ./configure PHP?

php configuration

3 Answers

  1. Best Answer

    It is to be able to detect if PHP scripts are Unicode/Multibyte encoded or not (UTF-8 always works and does not need this setting).

    I've found this information in this article http://devzone.zend.com/article/2693 (archived copy, the article itself is outdated).

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  2. It is a prerequisite for declare(encoding) handling.

    Apart from that, I have filed a bug about the lack of documentation for this: http://bugs.php.net/bug.php?id=52348

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  3. The configuration option --enable-zend-multibyte is part of the zend scripting engine and used for auto-detection of Unicode encoded scripts and files. It looks for BOM (byte order marks) in the begining of the file and uses that to figure out the encoding.

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