note 76396 deleted from function.mb-check-encoding by jani

From: Date: Sun, 26 Oct 2008 23:07:07 +0000
Subject: note 76396 deleted from function.mb-check-encoding by jani
References: 1  Groups: php.notes 
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Note Submitter: Olexa Riznyk ---- This function returns true incorrectly sometimes (at least when internal encoding is UTF-8 and encoding being checked for is Windows-1251, and PHP version 4.4.4 on FreeBSD 6.2 STABLE). This bug was not answered in bug reporting yet, so here is a workaround: Instead of checking for this: <?php mb_check_encoding($var, $destination_encoding) ?> check for this: <?php mb_check_encoding($var, $destination_encoding) && mb_substr_count($var, '?', $source_encoding) == mb_substr_count(mb_convert_encoding($var, $destination_encoding, $source_encoding), '?', $destination_encoding) ?> The idea is to count question mark characters ('?') in original value and converted value, because mb_convert_encoding function uses question marks to substitute characters that are not valid in destination encoding.

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