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Among the text encodings supported by mbstring are several which are not really 'text encodings'. These include Base64, QPrint, UUencode, HTML entities, '7 bit', and '8 bit'. Rather than providing an explicit list of text encodings which they are interested in, users may pass the output of mb_list_encodings to mb_detect_encoding. Since Base64, QPrint, and so on are included in the output of mb_list_encodings, mb_detect_encoding can return one of these as its 'detected encoding' (and in fact, this often happens). Before mb_detect_encoding was enhanced so it could detect any of the supported text encodings, this did not happen, and it is never desired.
21 lines
485 B
PHP
21 lines
485 B
PHP
--TEST--
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Bug #81298: mb_detect_encoding() segfaults when 7bit encoding is specified
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--EXTENSIONS--
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mbstring
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--FILE--
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<?php
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var_dump(mb_detect_encoding("foobar.", "7bit"));
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var_dump(mb_detect_encoding("foobar.", "7bit,ascii"));
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var_dump(mb_detect_encoding("foobar.", "7bit,ascii,utf8"));
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var_dump(mb_detect_encoding("foobar.", "html"));
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var_dump(mb_detect_encoding("foobar.", "ascii,html"));
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?>
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--EXPECT--
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bool(false)
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string(5) "ASCII"
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string(5) "ASCII"
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bool(false)
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string(5) "ASCII"
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