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31 lines
704 B
PHP
31 lines
704 B
PHP
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<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* MIME detection code.
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*
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* @package PhpMyAdmin
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* @todo Maybe we could try to use fileinfo module if loaded
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*/
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/**
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* Tries to detect MIME type of content.
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*
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* @param string &$test First few bytes of content to use for detection
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*
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* @return string
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*/
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function PMA_detectMIME(&$test)
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{
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$len = mb_strlen($test);
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if ($len >= 2 && $test[0] == chr(0xff) && $test[1] == chr(0xd8)) {
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return 'image/jpeg';
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}
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if ($len >= 3 && substr($test, 0, 3) == 'GIF') {
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return 'image/gif';
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}
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if ($len >= 4 && mb_substr($test, 0, 4) == "\x89PNG") {
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return 'image/png';
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}
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return 'application/octet-stream';
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}
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