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[PHP 读取 exe\dll 文件版本号] 遇到大文件会有问题 #版本号 #exe #版本
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<?php | |
/** | |
* PHP 读取 exe\dll 文件版本号 | |
* | |
* @auth @腾讯电脑管家(https://zhidao.baidu.com/question/246143241010222924.html) | |
* @param $filename 目标文件 | |
* @return string|string[] | |
*/ | |
function getVersionFromFile($filename) | |
{ | |
$fileversion = ''; | |
$fpFile = @fopen($filename, "rb"); | |
// 有风险,大文件是否会超出内存? | |
$strFileContent = @fread($fpFile, filesize($filename)); | |
fclose($fpFile); | |
if ($strFileContent) { | |
$strTagBefore = 'F\0i\0l\0e\0V\0e\0r\0s\0i\0o\0n\0\0\0\0\0'; // 如果使用这行,读取的是 FileVersion | |
$strTagBefore = 'P\0r\0o\0d\0u\0c\0t\0V\0e\0r\0s\0i\0o\0n\0\0'; // 如果使用这行,读取的是 ProductVersion | |
$strTagAfter = '\0\0'; | |
if (preg_match("/$strTagBefore(.*?)$strTagAfter/", $strFileContent, $arrMatches)) { | |
if (count($arrMatches) == 2) { | |
$fileversion = str_replace("\0", '', $arrMatches[1]); | |
} | |
} | |
} | |
return $fileversion; | |
} |
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