Are there any potential pitfalls to be aware of when using the glob() function in PHP to filter files?

One potential pitfall when using the glob() function in PHP to filter files is that it may not handle special characters or patterns correctly, leading to unexpected results or errors. To avoid this issue, it is recommended to use the GLOB_BRACE flag along with the glob() function to handle patterns properly. 

$files = glob('path/to/files/{*.txt,*.csv}', GLOB_BRACE);
foreach ($files as $file) {
    echo $file . "\n";
}

Keywords

glob file filtering file system directory traversal security vulnerabilities

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