What are common pitfalls when trying to list only specific file types in a directory using PHP?

One common pitfall when trying to list only specific file types in a directory using PHP is not properly filtering the files based on their file extensions. To solve this issue, you can use the `glob()` function in PHP along with a wildcard pattern to only retrieve files with specific file extensions. 

// Specify the directory path
$directory = 'path/to/directory/';

// Specify the file extension you want to filter by
$fileExtension = 'txt';

// Get an array of files with the specified file extension
$files = glob($directory . '*.{' . $fileExtension . '}', GLOB_BRACE);

// Loop through the files and do something with them
foreach ($files as $file) {
    echo $file . "<br>";
}

Keywords

file types directory PHP filtering mime types

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