What function in PHP can be used to read all files in a directory and filter out specific file types?

To read all files in a directory and filter out specific file types in PHP, you can use the `glob()` function to retrieve an array of files matching a specified pattern. You can then loop through the array and use the `pathinfo()` function to get the file extension and filter out the specific file types you want to exclude. 

$directory = 'path/to/directory/';
$files = glob($directory . '*');

$allowedFileTypes = ['jpg', 'png', 'gif'];

foreach ($files as $file) {
    $extension = pathinfo($file, PATHINFO_EXTENSION);
    
    if (in_array($extension, $allowedFileTypes)) {
        // Process the file here
        echo $file . " is allowed\n";
    } else {
        // Exclude the file
        echo $file . " is not allowed\n";
    }
}

Keywords

PHP function read files directory filter by file type

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