What function in PHP can be used to retrieve all file names that match a specific search expression in a directory?

To retrieve all file names that match a specific search expression in a directory in PHP, you can use the `glob()` function. This function allows you to search for files using wildcard characters like '*' and '?' in a specified directory. By passing the search expression as a parameter to `glob()`, you can retrieve an array of file names that match the criteria. 

$directory = '/path/to/directory/';
$searchExpression = '*.txt'; // Search for all files with a .txt extension

$files = glob($directory . $searchExpression);

foreach ($files as $file) {
    echo $file . "\n";
}

Keywords

PHP function retrieve file names search expression

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