When using glob() and scandir() functions in PHP to retrieve files from a directory, what are the key differences and potential advantages of each?

When using glob() and scandir() functions in PHP to retrieve files from a directory, the key difference lies in the way they return the file list. glob() returns an array of files that match a specified pattern, while scandir() returns all files and directories in the specified directory. The potential advantage of glob() is that it allows for more specific filtering based on patterns, whereas scandir() provides a simple list of all files and directories. 

// Using glob() to retrieve files with a specific pattern
$files = glob('/path/to/directory/*.txt');

foreach ($files as $file) {
    echo $file . PHP_EOL;
}

// Using scandir() to retrieve all files and directories
$files = scandir('/path/to/directory');

foreach ($files as $file) {
    echo $file . PHP_EOL;
}

Keywords

glob scandir PHP directory files

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