How to Fetch File Names Within a Directory in PHP

Fetching File Names Within a Directory in PHP

In PHP, acquiring the file names within a directory requires specific commands. Having exhausted search engines, this question explores the various methods available for this task.

Approaches

1. DirectoryIterator (Recommended)

<code class="php">foreach (new DirectoryIterator('.') as $file) {
    if ($file->isDot()) continue;
    echo $file->getFilename() . '<br>';
}</code>

2. scandir

<code class="php">$files = scandir('.');
foreach ($files as $file) {
    if ($file == '.' || $file == '..') continue;
    echo $file . '<br>';
}</code>

3. opendir and readdir

<code class="php">if ($handle = opendir('.')) {
    while (false !== ($file = readdir($handle))) {
        if ($file == '.' || $file == '..') continue;
        echo $file . '<br>';
    }
    closedir($handle);
}</code>

4. glob

<code class="php">foreach (glob("*") as $file) {
    if ($file == '.' || $file == '..') continue;
    echo $file . '<br>';
}</code>

Additional Note on glob

Glob offers a unique advantage over other methods. The asterisk (*) wildcard can be used for matching files based on criteria. For instance, glob('*.txt') retrieves all text files in the directory, while glob('image_*') fetches files starting with "image_".

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