You want to list all files in a directory docs but skip the special entries . and ... Which PHP code snippet correctly does this?

hard📝 Application Q15 of 15

PHP - File Handling

You want to list all files in a directory docs but skip the special entries . and ... Which PHP code snippet correctly does this?

Aif (is_dir('docs')) { $dh = opendir('docs'); while (($file = readdir($dh)) !== false) { if ($file != '.' && $file != '..') { echo $file . ' '; } } closedir($dh); }

Bif (is_dir('docs')) { $dh = opendir('docs'); while (($file = readdir($dh))) { echo $file . ' '; } closedir($dh); }

Cforeach (scandir('docs') as $file) { echo $file . ' '; }

Dif (is_dir('docs')) { $dh = opendir('docs'); while (($file = readdir($dh)) !== false) { echo $file . ' '; } closedir($dh); }

Step-by-Step Solution

Solution:

Step 1: Understand how to skip '.' and '..'
The special entries '.' and '..' appear in directory listings and must be explicitly skipped.
Step 2: Analyze each code snippet
if (is_dir('docs')) { $dh = opendir('docs'); while (($file = readdir($dh)) !== false) { if ($file != '.' && $file != '..') { echo $file . ' '; } } closedir($dh); } checks if the file is not '.' or '..' before echoing. foreach (scandir('docs') as $file) { echo $file . ' '; } uses scandir() but does not skip special entries.
Final Answer:
The snippet using if ($file != '.' && $file != '..') -> Option A
Quick Check:
Skip '.' and '..' with if check inside readdir() loop [OK]

Quick Trick: Use if ($file != '.' && $file != '..') to skip special entries [OK]

Common Mistakes:

Not skipping '.' and '..' entries
Using scandir() without filtering special entries
Forgetting to check for false in readdir() loop

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You want to list all files in a directory docs but skip the special entries . and ... Which PHP code snippet correctly does this?

Step 1: Understand how to skip '.' and '..'

Step 2: Analyze each code snippet

Final Answer:

Quick Check:

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