7 replies to this topic

[mrruben5]

You need to return the output, not echo it. Then it'll work fine.

[Byggemanden]

I have updated this snippet in the Snippet Library!

[This is an automatically created message]

Hi

How do I use the snippet??? [[directory???????????

[Ralph]

Hi

How do I use the snippet??? [[directory???????????

Try using the code below... It should be self-explanatory...

// Directory - Snippet
// Usage: [ !Directory?dir=rel_dir_path! ]
// if $dir is not sent in the snippet call, show current dir
$dir = isset($dir) ? $dir : ".";
if ($handle = opendir($dir)) { 
	while (false !== ($entry = readdir($handle))) { 
		if ($entry != "." && $entry != "..") { 
			return "$entry\n"; 
		} 
	} 
	closedir($handle); 
}

[PaulD]

Cool piece of code: Have I understood it correctly (I realise this is not a 'learn PHP forum' )

The line while (false !== ($entry = readdir($handle))) is astounding!

This is my interpretation of the snippet:

$dir = isset($dir) ? $dir : "."; If directory is set, fine, if not set it to '.' which means current directory
if ($handle = opendir('.')) { If the uninitialised variable $handle is = to current directory then:
while (false !== ($entry = readdir($handle))) { repeat while there is something to read in the directory
if ($entry != "." && $entry != "..") { if the directory reading is not . or ..
return "$entry\n"; send the entry
}
}
closedir($handle); close the directory opened earlier
}

Is this right?

I thought you had to write output to a variable first then output that variable with the return command, but it seems you can write output on the fly, so to speak.

Very interesting piece of code (for a humble amateur like myself).

Thanks for the snippet.

Paul

[Ralph]

PaulD, your assumptions are correct... If you revisit my posted code you will find that I made a change to it, however... Notice that I have changed the code to read opendir($dir) instead of the original opendir('.'), which resolves an oversight on my part... The results, if the process finds valid results, are returned in $entry as opposed to the standard return variable, $output...