directory listing > random text input

[Anon]

Okay hello,

Total newbie of course (don't kill me!)

I have 2 scripts currently and I want to 'sort of' merge them... still with me???

Okay pretty simple... what I want them to do is pick a file from the current directory (an image file) and choose one of these randomly then display (echho/print etc) the filename. beyond this I can probably manipulate it further myself.

The two scripts i had in mind were this 1 that lists the files in the current directory (but not the ".", the ".." or the "index.php" files):

<START>
$handle=opendir('.');

while ($file = readdir($handle))
{
if ($file != "." && $file != ".." && $file != "index.php")
{
echo "$file\r";
}
}
closedir($handle);
<END>

And the other script that will output a random line from a specified textfile:

<START>
function randomline($filename)
{
$file = file($filename);

srand((double)microtime()*1000000);

while ($randomquote == "")
{
$randomquote = ereg_replace("\n","",$file[rand(0,count($file))]);
}
echo $randomquote;

}

<END>

Still with me???

I sort of understand how each script works individually but I also understand the difficulties in directly using both of them.

Should i use arrays?? if so how??

Any help would be gratefully accepted as I want to get started with this PHP stuff asap🙂

Thanks in advance to all you clever ppl.

Rob

[Anon]

Ok what you want to do is very easy, instead of echoing out the $file in the first script you want to add it to an array. And in the second script you want to randomly choose one of the items in the array instead of getting a line from a file.

$handle=opendir('.');
$files = array();

while ($file = readdir($handle))
{
if ($file != "." && $file != ".." && $file != "index.php")
{
$files[] = $file; // $files[] means fill the next empty slot starting with 0
}
}
closedir($handle);

$random_file = randomline($files); //call the randomizer function passing in an array of filenames, and get back 1 filename

function randomline($filearray)
{

srand((double)microtime()*1000000);

$file = $filearray[rand(0, count($filearray))];

return $file;
}

[Anon]

Great that actually works and i think I understand it beter now!

I'm well on the way to making it do what I want it to now...

Thanks again!

RT

[Anon]

Actually I could do with some more help anyone...

That script throws back nothing some of the time (something to do woth the arrayor something)

Can anyone help

thanks

RT

[Anon]

Sorry about that the reason you sometimes get a blank return is that I put in count($filearray) which returns the count of records in the array, but since PHP starts it's array counting at 0 the number is off.

Array $test:
0 - this is the first item in the array
1 - this is the second item in the array

count($test) = 2, but there is no $test[2].

To fix it just change the count($filearray) to be (count($filearray)-1).

[Anon]

sorted now cool....

Anyone help a little more...

I want to turn:

www.somedomain.com.gif (or jpg, or png)

into:

www.somedomain.com

by extracting the .gif/.jpg/.png

Any help appreciated NE1

RT

[Anon]

$name = "www.somedomain.com.gif";

$length = strlen($name);

$newname = substr($name, 0, ($length - 4));

That is if you know it's only got 3 letters for the extension. If you don't know length of the extension then you will have to find it.

$name = "www.somedomain.com.gif";

$length = strlen($name);

for ($i = $length, $i >= 0; $i--) {
if (substr($name,$i,1) == "."){
$newname = substr($name, 0, $i);
}
}

P.S. if you want to have other people acutally look at your new questions you should start a new thread. Most people don't bother reading into a thread this deep.