Stop List After xx Number of Entries

[cookiemonster]

<?php
function listFolders(){
$path = glob("*",GLOB_ONLYDIR); //the double \\ is not a typo you
//have to escape it
//if the path cannot be found
if(!($path)){
echo("The specified path could not be found.");
return;
}//if

//the path is valid
else{
foreach($path as $i){

echo $i;
echo "<br>";

}//foreach
}//else
}//populateDropdown
?>
<?php echo listFolders() ?>

Hi everyone,

The code above lists every folder in a specified directory. I'd like to know if there's any way to limit the number of displayed folders to, for example, the first 10.

Thanks!

[dreamcatcher]

Maybe a for loop instead?

$count = count($path);

for ($i=0; $i<($count>10 ? 10 : $count); $i++) {
echo $path[$i];
}

dc

[morehawes]

Maybe not the most elegant approach but looking at the readdir examples in the PHP docs [uk3.php.net...] you could edit the while loop so it breaks when a certain condition is met :

$count = 0;
while (false !== ($file = readdir($handle))) {
 echo "$file\n";
 $count++;
 if($count == 10) {
 break;
 }
}

A little crude but you get the idea. You would also need to check that $file is a directory.

[rocknbil]

Right, I'd be using that . . .but given what you have here,

<?php 
function listFolders($path,$recurse_limit=null){ 
 $counter=0; 
 $dirlist=$dir_errors=null; 
 //if the path cannot be found 
 if(! is_dir($path)){ 
 return Array (null,"The specified path could not be found."); 
 }//if 
 //the path is valid 
 else{ 
 foreach($path as $i){ 
  $counter++; 
  $dirlist .= "<li>$i</li>\n"; // Retentive about semantics is Padawan 
  if ($recurse_limit and ($counter >= $recurse_limit)) { 
  break; 
  } 
 }//foreach 
 }//else 
 return Array($dirlist,$dir_errors); 
}//listFolders 
?> 
// 
<?php  
// assuming GLOB_ONLYDIR is a constant 
$dir_limit = 10; 
list($dirs,$errors) = listFolders(GLOB_ONLYDIR,$dir_limit); 
echo ($errors)?"Error: $errors":"<ul>$dir</ul>"; 
?> 

You really don't need $dir_errors as you only have one error check, but it may be that you might add more later. So instead of

return Array (null,"The specified path could not be found.");

you could do

$dir_errors .= "<li>The specified path could not be found.</li>";

and

$dir_errors .= "<li>Some other error</li>";

then they both return at the end of the function.