search folders with array name

[ahmed24]

I have an array called: $folders in it i have defined some folder names like this:

$folders=array("folder1","folder2","folder3","folder4","folder5");

Only one of these folders will contain a file called data.csv and i want to know how i can get php to tell me which one but starting from folder3 onwards (skip folder 1 and 2)

can anyone please tell me how i can do this?

thanks

[JohnCanyon]

for($i=2;$i<count($folders);$i++) { 
 if(is_dir($folders[$i])) { 
 if($dh = opendir($folders[$i])) { 
  while(($file = readdir($dh)) !== false) { 
  if($file == 'data.csv') { 
   echo "Eureka! I found data.csv in {$folders[$i]}"; 
   break; 
  } 
  } 
  closedir($dh); 
 } 
 } 
} 

Albeit.. not tested =)

[ahmed24]

thanks for that, works very well. can anyone tell me how i can make that code stop checking any further once it finds the data.csv file? i dont want it to continue to look in other directories after it has already located the data.csv file

thanks

[ahmed24]

it seems if i put something like exit; or die; where the break; is, then it terminates at the first found result which is what i want, but it also terminates the rest of my html code from loading. so can anyone please tell me how i can do this?

thanks

[TheMadScientist]

for($i=2;$i<count($folders);$i++) { 
 if(is_dir($folders[$i])) { 
 if($dh = opendir($folders[$i])) { 
 while(($file = readdir($dh)) !== false) { 
 if($file == 'data.csv') { 
 echo "Eureka! I found data.csv in {$folders[$i]}"; 
 break; 
 } 
 } 
 closedir($dh); 
 } 
 } 
}

You've got two loops and one break()...
(This can be made more efficient after testing.)

for($i=2;$i<count($folders);$i++) { 
 if(is_dir($folders[$i])) { 
 if($dh = opendir($folders[$i])) { 
 while(($file = readdir($dh)) !== false) { 
 if($file == 'data.csv') { 
 echo "Eureka! I found data.csv in {$folders[$i]}"; 
 break; 
 } 
 } 
 closedir($dh); 
 [b]if($file == 'data.csv') { 
 echo "Eureka! I found data.csv in {$folders[$i]}"; 
 break;
 }[/b]
} 
 }
}

@ JC: How are you getting the spacing for code on the forum? I tried using the code formatting and (obviously) it didn't work... How are you indenting? I don't want to have to find it myself (gettin' lazy or something). lol.

[ahmed24]

thats great.

one last thing i hope someone can help with. this code is checking forward from folder 2 onwards, how about if i wanted to check backwards from folder lets say 4. So in other words not check anything after folder4 but check folder3, 2, and 1 ?

many thanks

[TheMadScientist]

Change the counter to work in reverse... Something to the effect of the following for the for() statement should be close:

for($i=3;$i>=1;$i--) {
/* Same as above here */
}

[ahmed24]

thanks for your reply, so if i want it to check backwards from folder 4 i put

for($i=3

and if i want it to check backwards from folder 5 i put:

for($i=4

is that correct?

if so then i cant seem to get it to work when it comes to folders lower than 4, so if i want it to check before folder 3 i would put

for($i=2

but that doesnt work

any ideas?

[ahmed24]

nevermind, i have done it. many thanks

[JohnCanyon]

@ahmed24 - Glad I was able to get you started.

@TheMadScientist - I use pre in brackets and spaces, still not perfect, but better than nothing. I am surprised they haven't added code formatting. Oh well.

Cheers.

[TheMadScientist]

@ JC Thanks!

I am surprised they haven't added code formatting. Oh well.

AND: I actually sent Brett a sticky about it, and he said it was in the works for the next version, so we should be able to indent easily at some point in the future...