Input a file 1 line at a time (fread)?

File to large to open at once.

[cochranrg]

I need to open a text file and import the contents one line at a time. Is this do-able? Can't seem to figure out if it is or not.

When I do:

$filename = "../".$_GET['cat'].".dba";
$categories = fopen($filename, "r") or die("Can't Open File $filename");
$cat_file = fread($categories, filesize($filename));
fclose($categories);

I get

Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 1095 bytes) in /#*$!xxx/xxxxx/viewlist.php on line 38

Help!

Thanks,
Rob

[avant_garde]

Okay, first, you probably want to verify that your GET variable is safe to use and in the format you intend. You might want to make sure there are no ".", "/", or "\" characters, for example:

$cat = $_GET['cat']; 
if (strpos($cat, '.')!== false ¦¦ strpos($cat, '/')!== false ¦¦ strpos($cat, '\')!== false) { 
 die('bad cat'); 
} 

Second, if you want to deal with the lines of a text file one at a time, you could use the

file()

function. This will read the entire file and return it as an array, with the value of each array element corresponding to a line in the file.

$lines = file($filename); 

Lastly, if you want to import data from large database type files (.dba), have a look at the Database (dbm-style) Abstraction Layer Functions chapter in the PHP manual.

[adb64]

You may use the following code to read a file line by line:

$fp = @fopen($filename,"r"); 
if ($fp) 
{ 
 while(!feof($fp)) 
 { 
 $Line = trim(fgets($fp,1024)); 
 /* handle $Line here */ 
 } 
 fclose($fp); 
} 

Max length of a line in this case in 1024 characters, adapt to your needs.

Arjan

[cochranrg]

Thank you all. Found out that my files are getting too big for the host anyway. Switching to MySQL, having problems though with that as well!

Hard to be a newbie...

RC