PHP equivalent to Perl $_; function

[Anon]

I am trying to write a number to a file for the purposes of incrementing the number.
In perl you just open the file and use the $var=<FILEHANDLE>;
function to read in the value as per below.
ie.
open (USERID, "</home/file.txt");
$userid = <USERID>;
close USERID;

$userid++ ;

open (USERID, ">/home/file.txt");
flock(USERID, 2);
print USERID $userid;
flock(USERID, 2);
close USERID;

How do I do the very same thing in PHP?
I have looked through the functions and can't find a simple way of doing the same thing.
Thanks - Bruce

[Anon]

fopen() and fput()

-paul
http://xhawk.net

[Anon]

Visit http://www.php.net/manual/en/function.file.php

NOTE: file() returns an array not a scalar.

-- Michael
Darkstreak Consulting
www.darkstreak.com

[Anon]

Sorry about my ignorance here but how do I use these functions in the above context.

I have tried a few variations of
fopen() and fputs() and neither seem to function.

[Anon]

Just use fopen, fgets, fwrite, and fclose.

<?PHP
/ Open File for Reading, read the file in
to the var $num_i, and the close the file /
$fp = fopen("File.txt", "r");
$num_i = fread($fp, 255);
fclose($fp);

/ Increment or modify var $num_i here /
$num_i++;

/ Open the file and write the modified number back to the
file and close the file /
$fp = fopen("File.txt", "w");
fwrite($fp, $num_i);
fclose($fp);
?>

[Anon]

KXRM, thanks for that, was getting a little flustered with such a simple function.

[kparker]

Dare I point out that your perl function has got some serious loopholes?