Hi Experts..
what do these commands mean :

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Hi yazan3000

The online php manual is your friend, it has a description of all of the php functions as well as examples of use and additional user contributed notes. http://www.php.net

flock - see manual notes.

fgets - gets line from file pointer.

fseek - seeks the file pointer.

fwrite (fputs is an alias of fwrite) - writes data to a file.

rtrim (chop is an alias of rtrim) - http://us2.php.net/manual/en/function.rtrim.php

More commonly trim is used - Strips whitespace from beginning and end of a string.

For reading data from a file its best to use file_get_contents which loads the whole file into a string.

And as of PHP5 for writing to a file its best to use file_put_contents.

A useful reference is: http://www.php.net/quickref.php
Which has links to the documentation for all of the PHP functions.

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