Preventing blank or already entered values


Posted on 16th Feb 2014 07:03 pm by admin

Im trying to learn how to place a read file line by line and prevent duplicate entries and also BLANK entries, into my process php script,

using feof, I have failed many times and get so many errors such as syntax expecting . or , and so forth
this is my process.php
Did you know?Explore Trending and Topic pages for more stories like this.
<?php
$File = "links.txt";
$Handle = fopen($File, 'a');
$Data = "".$_POST['ID'];
fwrite($Handle, $Data."n");
print "Data Addedn";
fclose($Handle);
?>


<?php
countLines("links.txt");
function countLines($filepath)
{
$handle = fopen( $filepath, "r" );
$count = 0;
while( fgets($handle) )
{
$count++;
}
fclose($handle);
return $count;
}

?>
<head>
<meta http-equiv="REFRESH" content="5;test1.php"></HEAD>

please wait... navigating back!



I got fed up and deleted all my work, to start from scratch,

if feof($_POST['ID'])
{
alert 'Already entered';
return;
}
that was just one of my attempts
also im unsure if putting in /n would make it look for /n or new line, if it looks for new line and every file has the new line marker would it always return as the data was already entered?

Thanks in advance for assistance/teaching
No comments posted yet

Your Answer:

Login to answer
241 Like 9 Dislike
Previous forums Next forums
Other forums

Help with Hyperlink
Hi,

What I am trying to do may be simple, I just can't get it to work. Ok...

I am usin

need help in dynamic select menu in php
hi i have created a dynamic select menu using php. i have a problem in that which is when the user s

Need Reporting Advice
My SQL server doesn't support MS SQL reporting services that comes with SQL Enterprise or Express. T

help retrieiving results and doing pagination
Having some trouble trying to get the results to show on more than just one page.

What is ha

what business processes?
Hi,

A general question. What business processes (like OTC - Order to Cach, P2P, R2R etc)

Revoking alter any table from a schema
Hi All,

i am working in Oracle 10g.
my requirement is to revoke all kind of DDL oper

'210010106140040100' == '210010106140040101'
Debugging this simple line of a PHP script

Code: if($a == $b){ }
I've found that with val

Strange cookie problem. setcookie dependant on where user was directed from?
Hello,

I have a website that sets a cookie when a user visits the website. The cookie holds a

Locking mysql tables with php
Hi

BACKGROUND:
I have multiple instances of the same php script running in a WAMP environ

imap: how to save a copy of sent emails to sent elements
Hello my friends,

I am writing an online emailing application with inbox outbox/sent elements

Sign up to write
Sign up now if you have flare of writing..
Login   |   Register
Follow Us
Indyaspeak @ Facebook Indyaspeak @ Twitter Indyaspeak @ Pinterest RSS



Play Free Quiz and Win Cash