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
<?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

Issue Parsing XML into table
Hello all,

Im a bit new to php and new to phpfreaks. But thanks in advance for the help!
<

Hits this week counter
I have a counter on my site that tracks hits, IP's, etc. into a mySQL database. It also includes the

simple script won't work. Please help
I'm new to php, and I am having trouble displaying a simple script in my web browser. My php code ex

help with mysql_error()
Hi,

I am trying to insert data into a table, but I am not able to insert it. I wanted to see

Problems with array
This code is the last lines in an upload script that uploads 4 images at the same time and writes th

Scrolling news bar and MySQL
I am not sure if this is the correct forum to post this on. If not, I apologize. I am still pretty

division gives infinity anser
int main()
{
int z=0;
int i=1/z;
cout<
}

It doesn't throw a

Looping Problem
I've got a client that has a database with about 200 events at any given time. I'm trying to loop t

How to Detect it is public_html or httpdocs?
How to check whether it is cPanel or Plesk?

If it found public_html perform <?php incl

SESSION question
I am building an application , a directory for auctions.
For SEO i made a script which copies a p

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



 
© indyaspeak.com. All Rights Reserved.
Play Free Quiz and Win Cash