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

Can't find a decent web analytics!!!
I've downloaded and installed Piwik. It's location detection based on IP addresses is fairly inaccur

mysql select with $_get ?
Hi, i have this code:
Code: // If char id is 0 and character dont exist do:
if ($_GET["id

Comma seperated implode & modifying returned string.
I have a PHP post form that posts up to 4 variables. I need whatever variables are passed to be comb

RSS feed - FeedList for WordPress
Hi,

I'm trying to alter the FeedList plugin for WordPress so that I can click on the title of

problem with php server update from mid 2009
Hi,

I have this navigation menu on 2 websites which used to work just fine. After a recent up

Not reloading page after php form submit
Hello helpful souls out there. You guys have come through for me in the recent past and I'm hoping s

recrawling
Can anyone suggest me how may i know a page is updated before it is being downloaded, so that i can

UDP Multicast question
Hey,

Im not really in the know when it comes to network related programming and activitie

PDO returns erroneous columns from within pdt
Hi All,

This is a truly weird behavior:
When using a simple pdo fetch, erroneous columns a

dynamic table with forms
I have a table that is populated with mysql data and in teh first column there is a raido button tha

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