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
Trending TodaySee what people are reading
No comments posted yet

Your Answer:

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

"GROUP BY" in arrays
Well i'm looking to do something i usually could do easily using COUNT and GROUP BY if it was a sql

Floating Point Precision Loss
I'm writing a program to draw a three-dimensional cube (with a corner cut off) without using any 3D

Creating a unique 'control panel' for each user
Hi there,

I'm thinking of designing a site that will allow users to sign up and have their ow

Program with calculate Meteorologic measurements
Hello I'm a beginner and I want to make a program with calculate Meteorologic measurements:
ba

Unifying logins of two different scripts
I have two different game scripts which I want to embed on my own site. The problem is I don't want

Shuffle between users ??
I have multiple $users in table. I need to send them $message.

I need to send the next messag

Help with PHP and checkboxes
I am posting this for a friend of mine, i wrote a small script for her to process her form data to a

order by date not ID number help php
I am trying to orginize the following code to order by date not id number.
any help would be grea

MII Netweaver Server stopped due to CPIC connection Problem
Dear Experts,
We have SAP XMII 12.0 setup running on Netweaver 2004s,7.0, Java Stack only.

Problem with PHP code- simple contact form
Hi Folks,
I'm relativily new to PHP; I know HTML and CSS stuff but I have a problem- I have a co

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