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

GMail like Chat in ASP.NET
Hi,Can anyone suggest me, how to incorporate GMail like chat in my existing ASP.Net application.I wa

Include ("Absolute Path") of a file?
I'm not sure what I'm doing wrong. I am writing my php code in the same directory of the file that

quick question
Hi ..

i have a question
how do i set a var so it displays via an echo
Code: $logo = '&a

PHP time (deadline within one week)
I have a column ['projdue'], which stores the deadline for a project.
I have PHP code and <

ob_ dynamic content
i was wondering about the potential to use ob to create a <div then remove it when the page

i have no idea why this isn't working
Code: <?php
session_start();
include("connect.php");

error_reporting(E

Need help making a blockquote and line items conditional
I have some code I bought a few years ago that allows my clients to update content on their site usi

Warning: mysql_num_rows() supplied argument is not a valid MySQL result resource
This may be simple I just may need another pair of eyes..

When i get records back the below c

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

Firewall / visited websites logger
Hi. I have a firewall implementation and I want to log all the websites visited on the machine. S

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