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

Date Question
I'm using the TIMESTAMP() function within mysql to set the date/time for certain events. However, ho

Effort Estimation Template for Steady State Support
Hi Everyone,

Is there any SAP provided template/format for system change and enhancements

rename the file
File.txt

Code: ***DOCUMENT***
..DN:
000044255
..CB:
..SN:
..PY:
2009
..E

How to ask a regex question?
Hi, I thought I'd share some of my insight after seeing too many bad questions that either get ignor

ECC6 - Single sign-on
We are in the process of upgrading to ECC 6 which will support single sign on with user passwords al

Create multiple (n) arrays
Hi there,

I have the following need:

I have 2 arrays (coming from a databases)

Replacing a string on click of a button
Hi! Is there a way to replace a string on a click of a text link?

This is what I've come up w

A little help in c#
i am doing a simple paint program using c# i want to draw with the mouse so i wrote the code of the

Users and Groups with PHP Classes
Hi,

I have setup what I hope to be a good working User class. Now I want to introduce group m

Question handling xml data
Hello,

I have sucessfull followed this tutorial
http://www.phpfreaks.com/tutorial/handlin

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