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

How to kill asynchronous postback / current postback?
Hi,here is my problem:I have a web site with many pages of which some may take time to process resul

Progress bar for webpage
Hi,
I want to implement a progress/waiting bar on my webpage - exactly the same thing that the Mi

values not being entered into table
hi. I;ve created a form, so that when a user enters data into it, it gets added to a table in a data

array empty
Hiya peeps,

Ok here is the codes.

order.php

Code:

login to other site by sending post variables
hey,

here is my problem: my school gave me a mail account for school-stuff use. they mail us

problem with GROUP BY and ORDER BY
i usually use this query to display the last 10 entries from a sql table:

Code: $query = &quo

please help me in this update statment
hi every one

if I have table and this data in it

id name
10

Multiple Pages
Hi. Im very new to php. I'm trying to create a basic login/registration page.

So I have a bas

Validating time
Hi Guys

what do you think of the following approach to validate a 24hour time:

http://

SAP Project Module
I have seen in the SAP Project Module,plan cost and budget are not equal and even difference is sign

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