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
No comments posted yet

Your Answer:

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

Internal class functions don't seem to get executed.
Hi. Can someone please put me out of my misery on this. I don't write much PHP and this has me baffl

When file included, REMOTE_ADDR is server's?
I have an index file that handles my site, basically index.php?page=ip will activate "require('

From Header Showing 'Unkown' In Hotmail? Why?
Code: $to = $row_GetID['email_addr'].',sales@mywebaddress.co.uk';
$subject = 'Thank you for you

frames get header location..
i have two frames, one top, one bottom. how do i do a form on the bottom frame that gives me the ur

Opening Multiple Files/Links in Order.
I want to open links in order/one-by-one and check each for a specific string.

Example:
I

Inserting 100x and 100y coordinates in mysql table - easy
Is there a way to insert this data into a mysql table named 'map' with the fields: 'x int 3' , 'y in

Login Script Issues
I am using a script I got from http://phpsense.com/php/php-login-script.html in order to allow peopl

Printing a webpage
I use this to print the webpage: o

Production of mango in processing industry
Hi,

We have one scenario ,company is in process industry,they are manufacturing MANGO pul

Calling strings from other php class
I have test1.php{
$string1;
$string2;
....
... //10 strings in this class <

Sign up to write
Sign up now if you have flare of writing..
Login   |   Register
Follow Us
Indyaspeak @ Facebook Indyaspeak @ Twitter Indyaspeak @ Pinterest RSS



Play Free Quiz and Win Cash