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

uploading video files into mysql in php
hi,
I have the video files which i have to upload into mysql db. along with creating thumbnails f

Cant display mysql data
Hey all,

I am learning php and my first goal is to create a simple CMS. At the moment I am st

Navigation include for all site directories
Hi,

I need a navigation include that can deal with directories at different levels on a site.

problem with php mysql query
Hi guy's...

I'm totally lost here..because don't have any idea how to make a query for grab r

Looking for help reading a .txt or .ini file and outputting the info.
I have a file called Info.ini and It has the following info:
Code: [General]
Online=0
I wou

[function.file]: failed to open stream: No such file or directory
Okay I wrote this little script to upload a csv file that is located on my webhosts server to a mysq

At max how many columns is advisable to create in a table/view
Hi All,
I have two transaction table from which i want to create a simple view or material

help, header() is not working!
Hello, I have this code:


<?php

/**
* @author samoi
* @copyright 200

Displaying Site Logo/Icon on a Title tag
really need some help out here. I want to insert a Logo/Icon just like the one close to the "PH

max function question
Hi All
Ihave a table that holds shipment numbers and dates like this

select * from

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