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

Retrieving the 25 most recently added entries from all tables in a MySQL databas
Hello,

The code below works great. It creates a table that shows the 25 most recently added t

Help Optimizing code
Good Morning,

I wrote a small import function for a website of mine and I know there has to b

Deleted Delivery but material wont return
We deleted a delivery but the material its still pending.

We made a reverse goods movemen

Can't seem to capture a variable in a chained select
I'm *this* close to having a chained select running but for some reason it doesn't seem to be pickin

login from external site
Hi my new experience begins, Now what i am trying to do is i make three pages, login.php logout.php

SCRIPT ERROR
Here is the CONTACT FORM I made for our website:

<form id="form1" name="

Inserting multiple records from single form
I've found a number of threads that deal with this issue, but I'm new to php and coding language so

button help
i originally had this but realised it is much easier to have a button.

Code: <?php

Limiting uploaded file type
Hi. First post here
I am working on a simple upload script, and I need it to limit the allowed f

Multiple if statements
Ok so seems basic but for some reason I'm not doing it right. What I want is to be able to have 2 se

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