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

PHP4 to PHP5 Conversion
Hi Everyone,

I am working on a site that is built up on PHP4 and each page is being started f

Unifying logins of two different scripts
I have two different game scripts which I want to embed on my own site. The problem is I don't want

Can I use a loop
Hi buddies!

Once again with my doubts here.

Right now I am using this sql stat

Matchcode in ALV change header column
Hello everyone,

I am working in an SAP system that is currently in upgrade and conversion

php include email form with attachment
I have had no luck with finding a email form all over the Internet for various reasons. Some insecur

Adding delete feature to my forum
Hello I am currently trying to add a delete feature to my forum. I believe I have everything built r

php wont update my db
hello,

sorry for posting in mysql forum but i dont know where exactly is the problem but here

Oracle Connectivity
Hi Every One,

Can we access SAP from oracle database.If it possible then please spec

Sending a hyperlink through mail
HI all,
I am sending a mail to outlook mailbox of a user using FM SO_NEW_DOCUMENT_ATT_S

Writting a script to arrange images........ need some help
Ok so here is the link

http://hmtotc.com/dev/projects/vrassociates/jeweler_dev/admin/index.ph

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