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

MySQL Does not UPDATE- SQLString Problem
vb Syntax (Toggle Plain Text) 1. SQL = "UPDATE sampletable SET column1 = 'C1sample1'"

Auto install
Hi I have a directory lets say "apps" that I then have more folders ie "email",

Points for Wiki contribution
Hi everyone,

I want to know how long does it take for the moderator to award points for a

Retreiving objects from Sessions
Hi all,

I am getting really frustrated with storing and retreiving objects from a session. Bu

Array help
Hello i got this code to fetch data from database but it is not working it displays
7
Array

finding key position of specified value in multi-dimensional array
Code: $openedfile = fopen($tfc_file4, "r");
$rc = 1;
while(!feof($openedfile))
{<

j1inmis Ouput layout changes
Hi,

Can anybody tell how can j1inmis output layout can be changed so that vendor names ge

Is it possible to stop reservation creation in PM Order?
Hi All,

Is it possible to stop reservation creation in PM Order?

Thanks in adv

Code clarification
Hi

In the following code what could be the "search_print()" and where it could be

Help with forum quoting?
Hi im working on a forum and I have alomost finished it but i want a user quote system like twitter

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