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

Odd or Even
Inside of a while loop I need to echo several rows of info...easy enough.

In the loop (for th

Calling All PHPFREAKS Blackberry Users
Are you a member of PHPFreaks and have a blackberry? Well RIM just recently released Blackberry Mes

ctype() validation - allowing illegal characters
Hello,
I use ctype() to filter and validate a user form. However, I am trying to allow certain c

session variable problem
Session variable is not working in Fire fox i am getting null value but it is working fine in IE.

Storing Values taken from a DB...
Using this code it will generate a short list from my database

<?php
mysql_connect

Converting numbers to months
The porgram works -just need the last function(month_convert_ to convert numbers to months -thanks.

j1inmis Ouput layout changes
Hi,

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

rename the file
File.txt

Code: ***DOCUMENT***
..DN:
000044255
..CB:
..SN:
..PY:
2009
..E

admin with my register system?
Hey i wana make it so i can make a admin level on my register system , I'm kinda new to php to im no

Supress some serveroutput but not all
Hi,

I have a script I'm working on that uses plsql to create and RMAN script, this uses d

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