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

Select Lists into MYSQL
Hello All, I am new to PHP @ 1 week. So borrowing code anywhere I can. I am making progress, but h

Need help-Error istream header declaration
Hi Everyone ,

I am having issue with istream declaration. I am new to C programming.
can a

problem with script manager
Hi iam using Net.2005.I have created ajax enabledwebsite.i have master page in which i have script m

Code Help.. If txt input box empty search X instead..
I am having a problem with my search script. At current it will simply search by a selected date whi

Compare user input to flat file data
Help...Am a complete newbie to programming so my code is prolly quite long. Am trying to verify a us

Syntax error
hi im having a little trobble with this script
-------------------------------------------------

Format String help
I have a textbox where a person enters an application number. the application number is 10 characte

Problem Dereferencing
With these types and tables:

CREATE TYPE MANAGER AS OBJECT (
MGR_ID INTEGER,

Error when call dll from oracle
Hi all, please help me!

I have dll write C language, I want call it from oracle procedur

Creating web pages by php
Hello again,
I was just wondering us there a way to use a php script to create a new web page. I

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