Why is this function returning a false value when it shouldn't be??

Posted on 16th Feb 2014 07:03 pm by admin

This is in an include file. I want it to check a value in an html form and see if it's just white space, is numbers, is empty etc.

Code: (text) [Select]<?php
function checkString($stringFieldName,$_GET){
$output="n<p> ";
$validate=true;
if(array_key_exists($stringFieldName,$_GET))
{
//trim any whitespace from values
$string=trim($_GET[$stringFieldName]);
//check if string value is empty
if(empty($string)){
$output.="nYou haven't entered any data in string<br />";
$validate=false;
}
if(is_numeric($string)){
$validate=false;
$output.="You have entered a number instead of text";
}
//if they have deleted values from url
}else{
$output.="nYou have deleted the characters from the urln";
$validate=false;
}
echo $output."n</p>";
}
I am using it in a php file, the code is here:
Code: (text) [Select]
<?php
echo "n<p>";
include 'validateText&Number.inc';
checkString("surname",$_GET);
if ($validate==false){
echo "nYou did not enter the name correctly.";
}
else.................
{When I type in actual text it tells me I have not entered name correctly which therefore means $validate must be false. I don't know how though it can be set to false because if the field just contains text, it isn't satisfying any of the conditions that lead to $validate=false.

Please help!! Oh I'm a php newbie btw

Your Answer:

Login to answer

Other forums

having a small php error tha deals with the 'foreach'
Last night i was working on a script for a cart and it seemed to working good, until this morning. F

Comment Mod System Effects all rows...
Sorry if its confusing but here is whats going on: I have a table in a database called comments and

ereg_replace in Wordpress
Heya - so I'm working on this site: http://world-of-smiles.theportlandco.com/new-patients

The

remove a ; from emails in textarea
Code: <?php

session_start();

$database_host = "localhost&qu

Legal Issues for SAP ERP o ERP in general
Hi experts,

Can someone please help me finding some documentation about legal issues tha

Warning: session_start() headers already sent error - Driving me Nuts!
I am trying my sister in laws site and I keep getting an error with my coding. I am more of a design

How to make URL loads only on login
On my page, when a user login he's redirects to user_home.php. I made it also to open the chat scree

apart from cron
I need to run a php file every one hour. Is there any other solution apart from cron job?

Binding 2 UDP sockets on same port, connected to different destinations, 1 receives
Hello,
My application wants to send/recv data to 2 different UDP ports on a remote computer, us

login and redirect
hello! can someone help me.. can you give me an idea.. I want to make a login page and redirects it