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by: christian9997 |
last post by:
Hi
I don't seem to understand the way isset works.
Here is some Javascript code that makes a call using PHP:
// USER CAME BACK TO CHANGE LANGUAGE
if (<?echo isset($_REQUEST)?>) {
alert("WORKS1");
desiredLanguage = "<?echo $_REQUEST?>";
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by: wouter |
last post by:
hey hi.....
I wanna make a switch wich does this:
if pagid is set do A,
if catid is set do B,
if projectid is set do C,
else do D.
So i was thinking something like this:
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by: sathyashrayan |
last post by:
Dear group,
My question may be novice. I have seen codes where the isset() is
used to test weather a user's session ($_SESSION) is set before
entering a page. A kind of direct access to a page is not possible.
But I tested with the "input type="button" and the clicking of the
event is not happened. Can any one tell me why. The code:
<html>
<body>
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by: yawnmoth |
last post by:
<?php
$var = 'test';
echo isset($var) ? 'true' : 'false';
echo '<br>';
echo isset($var) ? 'true' : 'false';
?>
Why does that result in this output?:
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by: Giovanni R. |
last post by:
Take a look at this code (you can execute it):
error_reporting(E_ALL);
function byVal( $v) {}
function byRef(&$v) {}
print '<pre>';
byVal ($first); // gives a notice
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by: arundelo |
last post by:
Is there a way to tell whether accessing a variable will
result in an "Undefined variable" E_NOTICE? isset() almost
does this, but it also returns false if a variable is set to
null:
$SetNonNull = 0;
$SetNull = null;
var_dump(isset($SetNonNull)); // bool(true)
$Junk = $SetNonNull; // No error, as predicted by isset().
var_dump(isset($NotSet)); // bool(false)
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by: Simon Dean |
last post by:
Im taking Im doing something stupid here? I thought it was clever...
just learned a little more about isset.
$a = (isset($_GET)) ? $_GET : (isset($_POST)) ?
$_POST : "";
I guess you can see what try each successive one in turn as we can
alternate between the two.
But it doesn't seem to be working.
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by: major |
last post by:
The following code processes a blank field as though it has some value
and proceeds as though it was set to some value.
Apparently isset() is not working, because it thinks that a blank text
field is set to something.
Please let me know how to use isset() correctly.
Thanks ahead.
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by: Michael Fesser |
last post by:
..oO(Daniel Molina Wegener)
They have side effects or don't work properly. If the variable or
element you want to check doesn't exist, then
* the first and fourth will create it and set it to NULL
* the second and third will throw an E_NOTICE error
Micha
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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