Hi
I'm trying to build a simple, one-dimensional array of prices, where the key
to each element is the product code.
So I start by executing a select query "SELECT Code, Price FROM Products",
and the results are returned in a two-dimensional array, $data, which I can
loop through like this:
while (list(, $value) = each($data))
{
$code = $value[0];
$price = $value[1];
I would have thought I could build my array here by writing something like:
$command = "\$arr['$code'] = $price;";
exec($command);
But this doesn't work.
Can anyone explain? 3 1343
Captain Nemo wrote: Hi
I'm trying to build a simple, one-dimensional array of prices, where the key to each element is the product code.
So I start by executing a select query "SELECT Code, Price FROM Products", and the results are returned in a two-dimensional array, $data, which I can loop through like this:
while (list(, $value) = each($data)) { $code = $value[0]; $price = $value[1];
I would have thought I could build my array here by writing something like:
$command = "\$arr['$code'] = $price;"; exec($command);
But this doesn't work.
Can anyone explain?
there are some errors in your code..
if you want an array like this
array(
'code' => 'price'
)
you can do something like this..
while(list($cod e, $value) = mysql_fetch_arr ay($data))
$product[$code] = $value;
-- www.iuz-lab.info
Panic over!
I was confusing the exec() function with the eval() function.
while (list(, $value) = each($data))
{
$code = $value[0];
$price = $value[1];
/*
$command = "\$arr['$code'] = $price;"; // I belive you
// need \ before all $s
exec($command); // you want eval() here
*/
// wouldn't this be a bit more concise:
$arr[$code] = $price; // why all the command and eval hubbaabaloo?
}
or how about this:
foreach ( $data as $values )
{
$arr[$values[0]] = $values[1];
// or if you used mysql_fetch_ass oc or mysql_fetch_arr ay:
// $arr[$values['Code']] = $values['Price'];
}
"Captain Nemo" <Ca*****@NoSpam .com> wrote in message news:<Hj******* *********@text. news.blueyonder .co.uk>... Hi
I'm trying to build a simple, one-dimensional array of prices, where the key to each element is the product code.
So I start by executing a select query "SELECT Code, Price FROM Products", and the results are returned in a two-dimensional array, $data, which I can loop through like this:
while (list(, $value) = each($data)) { $code = $value[0]; $price = $value[1];
I would have thought I could build my array here by writing something like:
$command = "\$arr['$code'] = $price;"; exec($command);
But this doesn't work.
Can anyone explain? This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
by: Canon EOS |
last post by:
Hi,
I am really new in .net and pocket PC development.
My background are purely C/C++/VC++. Have developed on Mobile Java for a
year and felt completely insecure with it because all codes can easily
uncompiled.
And it is why I am trying on .net for smartphone and PocketPC devices.
|
by: Hal Vaughan |
last post by:
I'm self taught and most of what I've been working on for the past several
years has been entirely in Perl and Java. I've noticed that I can code
about 5 times faster in Perl than Java, in part because I feel like
whenever I want to do something in Java, I have to create an object, do a
few preperatory things, then do what I need, but in Perl, I just call the
routine.
Java, however, does much better at cross platform apps, especially if...
|
by: Ghislain Tanguay |
last post by:
I have a compiled vb.net app and I want to give the user a choice to launch
it from the start line command and pass it a parameter or not. How can I do
that in my code? Is it possible?
Ex. : MyApp.exe "Go"
|
by: Martin Bootsma |
last post by:
I have a C question, which looks very easy, but no one here seems to
know an easy answer.
I have a function "powell" (from Numerical Recipes) which takes an
argument of the type
"double (*f)(float)"
But I want to be able to pass a
|
by: NevilleDNZ |
last post by:
Hi,
Apologies first as I am not a unicode expert.... indeed I the details
probably totally elude me. Not withstanding: how can I convert a
binary string containing UTF-8 binary into a python unicode string?
cutdown example:
$ cat ./uc.py
#!/usr/bin/env python
imported="\304\246\311\231\316\257\316\271\303\222
| |
by: cjbrx3115 |
last post by:
Hey everyone,
I just bought a new Windows Vista (Home Premium) computer. My old computer, a Windows XP Professional, had all of my old documents, spreadsheets, etc. I was planing on using the Easy Transfer on my new machine, and using an Ethernet cable to transfer the files. When I launched the Windows Vista Easy Transfer, I went through the process and followed all the directions. But when I had to run the program on my old computer, when I...
|
by: Ben |
last post by:
I'm looking for a web application framework with a good interface to
PostgreSQL.
The app I'm developing is relatively simple, but I'm new to coding, so it
needs to be easy.
What I'm making is a wiki-like system that could be thought of as similar
to MediaWiki, but with each word editable separately - ie. edit locks
would be one word at a time.
|
by: Kevin Walzer |
last post by:
From the introduction to PyObjC, the Python-Objective-C bridge on Mac OS X:
"As described in Objective-C for PyObjC users the creation of
Objective-C objects is a two-stage process. To initialize objects, first
call a class method to allocate the memory (typically alloc), and then
call an initializer (typically starts with init). Some classes have
class methods which perform this behind the scenes, especially classes
that create cached,...
|
by: Dr. Colombes |
last post by:
Is there an easy scientific graphics (plotting) package for Python
2.5.1 running on Ubuntu Linux 7.1 ("Gutsy Gibbon")?
A few years ago I used PyLab (a MatLab-like plotting module for
Python) on a Windows machine, but I don't know if there is a similar
easy-to-install-and-use Python 2.5.1-compatible graphics package for
Ubuntu Linux 7.1?
Thanks for any suggestions.
|
by: Grant |
last post by:
I've seen a couple of articles on the internet that VB.NET applications
can be decompiled very easy. For those who have had experience with
this, is it true? What steps can be taken to avoid this? I am using
VB.NET Express but am willing to buy something (within reason) to
prevent easy decompiling. Any suggestions are much appreciated.
|
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,...
| |
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
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,...
|
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...
|
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...
|
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...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
| |
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
|
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...
| | |