1. Projecting LAMP Server Resource Usage

I have a pretty good general idea of what kind of box can handle what, but Id love to draw together a breakdown of sorts to have clear figures to multiply and so forth. If were looking at ...

2. Limiting Multiple Usage of a User Account

Hello, I experience a particular problem related to multiple usage of one user account. We are currently offering a service and we would like to avoid many users to simultaneously use one ...

3. Good Coding Habits & Minimizing CPU Usage

Hey guys, I work for a site that is getting progressively more and more page views per day, lately something like 500,000. Pretty much every page performs SQL queries within our database. We have ...

4. Need some help

Hello All, I am a very amateur at PHP coding and have seemed to mess something up, I was trying to add another tab to my header and seemed to have caused a problem. This is whats reading ...

5. MYSQL: How best to select a column before looking for a string match?

I have a mysql database containing information about photos. Each row is something like so: Location|Photographer|Subject|Caption How do I most efficiently single out a particular column ...

6. PHP5 Debugging - Memory

Hey guys, Ive been trying to figure out how much memory my PHP script is using. I saw memory_get_usage() in the manual, and it says its active when memory_limit is active. However, when i ...

7. question on query delete by amount of time

Hi: I have written a mod tracking system, and all the data insert into database. However, I want to know that are there any query command i can delete the records by days, time, or amount ...

8. Limiting use of server resources???

Ive got a script that allows users to upload sets of images to my server and then resize them. They have a username/passwd account. Im guessing that this is quite a memory/processor intensive ...

9. Using PHP to control serial port equipment, bad idea?

I am currently running my home automation software on a windows based platform, but would like to migrate everything to a mini-itx box, which boots a customized, but extremely light weight, linux ...

10. using PEAR

Hello, I searched this forum to see if someone has an example usage.. Ive been to the pear site.. http://pear.php.net/manual/en/package.caching.cache-lite.intro.php I am having ...

11. initialisation of variables

If lets say in a common file to all your scripts you wish to initialise some common variables before there usage (as you should do) how would go about this and what would you initialize them to? If ...

12. Optimising PHP.ini

Ive got my PHP.ini set up for a high-performance system. Could anyone reccommend setting changes to get higher performance? Scripts will be using lots of CPU and there will be many hits. Code: [PHP] engine ...

13. Advice: my first class

Hi Ive tried writing a class of my own today for the first time and wanted to check Im doing it right. I suspect Im not. The class is for untainting data before using it in a MySQL query. ...

14. system() Command fails

PHP Code:  Hello people, Ive written a little command that works without the variables in it, but with them it fails. Howcome?  ...

15. CPU load problem on a Php/MySQL linksite

I got a CPU load problem on my Php/MySQL based Link site. Site gets 6000-10.000 unique visitor and 120.000-180.000 page hits. Its not too many traffic I think. After my hosting (Shared) complained ...

16. true == null but true !== null ????

Hey guys. Ive got a problem here that makes me feel like a huge idiot. Anways, I just got hired to check out the security of one companys PHP scripts. (Yes I get paid to hack its crazy). Anyways, ...

17. Help: md5() and password protection

Hi guys, Im using an md5() encryption/decryption function I found on php.net to secure user passwords (consisting of letters and numbers) in a database. However, it seems some characters ...

18. php4 object oriented class help

I have: 3 classes in this code attached: class dbConnection class User class Trainer extends User What I woudl like to acomplish is: a good objected oriented retrieval of user ...

19. Knowing Class Form validated

I found a class out there that creates an HTML form and "validates" the data entry. If I want to use this to enter data into my db, what do I use to check against? (Can you tell I am ...

20. Questions about rFastTemplate usage.

Hi - I dont know how popular the rFastTemplate class is, but its used for my sites engine. I did not make it, but am making significant changes. Right now a .php page reads like this Code: $tp ...