Ready to improve network connectivity? Watch this webinar to learn how SD-WANs and a one-click instant connect tool can boost provisions, deployment, and management of your cloud connection.
COURSE of the MONTH
13 days, 11 hours left to enrollBecome a Premium Member and unlock a new, free course in leading technologies each month.
Solved
Maximum size of an array
Posted on 2002-07-15
Hi
I'm building a page which uses arrays to display different content based on the page's url (dynamic pages).
However, it looks like these arrays will end up getting quite extensive, and I was wondering if this can cause problems or latency later on. In other words: is there a maximum size for arrays (or a point after which it will become too cumbersome for the server to handle properly)?
Thanks!
I'm building a page which uses arrays to display different content based on the page's url (dynamic pages).
However, it looks like these arrays will end up getting quite extensive, and I was wondering if this can cause problems or latency later on. In other words: is there a maximum size for arrays (or a point after which it will become too cumbersome for the server to handle properly)?
Thanks!
[X]
Welcome to Experts Exchange
Add your voice to the tech community where 5M+ people just like you are talking about what matters.
- Help others & share knowledge
- Earn cash & points
- Learn & ask questions
-
2
4 Comments
There probably is a limit, but if you are worried about handling too much info at once, try chopping it up.
Do your arrays hold data for ALL the pages? e.g. Say you have an array of page titles, only 1 title exists per page, so when you say show me the title for page 246, do you get that data from the array which contains all page titles?
If so, then every single page request will have to hold onto a LOT of junk (relavitely) data.
There are several ways you could limit the amount of data per page.
1 - Include files with the name being generated by the page request ...
<?php
$sFile = "inc{$_GET["pageIndex"]}.p
include $sFile;
?>
2 - Use a DB (much more efficient).
You COULD use the page with the arrays to physically generate the other pages. This is not sound as daft as it sounds.
You currently have 1 page with the arrays in. Maintaining this manually I would assume. Using the manually maintained page with all the arrays, use the arrays to create all the subsequent pages and store them on the server. You would need to have write access to the directory containing the pages. You would only need to re-generate the pages when you made a change to the page holding the arrays.
If the age holding the arrays is also dynamically generated, then instead of using the arrays, simply rely on the source data.
Maybe.
Richard.
Do your arrays hold data for ALL the pages? e.g. Say you have an array of page titles, only 1 title exists per page, so when you say show me the title for page 246, do you get that data from the array which contains all page titles?
If so, then every single page request will have to hold onto a LOT of junk (relavitely) data.
There are several ways you could limit the amount of data per page.
1 - Include files with the name being generated by the page request ...
<?php
$sFile = "inc{$_GET["pageIndex"]}.p
include $sFile;
?>
2 - Use a DB (much more efficient).
You COULD use the page with the arrays to physically generate the other pages. This is not sound as daft as it sounds.
You currently have 1 page with the arrays in. Maintaining this manually I would assume. Using the manually maintained page with all the arrays, use the arrays to create all the subsequent pages and store them on the server. You would need to have write access to the directory containing the pages. You would only need to re-generate the pages when you made a change to the page holding the arrays.
If the age holding the arrays is also dynamically generated, then instead of using the arrays, simply rely on the source data.
Maybe.
Richard.
It can be tempting to load A LOT of information into a single source file. This eases maintenance issues, but of course it means that every time that file is "include"d or "require"d PHP has to load and parse the whole thing.
You may want to consider alternatives that load smaller amounts of information, depending on the page to be displayed.
I.e. Rather than having something like...
<dynamic.php>
$page_info = array(
'home' => array(
'title' => 'Home Page',
'description' => 'This is my home page',
'style' => 'main.css'),
'sales' => array(
... etc
)
... consider using separate files ...
<dyn_home.php>
$title = 'Home Page';
$description' = 'This is my home page';
$style' = 'main.css';
<dyn_sales.php>
$title = 'Sales';
...
This will execute faster with less load on the server, and is still reasonably maintainable.
You may want to consider alternatives that load smaller amounts of information, depending on the page to be displayed.
I.e. Rather than having something like...
<dynamic.php>
$page_info = array(
'home' => array(
'title' => 'Home Page',
'description' => 'This is my home page',
'style' => 'main.css'),
'sales' => array(
... etc
)
... consider using separate files ...
<dyn_home.php>
$title = 'Home Page';
$description' = 'This is my home page';
$style' = 'main.css';
<dyn_sales.php>
$title = 'Sales';
...
This will execute faster with less load on the server, and is still reasonably maintainable.
Featured Post
Question has a verified solution.
If you are experiencing a similar issue, please ask a related question
Nothing in an HTTP request can be trusted, including HTTP headers and form data. A form token is a tool that can be used to guard against request forgeries (CSRF). This article shows an improved approach to form tokens, making it more difficult to…
This article discusses how to implement server side field validation and display customized error messages to the client.
The viewer will learn how to dynamically set the form action using jQuery.
The viewer will learn how to count occurrences of each item in an array.
Suggested Courses
Course of the Month13 days, 11 hours left to enroll
801 members asked questions and received personalized solutions in the past 7 days.
Join the community of 500,000 technology professionals and ask your questions.