php

How to force page not to be cached in PHP?

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I have a page, index.php, that shows information based on a mysql db. There are forms on it, and the action for the forms is set to a separate page called process.php. Process.php does all the database CRUD stuff, then uses

header("Location: /webadmin/email/index.php");

to send the user back to the original page.

This seems to be working fine, except for the fact that the original index page doesn't always reflect the changes made by process.php. I assume that the page is being cached, because if I do a refresh (Ctrl + F5), the page will show the latest data.

How can I prevent this page from being cached? I have tried what the PHP page for header() says, but it doesn't seem to work. The Cache-Control and Expires options seem to have no effect at all - the page is still being cached.

Update

Ok, I was partially wrong. Apparently, the following does work in IE:

<?php header("Cache-Control: no-cache, must-revalidate");

However, it is definitely NOT working in FF, which is still showing a cached version. Any ideas on why this is, and how I can make it stop caching?

Answers

Make all browsers fall in line:

header("Location: /webadmin/email/index.php?r=".mt_rand(0, 9999999));

It's not pretty, but it fits the question asked: "How to force..."

Monday, August 15, 2022

n.itzhaky

Here's what worked best for me when trying to script this (in case anyone else comes across this like I did):

$ pecl -d php_suffix=5.6 install <package>
$ pecl uninstall -r <package>

$ pecl -d php_suffix=7.0 install <package>
$ pecl uninstall -r <package>

$ pecl -d php_suffix=7.1 install <package>
$ pecl uninstall -r <package>

The -d php_suffix=<version> piece allows you to set config values at run time vs pre-setting them with pecl config-set. The uninstall -r bit does not actually uninstall it (from the docs):

vagrant@homestead:~$ pecl help uninstall
pecl uninstall [options] [channel/]<package> ...
Uninstalls one or more PEAR packages.  More than one package may be
specified at once.  Prefix with channel name to uninstall from a
channel not in your default channel (pecl.php.net)

Options:
  ...
  -r, --register-only
        do not remove files, only register the packages as not installed
  ...

The uninstall line is necessary otherwise installing it will remove any previously installed version, even if it was for a different PHP version (ex: Installing an extension for PHP 7.0 would remove the 5.6 version if the package was still registered as installed).

Monday, December 12, 2022

shankar_damodaran

As @alombarte said here Just type in Terminal

cd /usr/share/locale
sudo cp -R es_ES es_CO

check by executing locale -a OR

locale -a | grep es_

Sunday, October 16, 2022

graham_borland

To force the installation of this package, I added the following to the require element of composer.json:

"cartalyst/sentry":"dev-feature/laravel-5 as 2.1.4"

Below is the link from where I found this suggestion:

http://vvv.tobiassjosten.net/php/have-composer-use-development-branches/

It will not work from the command line, must be through composer.json. That I don't know why.

Update:

I believe I was wrong in my last statement above, actually something like the following will work from the command line:

composer require "codeception/codeception":"2.1.0-rc1 as 2.0.9"

Saturday, September 17, 2022

tejusadiga2004

Never used any of those, but they look interesting..

Take a look at Gearman as well.. more overhead in systems like these but you get other cool stuff :) Guess it depends on your needs ..

Friday, November 11, 2022

the_falvert

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