Php set configuration file

PHP Configuration Made Easy: A Comprehensive Guide to Set Up and Configure PHP Using a Config File

Learn how to set up and configure PHP using a config file with this comprehensive guide. Understand the PHP configuration file, configure PHP on Windows, use FPM for PHP configuration, and create a config file in PHP. Find the PHP config file, best practices, and common issues with PHP configuration.

• Understanding the PHP configuration file (php.ini)
• Configuring PHP on Windows
• How to create a config file in php
• Using FPM for PHP configuration
• Creating a config file in PHP
• Finding the PHP config file
• Best practices for PHP configuration
• Common issues with PHP configuration
• Other quick PHP configuration code samples
• Conclusion
• How to configure PHP settings?
• How to create a PHP configuration file?
• How to install and configuration PHP?
• Where do I find PHP config?

PHP is one of the most popular programming languages used for web development. It is an essential tool for developers to create dynamic websites and web applications. One of the key features of PHP is its ability to be customized using a configuration file. This post will provide a comprehensive guide on how to set up and configure PHP using a config file.

Understanding the PHP configuration file (php.ini)

The php.ini file is read when PHP starts up. It contains settings for modules enabled, email settings, and upload file size . To configure PHP settings, open the php.ini file in a text editor and search for the setting you want to change. Some default PHP settings include enable_safe_mode and register_globals.

When you make changes to the PHP configuration file , you must restart the web server for the changes to take effect. One way to check the current PHP configuration settings is to create a PHP file with the phpinfo() function. This function displays all the current PHP configuration settings on the server.

Configuring PHP on Windows

Windows users can modify configuration values on a per-directory basis using the Windows registry. The PHPRC system environment variable or the registry must be set to find the php.ini file. There are various ways to install and configure PHP on Windows, including downloading the PHP files, extracting the files, configuring PHP, adding php to the path environment variable , and testing a PHP file.

How to create a config file in php

How to create a config file in phpWe create a file named config.php, to connect to the Duration: 6:20

Using FPM for PHP configuration

FPM ( FastCGI Process Manager ) is an alternative PHP FastCGI implementation with some additional features that are useful for high load websites. FPM uses php.ini syntax for its configuration file. There are global php-fpm configuration files and pool configuration files.

The global php-fpm configuration file is used to define settings that apply to all pools. The pool configuration file is used to define settings for individual pools. Pools are used to manage groups of PHP processes that handle requests for a particular website or application.

Creating a config file in PHP

A simple way to create a config file in PHP is to create a config.php file that returns an array. The config.php file contains unique settings for a Form Tools installation. The wp-config.php file is a crucial file in WordPress installations that stores database information and configuration details.

The configuration file should be stored outside of the document root, to prevent unauthorized access to sensitive information. It is also important to ensure that the file permissions are set correctly to prevent unauthorized access.

Finding the PHP config file

The user may need to find the php config file (php.ini) in the root folder of their website or hosting plan. phpinfo() is commonly used to check configuration settings and variables on a given system. This function can also be used to find the location of the php.ini file.

Best practices for PHP configuration

Advantages of using a config file include the ability to easily modify and store configuration settings. Disadvantages of using a config file include the potential for security vulnerabilities if not properly secured. Tips for creating a secure config file include not storing sensitive information in the file and using encryption if necessary. best practices for configuring php include regularly updating PHP and following security guidelines.

Common issues with PHP configuration

common issues with php configuration include errors in the php.ini file and incompatibility issues with certain modules. Some phpList settings are only available by logging into the web server and editing the config.php file.

Other quick PHP configuration code samples

In Php as proof, how to create config file in php code sample

In Php , in particular, how to make a config file for php code example

In Php case in point, config file php code sample

 'localhost', 'username' => 'root', 'pass' => 'password', 'database' => 'db' );?> This allows you to use the object syntax when you include the php : $configs->host instead of $configs['host'].Also, if your app has configs you need on the client side (like for an Angular app), you can have this config.php file contain all your configs (centralized in one file instead of one for JavaScript and one for PHP). The trick would then be to have another PHP file that would echo only the client side info (to avoid showing info you don't want to show like database connection string). Call it say get_app_info.php :app_info);?>The above assuming your config.php contains an app_info parameter: 'localhost', 'username' => 'root', 'pass' => 'password', 'database' => 'db', 'app_info' => array( 'appName'=>"App Name", 'appURL'=> "http://yourURL/#/" ) );?> So your database's info stays on the server side, but your app info is accessible from your JavaScript, with for example a $http.get('get_app_info.php').then(. ); type of call.

In Php , config file php code sample

 'localhost', 'username' => 'root', 'pass' => 'password', 'database' => 'db' );?>

In Php case in point, php config file code example

In Php as proof, config in php code example

 catch(PDOException $e) < echo "Connection failed: " . $e->getMessage(); exit(); >$errors = ['result' =>'', 'email'=>'', 'password'=>'', 'login'=>'', 'signup'=>''];session_start();require('controllers/contacts-controller.php');require('controllers/auth-controller.php');?>

Conclusion

PHP configuration can be modified using a config file. The php.ini file is read when PHP starts up and contains settings for modules enabled, email settings, and upload file size. Windows users can modify configuration values on a per-directory basis using the Windows registry. FPM uses php.ini syntax for its configuration file, and there are global php-fpm configuration files and pool configuration files. Creating a config file in PHP is a simple way to store unique settings for an installation. Best practices for PHP configuration include regularly updating PHP and following security guidelines.

Источник

ini_set

Sets the value of the given configuration option. The configuration option will keep this new value during the script’s execution, and will be restored at the script’s ending.

Parameters

Not all the available options can be changed using ini_set() . There is a list of all available options in the appendix.

The new value for the option.

Return Values

Returns the old value on success, false on failure.

Changelog

Version	Description
8.1.0	value now accepts any scalar type (including null ). Previously, only string values were accepted.

Examples

Example #1 Setting an ini option

if (! ini_get ( ‘display_errors’ )) ini_set ( ‘display_errors’ , ‘1’ );
>

echo ini_get ( ‘display_errors’ );
?>

See Also

• get_cfg_var() — Gets the value of a PHP configuration option
• ini_get() — Gets the value of a configuration option
• ini_get_all() — Gets all configuration options
• ini_restore() — Restores the value of a configuration option
• How to change configuration settings

User Contributed Notes 20 notes

I have experienced on some systems that ini_set() will fail and return a false, when trying to set a setting that was set inside php.ini inside a per-host setting. Beware of this.

[[[Editors note: Yes, this is very true. Same with
register_globals, magic_quotes_gpc and others.
]]]

Many settings, although they do get set, have no influence in your script. like upload_max_filesize will get set but uploaded files are already passed to your PHP script before the settings are changed.

Also other settings, set by ini_set(), may be to late because of this (post_max_size etc.).
beware, try settings thru php.ini or .htaccess.

When checking for the success of ini_set(), keep in mind that it will return the OLD value upon success — which may have been «0». Therefore you cannot just compare the return value — you have to check for «identity»:

// This will NOT determine the success of ini_set(), instead
// it only tests if the old value had been equivalent to false
if ( ! ini_set ( ‘display_errors’ , ‘1’ ) )
throw new \ Exception ( ‘Unable to set display_errors.’ );

// This is the CORRECT way to determine success
if ( ini_set ( ‘display_errors’ , ‘1’ ) === false )
throw new \ Exception ( ‘Unable to set display_errors.’ );

?>

This explains reported situations where ini_set() «always» seems to fail!

set PHP_INI_PERDIR settings in a .htaccess file with ‘php_flag’ like this:

php_flag register_globals off
php_flag magic_quotes_gpc on

When your ISP does not allow you to add the default include directories — it might be useful to extend the ‘include_path’ variable:

If it’s not your server and therefore you want to hide the data in your session variables from other users, it�s very useful to set the session.save_handler in your scripts to shared memory with:

Remember: You have to set it in every script that uses the session variables BEFORE «session_start()» or php won’t find them.

Be careful with setting an output_handler, as you can’t use ini_set() to change it. *sigh*

In my php.ini I have this for my web pages (and I want it):

But this causes my command line scripts to not show output until the very end.

#!/usr/bin/php -q
ini_set ( ‘output_handler’ , ‘mb_output_handler’ );
echo «\noutput_handler => » . ini_get ( ‘output_handler’ ) . «\n» ;
?>

root@# ./myscript.php
output_handler => ob_gzhandler

Apparently (acording to Richard Lynch):

> TOO LATE!
> The ob_start() has already kicked in by this point.
> ob_flush() until there are no more buffers.

While this doesn’t belong in the manual, it should be useful for people looking on this page for zend_optimizer.* ini options, which are commonly installed:

Information on the «zend_optimizer.optimization_level» and «zend_optimizer.enable_loader» options is available at:

Careful — in some cases, when setting zlib.output_compression to «On» via ini_set, PHP won’t send the Content-type header and browsers will garble the output. Set it to the desired buffer size instead, which sends the correct header:

ini_set ( «zlib.output_compression» , 4096 );
?>

[[[Editors note: Just because you’re able to set something
doesn’t mean it will work as expected. Depends on the
setting. For example. setting register_globals at
runtime will be of little use as its job has already
been completed by the time it reaches your script.
]]]

When a setting can not be changed in a user script, the return value of ini_set is «empty», not «false» as you may expect.
If you check in your script for return value is «false» the script will continue processing, although the setting has not been set.
The boolean return value is used for settings that can be changed in a script. Otherwise the empty value is returned.
To test for both error conditions use:

if (empty( $blnResult ) or (! $blnResult )) <
echo «setting cannot be set» ;
exit;
>
?>

if u receive an Error with generic like :
Maximum execution time of 30 seconds exceeded

if u set ini_set(max_execution_time, 300);
your problem will be solved
pls note that the 300 , is 300 seconds , which means 5 minute you can set another value !

Источник