PHP Tutorials - Herong's Tutorial Examples - v5.17, by Herong Yang
php.ini - PHP Runtime Configuration
This section describes the PHP runtime configuration file, php.ini.
PHP runtime behavior can be controlled by a runtime configuration file called php.ini in the \php folder. The PHP installation package provides 2 versions of php.ini:
php.ini-development - More secure and better performance php.ini-production - More verbose in error messages
Since we are running PHP on a local machine to learn the PHP language, we should use the php.ini-development version. So let's copy php.ini-development to php.ini:
>copy \php\php.ini-development \php\php.ini 1 file(s) copied. >type \php\php.ini | more [PHP] ;;;;;;;;;;;;;;;;;;; ; About php.ini ; ;;;;;;;;;;;;;;;;;;; ; PHP's initialization file, generally called php.ini, is responsible ; for configuring many of the aspects of PHP's behavior. ; ... ; Name for user-defined php.ini files. Default is ".user.ini" ;user_ini.filename = ".user.ini" ; To disable this feature set this option to empty value ;user_ini.filename = ; TTL for user-defined php.ini files (time-to-live) in seconds. ; Default is 300 seconds (5 minutes) ;user_ini.cache_ttl = 300 ; Enable the PHP scripting language engine under Apache. engine = On ...
As you can see the php.ini file is very easy to use. The ";" character at the beginning of the line indicates a comment line. Configuration settings are provided in the format of "name = value". The default version of php.ini comes with lots of comments to help you understaning what is the meaning of each setting.
For example, if I want to set a default timezone in runtime environment, I can edit php.ini and change the "date.timezone" setting:
>edit \php\php.ini ; Defines the default timezone used by the date functions date.timezone = Europe/Paris
Now the PHP engine will be running with Europe/Paris as the default timezone.
Table of Contents
►Introduction and Installation of PHP
Downloading and Installing PHP 7.3 for Windows
"php -help" - Command Line Options
"php -i" - PHP Engine Information
►php.ini - PHP Runtime Configuration
Hello.php - My First PHP Script
"php -a" - PHP Interactive Shell
Downloading and Installing PHP Documentation
PHP Data Types and Data Literals
Variables, References, and Constants
Expressions, Operations and Type Conversions
Conditional Statements - "if" and "switch"
Loop Statements - "while", "for", and "do ... while"
Function Declaration, Arguments, and Return Values
Interface with Operating System
Introduction of Class and Object
Integrating PHP with Apache Web Server
Retrieving Information from HTTP Requests
Creating and Managing Sessions in PHP Scripts
Sending and Receiving Cookies in PHP Scripts
Controlling HTTP Response Header Lines in PHP Scripts
MySQL Server Connection and Access Functions
Functions to Manage Directories, Files and Images
SOAP Extension Function and Calling Web Services
SOAP Server Functions and Examples
Localization Overview of Web Applications
Using Non-ASCII Characters in HTML Documents
Using Non-ASCII Characters as PHP Script String Literals
Receiving Non-ASCII Characters from Input Forms
"mbstring" Extension and Non-ASCII Encoding Management
Managing Non-ASCII Character Strings with MySQL Servers
Parsing and Managing HTML Documents
Configuring and Sending Out Emails
Managing PHP Engine and Modules on macOS