Different types of data take up different amounts of memory and may be treated differently when they are manipulated in a script. Some programming languages therefore demand that the programmer declare in advance which type of data a variable will contain. By contrast, PHP is loosely typed, meaning that it will determine the data type at the time data is assigned to each variable. ادامهی خواندن
After you have compiled or installed PHP, you can still change its behavior with the php.ini file. On Linux/UNIX systems, the default location for this file is /usr/local/php/lib, or the lib subdirectory of the PHP installation location you used at configuration time. On a Windows system, this file should be in the PHP directory or another directory as specified by the value of PHPIniDir in the Apache httpd.conf file. ادامهی خواندن
