(PHP 4, PHP 5, PHP 7) Examples:

(PHP 5 >= 5.1.3, PHP 7) Gets system load average

(PHP 4 >= 4.1.0, PHP 5, PHP 7) HTTP Request variables

(PHP 4, PHP 5, PHP 7) Examples:

(PHP 5 >= 5.3.0, PHP 7) Examples:

(PHP 5 >= 5.5.0, PHP 7) Resume execution of the generator

Examples: Autoload example Note:

Examples: To specify a

Examples: Logical operators illustrated The reason for the two different variations