(PHP 5 >= 5.0.0, PHP 7) Return the key of the current element

Examples: Creating a copy of an object with fully replicated properties is not always the wanted behavior. A good

(PHP 5 >= 5.1.0, PHP 7) Gets the exception severity

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

(PHP 4, PHP 5, PHP 7) Equivalent to exit

FTP context option listing Context options for ftp:// and ftps:// transports.

(No version information available, might only be in Git) Gets the stack trace

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

Examples: Pseudo code to demonstrate function uses A function may be defined

(PHP 4, PHP 5, PHP 7) Tells what the user's browser is capable of