Resource Types
Misc. Functions
Misc.
PHP Manual

# Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

`CONNECTION_ABORTED` (integer)
`CONNECTION_NORMAL` (integer)
`CONNECTION_TIMEOUT` (integer)
`__COMPILER_HALT_OFFSET__` (integer)
  Added in PHP 5.1.

Resource Types
Misc. Functions
Misc.
PHP Manual