# 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.

`EXP_GLOB` (int)
  Indicates that the pattern is a glob-style string pattern.
`EXP_EXACT` (int)
  Indicates that the pattern is an exact string.
`EXP_REGEXP` (int)
  Indicates that the pattern is a regexp-style string pattern.
`EXP_EOF` (int)
  Value, returned by expect_expectl(), when EOF is reached.
`EXP_TIMEOUT` (int)
  Value, returned by expect_expectl() upon timeout of seconds, specified in value of expect.timeout
`EXP_FULLBUFFER` (int)
  Value, returned by expect_expectl() if no pattern have been matched.