# 定義済み定数

以下の定数が定義されています。 この関数の拡張モジュールが PHP 組み込みでコンパイルされているか、 実行時に動的にロードされている場合のみ使用可能です。

`PTHREADS_INHERIT_ALL` (integer)
  The default options for all Threads, causes pthreads to copy the environment when new Threads are started
`PTHREADS_INHERIT_NONE` (integer)
  Do not inherit anything when new Threads are started
`PTHREADS_INHERIT_INI` (integer)
  Inherit INI entries when new Threads are started
`PTHREADS_INHERIT_CONSTANTS` (integer)
  Inherit user declared constants when new Threads are started
`PTHREADS_INHERIT_CLASSES` (integer)
  Inherit user declared classes when new Threads are started
`PTHREADS_INHERIT_FUNCTIONS` (integer)
  Inherit user declared functions when new Threads are started
`PTHREADS_INHERIT_INCLUDES` (integer)
  Inherit included file information when new Threads are started
`PTHREADS_INHERIT_COMMENTS` (integer)
  Inherit all comments when new Threads are started
`PTHREADS_ALLOW_HEADERS` (integer)
  Allow new Threads to send headers to standard output (normally prohibited)