(PECL openal >= 0.1.0)
openal_buffer_get — Retrieve an OpenAL buffer property
$buffer, int $property): int|falsebufferAn Open AL(Buffer) resource (previously created by openal_buffer_create()).
property
Specific property, one of:
AL_FREQUENCY,
AL_BITS,
AL_CHANNELS 和
AL_SIZE.
Returns an integer value appropriate to the property
requested 或者在失敗時(shí)返回 false.