update : 2015.11.03
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Enters a required event method feature that the application demands
EventConfig
PHP Manual

EventConfig::requireFeatures

(PECL event >= 1.2.6-beta)

EventConfig::requireFeatures — Enters a required event method feature that the application demands

설명

public bool EventConfig::requireFeatures ( int $feature )

Enters a required event method feature that the application demands

인수

feature

Bitmask of required features. See EventConfig::FEATURE_* constants

반환값

예제

Example #1 EventConfig::requireFeatures() example

<?php
$cfg = new EventConfig();

// Create event_base associated with the config
$base = new EventBase($cfg);

// Require FDS feature
if ($cfg->requireFeatures(EventConfig::FEATURE_FDS)) {
    echo "FDS feature is now requried\n";

    $base = new EventBase($cfg);
    ($base->getFeatures() & EventConfig::FEATURE_FDS)
        and print("FDS - arbitrary file descriptor types, and not just sockets\n");
}
?>

위 예제의 출력 예시:

FDS feature is now requried
FDS - arbitrary file descriptor types, and not just sockets

참고

EventConfig
PHP Manual