Returns bitmask of features supported

# EventBase::getFeatures

(PECL event >= 1.2.6-beta)

EventBase::getFeatures — Returns bitmask of features supported

### 説明

public EventBase::getFeatures ( void ) : int

Returns bitmask of features supported.

### パラメータ

この関数にはパラメータはありません。

### 返り値

Returns integer representing a bitmask of supported features. See EventConfig::FEATURE_* constants .

### 例

例1 EventBase::getFeatures() example

`<?php
// Avoiding "select" method
$cfg = new EventConfig();
if ($cfg->avoidMethod("select")) {
echo "`select' method avoided\n";
}
$base = new EventBase($cfg);
echo "Features:\n";
$features = $base->getFeatures();
($features & EventConfig::FEATURE_ET) and print("ET - edge-triggered IO\n");
($features & EventConfig::FEATURE_O1) and print("O1 - O(1) operation for adding/deletting events\n");
($features & EventConfig::FEATURE_FDS) and print("FDS - arbitrary file descriptor types, and not just sockets\n");
?>`

### 参考

- EventBase::getMethod() - Returns event method in use
- EventConfig