EventConfig
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EventConfig::requireFeatures

(PECL event >= 1.2.6-beta)

EventConfig::requireFeaturesEnters a required event method feature that the application demands

说明

public bool EventConfig::requireFeatures ( int $feature )

Enters a required event method feature that the application demands

参数

feature

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

返回值

范例

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");
}
?>

以上例程的输出类似于:

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

参见


EventConfig
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