How does PHP monitor whether the redis queue has a value in the background and execute the script if there is a value?
How does PHP monitor whether the redis queue has a value in the background and execute the script if there is a value?
<code class="php">$idle = 0;
$maxWait = 10;
$interval = 50; //50ms
while(true) {
if($redis->lLen() > 0 ) {
$idle = 0;
//doing some things
continue;
}
//这里很重要
usleep($interval * ($idle % $maxWait));
$idle++;
}</code>
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