PHP method to prevent high CPU usage in while true loop

The content of this article is about how to prevent excessive CPU usage in while true loops in PHP. Friends in need can refer to

A simple example

For example It can be used when using PHP and redis for message queues. It can be modified according to the actual application scenario

test.php
<?php
$i = 0;
while (true) {
    $i++;
    if ( $i%30==0 ){
        sleep(1);
    }
    echo $i;
}

<?php
$i = 0;
while (true) {
    $i++;
    if ( $i%30==0 ){
        sleep(1);
    }
    echo $i;
}

Execution: php test.php

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