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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
<?php
echo time(), " сек\n";
list($usec, $sec) = explode(" ", microtime());
echo $sec, round($usec*1000), " мсек\n";
sleep(5);
list($usec, $sec) = explode(" ", microtime());
echo $sec, round($usec*1000), " мсек\n";