微时间在php中的工作原理

PHP mico time，我想使用microtime处理我的应用程序，我认为PHP5的脚本示例非常简单

<?php
// Put this at the start of your script
$time_start = microtime(true);

// This is where your script should be executing,
// but instead, we sleep for a while
usleep(100);

// Calculation at the end of the script
$time_end = microtime(true);
$time = $time_end - $time_start;

// Do something with the results
echo "Did nothing in $time seconds\n";
?>

---

我认为PHP5的脚本示例非常简单

<?php
// Put this at the start of your script
$time_start = microtime(true);

// This is where your script should be executing,
// but instead, we sleep for a while
usleep(100);

// Calculation at the end of the script
$time_end = microtime(true);
$time = $time_end - $time_start;

// Do something with the results
echo "Did nothing in $time seconds\n";
?>

处理我的应用程序是什么意思？我认为psr123是在谈论应用程序评测。XDebug将在调试和评测应用程序方面为您提供很多帮助。什么是处理我的应用程序？我认为psr123是在谈论应用程序评测。XDebug将在调试和分析应用程序方面为您提供很大帮助。