Detailed explanation of the definition and usage examples of the statistical word count function implemented in PHP

This article mainly introduces the definition and usage of the statistical word count function implemented in PHP, and analyzes PHP's statistical operation skills for strings in the form of examples. Friends in need can refer to the examples in this article

Describes the definition and use of the statistical word count function implemented in PHP. Share it with everyone for your reference, the details are as follows:

<?php
//函数定义：
function countWords($str){
  echo (mb_strlen($str, &#39;utf8&#39;) + strlen($str))/2;
}
//使用方法：
$strdemo1=&#39;欢迎访问脚本之家&#39;;
$strdemo2=&#39;http://www.jb51.net&#39;;
$strdemo3=&#39;欢迎访问脚本之家http://www.jb51.net&#39;;
countWords($strdemo1);
echo "<br/>";
countWords($strdemo2);
echo "<br/>";
countWords($strdemo3);
?>

Running results:

16
19
35

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