PHP 搜索分词

1. 简单的英文分词

<?php  
    $search = 'this is a testing';
    $words = explode(' ', $search);   
	$length = count($words);
    for($i = 0; $i < $length; $i++) echo $words[$i].'<br />';
?>

2. 简单的中英文分词

见附件