php高亮多字

Question

我想高亮多字

我想搜索所有搜索字词，即使它们重叠。

如果我搜索AB和BC农行将突出

Answer 1

Use this line of code which helps to highlights the search string: 
<?php 
function highlightsWords($text, $words) { 
    preg_match_all('~\w+~', $words, $m); 
    if(!$m) return $text; 
    $re = '~\\b(' . implode('|', $m[0]) . ')\\b~i'; 
    return preg_replace($re, '<b>$0</b>', $text); 
} 

$text = 'Hang Seng Index advanced 0.6% to 24,400.80, after falling as much as 0.4% earlier'; 
$words = 'hang earlier'; 
echo highlightsWords($text, $words); 
?>