highlight multiple keywords in search

Question

i\'m using this code to highlight search keywords:

function highlightWords($string, $word)
 {

        $string = str_replace($word, \"

        

Answer 1

Assuming the words are entered as a space seperated string you can just use explode

$words = explode(' ', $term);

Although if you want to ensure there are not multiple spaces, you may want to remove them from the string first

$term = preg_replace('/\s+/', ' ', trim($term));
$words = explode(' ', $term);

You do then have to generate a replacement array

$highlighted = array();
foreach ( $words as $word ){
    $highlighted[] = "<span class='highlight'>".$word."</span>"
}

Then

str_replace($words, $highlighted, $string);

So putting it togther

function highlightWords($string, $term){
    $term = preg_replace('/\s+/', ' ', trim($term));
    $words = explode(' ', $term);

    $highlighted = array();
    foreach ( $words as $word ){
        $highlighted[] = "<span class='highlight'>".$word."</span>"
    }

    return str_replace($words, $highlighted, $string);
}

Answer 2

here is simple function to highlight only match text.

function highlighter_text($text, $words)
{
    $split_words = explode( " " , $words );
    foreach($split_words as $word)
    {
        $color = "#e5e5e5";
        $text = preg_replace("|($word)|Ui" ,
            "<span style=\"background:".$color.";\"><b>$1</b></span>" , $text );
    }
    return $text;
}

call function