How to wrap the first word in a tag?

Question

PHP

How to wrap the first word in even if it's 1 in the string?

Answer 1

preg_replace by regular expression /^[\w]+/ or stupidly up to the first space /^[^\s]+/

Answer 2

function tagFirstWord($string, $tag="b") {
    $words = explode(" ", $string);
    $words[0] = "<{$tag}>{$words[0]}</{$tag}>";
    
    return implode(" ", $words);
}