| protected getKeywordsForRegex ( array $keywords, string $delimiter = '/' ) : string[] | ||
| $keywords | array | |
| $delimiter | string | |
| return | string[] | |
protected function getKeywordsForRegex(array $keywords, $delimiter = '/')
{
// escape keywords for use in regex
$delimiter = array_fill(0, count($keywords), $delimiter);
$escaped = array_map('preg_quote', $keywords, $delimiter);
// add word boundaries
array_walk($keywords, function ($value) {
return '\\b' . $value . '\\b';
});
$keywords = array_combine($keywords, $escaped);
return $keywords;
}