<?php
function gethashtags($text)
{
//Match the hashtags
preg_match_all('/(^|[^a-z0-9_])#([a-z0-9_]+)/i', $text, $matchedHashtags);
$hashtag = '';
// For each hashtag, strip all characters but alpha numeric
if(!empty($matchedHashtags[0])) {
foreach($matchedHashtags[0] as $match) {
$hashtag[] = preg_replace("/[^a-z0-9]+/i", "", $match);
}
}
//to remove last comma in a string
//return rtrim($hashtag, ',');
return $hashtag;
}
//usage
$text = "w3lessons.info - ";
print_R(gethashtags($text));
- Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
preferences:
258.65 ms | 404 KiB | 373 Q