警告：preg_replace（）：未知修饰符'/'[重复]

Question

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• Warning: preg_replace(): Unknown modifier ']' 3 answers

I'm using this line within my Twitter feed:

$tweetText = preg_replace("/(http://|(www.\))(([^\s<]{4,68})[^\s<]*)/", '<a href="http://$2$3" target="_blank">$1$2$4</a>', $tweetText);

Yet, I get this error:

Warning: preg_replace(): Unknown modifier '/'

</div>

Answer 1

$tweetText = preg_replace("/(http:\/\/|(www\.))(([^\s<]{4,68})[^\s<]*)/", '<a href="http://$2$3" target="_blank">$1$2$4</a>', $tweetText);