- preg_replace: documentation ( source)
<?php
$text = "This is a #hashtag within some #awesometext.";
function tagIt($body)
{
$string = $body;
$htag = "#";
$newstring = preg_replace("/#(\w+)/", "<a href='category.php?tag=$1'>#$1</a>", $string);
//$arr = preg_split("/\s|\./", $string);print_r($arr);
/*$arrc = count($arr);
$i = 0;
while($i < $arrc) {
if(substr($arr[$i], 0, 1) === $htag) {
$arr[$i] = "<a href = 'category.php?tag=".substr($arr[$i], 1)."'>".$arr[$i]."</a>";
}
$i++;
}
$string = implode(" ", $arr);*/
echo "\n".$newstring."\n";
}
tagIt($text);