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run code in 150+ php & hhvm versions
Bugs & Features
<?php $text = "This is a #hastag within some #awesometext."; function tagIt($body) { $string = $body; $htag = "#"; $arr = preg_split("/(?![#])\b/", $string);print_r($arr); $arrc = count($arr); $i = 0; while($i < $arrc) { if(substr($arr[$i], 0, 1) === $htag) { $arr[$i] = "<a href = 'category.php?tag=$arr[$i]'>".$arr[$i]."</a>"; } $i++; } $string = implode(" ", $arr); echo "\n".$string."\n"; } tagIt($text);
Output for 4.3.0 - 7.1.0
Array ( [0] => [1] => This [2] => [3] => is [4] => [5] => a [6] => # [7] => hastag [8] => [9] => within [10] => [11] => some [12] => # [13] => awesometext [14] => . ) This is a # hastag within some # awesometext .