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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 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => [1] => his [2] => [3] => s [4] => [5] => [6] => # [7] => astag [8] => [9] => ithin [10] => [11] => ome [12] => # [13] => wesometext [14] => ) his s <a href = 'category.php?tag=#'>#</a> astag ithin ome <a href = 'category.php?tag=#'>#</a> wesometext