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<?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 git.master, git.master_jit, rfc.property-hooks
Array ( [0] => [1] => T [2] => h [3] => i [4] => s [5] => [6] => i [7] => s [8] => [9] => a [10] => # [11] => h [12] => a [13] => s [14] => t [15] => a [16] => g [17] => [18] => w [19] => i [20] => t [21] => h [22] => i [23] => n [24] => [25] => s [26] => o [27] => m [28] => e [29] => # [30] => a [31] => w [32] => e [33] => s [34] => o [35] => m [36] => e [37] => t [38] => e [39] => x [40] => t [41] => . [42] => ) T h i s i s a # h a s t a g w i t h i n s o m e # a w e s o m e t e x t .

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