note 44613 added to function.str-split

From: Date: Wed, 11 Aug 2004 00:31:13 +0000
Subject: note 44613 added to function.str-split
Groups: php.notes 
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Here's how I would do it: I renamed a few variables. $tmp_str became $str_ary. In my code, I would think that $tmp_str was a string, rather than an array. $offset became $cursor. A cursor is a better metaphor for an iterator. An offset implies a reference location plus or minus some distance -- does not apply here. Also, precalculate strlen($str) so that you don't call the function every time the for loop interates. Also, when $len == 1, we can avoid the use of substr(). <?php function str_split($str, $len=1) { if ($len < 1) return false; $str_ary = array(); $input_len = strlen($str); // don't use substr unless you have to if($len == 1) for($cursor = 0; $cursor < $input_len; $cursor++) $str_ary[] = $str{$cursor}; else for ($cursor = 0; $cursor < $input_len; $cursor += $len) $str_ary[] = substr($str, $offset, $len); return $str_ary; } ?> ---- Manual Page -- http://www.php.net/manual/en/function.str-split.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+44613 Delete -- http://master.php.net/manage/user-notes.php?action=delete+44613&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+44613&report=yes Search -- http://master.php.net/manage/user-notes.php

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