note 94503 added to language.types.boolean

In response to [russell dot harper at springboardnetworks dot com], the following code maybe used: <?php function to_bool( $var) { if( is_string( $var)) { $firstchar = ord( $var[0]); if( $firstchar == ord("-") || $firstchar == ord("+") || ($firstchar >= ord("0") && $firstchar <= ord("9")) $var = (int) $var; else return true; } return (bool) $var; } var_dump( // These all return FALSE to_bool( 0), to_bool( false), to_bool( "0"), to_bool( "0.0"), to_bool( "") ); var_dump( // These all return TRUE to_bool( 1), to_bool( true), to_bool( "1"), to_bool( "-1"), to_bool( "true"), to_bool( "false") ); ?> The function can be easily changed to respond to strings like "false" and "no" correctly if so needed. ---- Server IP: 92.48.74.199 Probable Submitter: 129.67.110.224 ---- Manual Page -- http://www.php.net/manual/en/language.types.boolean.php Edit -- https://master.php.net/note/edit/94503 Del: integrated -- https://master.php.net/note/delete/94503/integrated Del: useless -- https://master.php.net/note/delete/94503/useless Del: bad code -- https://master.php.net/note/delete/94503/bad+code Del: spam -- https://master.php.net/note/delete/94503/spam Del: non-english -- https://master.php.net/note/delete/94503/non-english Del: in docs -- https://master.php.net/note/delete/94503/in+docs Del: other reasons-- https://master.php.net/note/delete/94503 Reject -- https://master.php.net/note/reject/94503 Search -- https://master.php.net/manage/user-notes.php