note 63924 added to function.substr

WARNING - You would think that substr( $string, 0, $length) would return the first $length characters of $string, or $string if it's less than $length. Nope. substr( '', 0, $length) returns False, not ''. If a later function tests for type, you'll get is_bool(), not is_string(). The specs say that substr() returns FALSE if strlen() <= $start. Arguably it should return FALSE if strlen() < $start, and "" if strlen() == $start. I had to write this function: <?php function SubString( $String, $Start, $Length ) { if ( strlen( $String ) == $Start ) { return ''; } else { return substr( $String, $Start, $Length ); } } ?> ---- Server IP: 203.121.145.116 Probable Submitter: 58.147.86.83 ---- X-Spam-Status: No, hits=3.1 required=5.0 tests=DATE_MISSING,FROM_NO_LOWER autolearn=no version=2.64 ---- Manual Page -- http://www.php.net/manual/en/function.substr.php Edit -- http://master.php.net/note/edit/63924 Del: integrated -- http://master.php.net/note/delete/63924/integrated Del: useless -- http://master.php.net/note/delete/63924/useless Del: bad code -- http://master.php.net/note/delete/63924/bad+code Del: spam -- http://master.php.net/note/delete/63924/spam Del: non-english -- http://master.php.net/note/delete/63924/non-english Del: in docs -- http://master.php.net/note/delete/63924/in+docs Del: other reasons-- http://master.php.net/note/delete/63924 Reject -- http://master.php.net/note/reject/63924 Search -- http://master.php.net/manage/user-notes.php