note 86796 modified in function.is-numeric by danbrown

Using SpT_King James example, i've re-wrote to cater for digits starting with '+', commas ',' or period '.' <?php function is_numeric_regex($str) { $str = "{$str}"; if (in_array($str[0], array('-', '+'))) $str = "{$str[0]}0" . substr($str, 1); else $str = "0{$str}"; $eng = preg_match ("/^[+,-]{0,1}([0-9]+)(,[0-9][0-9][0-9])*([.][0-9]){0,1}([0-9]*)$/" , $str) == 1; $world = preg_match ("/^[+,-]{0,1}([0-9]+)(.[0-9][0-9][0-9])*([,][0-9]){0,1}([0-9]*)$/" , $str) == 1; return ($eng or $world); } ?> --was-- Using SpT_King James example, i've re-wrote to cater for digits starting with '+', commas ',' or period '.' function is_numeric_regex($str) { $str = "{$str}"; if (in_array($str[0], array('-', '+'))) $str = "{$str[0]}0" . substr($str, 1); else $str = "0{$str}"; $eng = preg_match ("/^[+,-]{0,1}([0-9]+)(,[0-9][0-9][0-9])*([.][0-9]){0,1}([0-9]*)$/" , $str) == 1; $world = preg_match ("/^[+,-]{0,1}([0-9]+)(.[0-9][0-9][0-9])*([,][0-9]){0,1}([0-9]*)$/" , $str) == 1; return ($eng or $world); } http://php.net/manual/en/function.is-numeric.php