Detect leap year for gregorian and shamsi date.
function gLeapYear($year) { if (($year % 4 == 0) and (($year % 100 != 0) or ($year % 400 == 0))) return true; else return false; } function sLeapYear($year) { $ary = array(1, 5, 9, 13, 17, 22, 26, 30); $b = $year % 33; if (in_array($b, $ary)) return true; return false; } echo sLeapYear(1392).' '; echo gLeapYear(2013);
parse_str() is fine for simple stuff but it's not the same as PHP's built way of creating the $_GET magic variable. Why?!?......
Escapes special characters in a string for use in an SQL statement. howewer it check get_magic_quotes_gpc function is enable or no. if true , it strips string from slashes and escaped string from spec...
Encrypt function return different value with each execute but decrypt function return input value. for example: first execute: encrypt('hello') => 'axxdfg34', decrypt('axxdfg34') return 'hello'...
This function check if an e-mail address is valid or not. function valid_email($email) { return preg_match('/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/', $email);...
