fatal error

oshash · 01-06-2010, 10:44 AM

Hi,

Can any one tell me why i get this error::
Fatal error: Cannot redeclare date_diff() in C:\wamp\www\kamsar012010_local\includes\functions. php on line 26
And my function.php is

PHP Code:


			
<?php
// PHP USEFUL FUNCTIONS:-


function date_diff($date1, $date2) {
  //$date1  today, or any other day
  //$date2  date to check against

    $d1 = explode("-", $date1);
    $y1 = $d1[0];
    $m1 = $d1[1];
    $d1 = $d1[2];

    $d2 = explode("-", $date2);
    $y2 = $d2[0];
    $m2 = $d2[1];
    $d2 = $d2[2];

    $date1_set = mktime(0,0,0, $m1, $d1, $y1);
    $date2_set = mktime(0,0,0, $m2, $d2, $y2);

    return(round(($date2_set-$date1_set)/(60*60*24)));
}//*********LINE 26******Showing error here





function get_ip_address() {
    if (isset($_SERVER)) {
      if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
        $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
      } elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
        $ip = $_SERVER['HTTP_CLIENT_IP'];
      } else {
        $ip = $_SERVER['REMOTE_ADDR'];
      }
    } else {
      if (getenv('HTTP_X_FORWARDED_FOR')) {
        $ip = getenv('HTTP_X_FORWARDED_FOR');
      } elseif (getenv('HTTP_CLIENT_IP')) {
        $ip = getenv('HTTP_CLIENT_IP');
      } else {
        $ip = getenv('REMOTE_ADDR');
      }
    }

 return $ip;
 }




function is_leap_year($year) {
    if ($year % 100 == 0) {
      if ($year % 400 == 0) return true;
    } else {
      if (($year % 4) == 0) return true;
    }

    return false;
  }



function check_email_address($email) {

  if (!ereg("[^@]{1,64}@[^@]{1,255}", $email)) {

    return false;
  }

  $email_array = explode("@", $email);
  $local_array = explode(".", $email_array[0]);
  for ($i = 0; $i < sizeof($local_array); $i++) {
     if (!ereg("^(([A-Za-z0-9!#$%&'*+/=?^_`{|}~-][A-Za-z0-9!#$%&'*+/=?^_`{|}~.-]{0,63})|('[^(\|)]{0,62}'))$", $local_array[$i])) {
      return false;
    }
  }  
  if (!ereg("^[?[0-9.]+]?$", $email_array[1])) { 
    $domain_array = explode(".", $email_array[1]);
    if (sizeof($domain_array) < 2) {
        return false; 
    }
    for ($i = 0; $i < sizeof($domain_array); $i++) {
      if (!ereg("^(([A-Za-z0-9][A-Za-z0-9-]{0,61}[A-Za-z0-9])|([A-Za-z0-9]+))$", $domain_array[$i])) {
        return false;
      }
    }
  }
  return true;
}



// $start - From which year to start
// $years - number of years from the start year
function drop_down_years($start, $years, $direction) {
    if($direction==1) {
        $end = $start + $years-1;
        for($i=$start;$i<=$end;$i++) {
            $values[] = $i;
        }    
    }
    else {
    $end = $start - $years;
    for($i=$end;$i<=$start;$i++) {
            $values[] = $i;
        }    
        $values = array_reverse($values);
    }
    return ($values);
}






function GetAge($Birthdate)

{
       // Explode the date into meaningful variables
        list($BirthYear,$BirthMonth,$BirthDay) = explode("-", $Birthdate);
        // Find the differences
        $YearDiff = date("Y") - $BirthYear;
        $MonthDiff = date("m") - $BirthMonth;
        $DayDiff = date("d") - $BirthDay;
        // If the birthday has not occured this year
        if ($DayDiff < 0 || $MonthDiff < 0)
          $YearDiff--;
       return $YearDiff;
}

?>

etoolbox · 01-06-2010, 11:23 AM

You are getting that message because there's already a function called date_diff which has been declared. If you get this message, it means that

1) you have included code more than once which contains the same function,
2) have written code in more than one place which has the same function name, or
3) are trying to create a function which has the same name as a PHP function

In this instance it's #3:
http://nz.php.net/date_diff

oshash · 01-06-2010, 11:51 AM

hmm... I have used the same include directory in admin folder also .
is that the problem???

etoolbox · 01-06-2010, 11:55 AM

No, the problem is the function has already been declared because it's a built-in PHP function. Either use the PHP function and remove your function with the same name, or name your one something different.

oshash · 01-06-2010, 12:03 PM

how should i do that ??
am a beginner in php:(

etoolbox · 01-06-2010, 12:04 PM

Change
function date_diff($date1, $date2) {
to
function date_diff_some_other_name_that_doesnt_clash_with_t he_built_in_function_of_the_same_name($date1, $date2) {

oshash · 01-06-2010, 12:11 PM

Thanks Dude the error has gone..:)