php 8. strpos(): Passing null to parameter #1 ($haystack) of type string is deprecate...

[fa-stable.git] / includes / date_functions.inc

diff --git a/includes/date_functions.inc b/includes/date_functions.inc
index c0bcbe94476acb565053bbd7268ac01479270b92..2538f79d65f3edc24c031ae23f176a5359e10592 100644 (file)
--- a/includes/date_functions.inc
+++ b/includes/date_functions.inc
@@ -350,7 +350,8 @@ function sql2date($date_)
        global $SysPrefs;
 
        //for MySQL dates are in the format YYYY-mm-dd
-
+       if ($date_ == null)
+               return "";
        if (strpos($date_, "/")) 
        { // In MySQL it could be either / or -
                list($year, $month, $day) = explode("/", $date_);
@@ -395,32 +396,34 @@ and converts to a yyyy/mm/dd format */
         list($day, $month, $year) = explode($sep, $date_);
     else // $how == 2 || $how == 5, YYYYMMDD or YYYYMmmDD
         list($year, $month, $day) = explode($sep, $date_);
+
        if ($how > 2)
        {
                global $tmonths;
                $month = array_search($month, $tmonths);
-       }       
-//to modify assumption in 2030
-       if ($SysPrefs->date_system == 0 || $SysPrefs->date_system == 3)
-       {
-               if ((int)$year < 60)
+       }
+       if ($year+$day+$month) {
+               //to modify assumption in 2030
+               if ($SysPrefs->date_system == 0 || $SysPrefs->date_system == 3)
                {
-                       $year = "20".$year;
-               } 
-               elseif ((int)$year > 59 && (int)$year < 100)
+                       if ((int)$year < 60)
+                       {
+                               $year = "20".$year;
+                       } 
+                       elseif ((int)$year > 59 && (int)$year < 100)
+                       {
+                               $year = "19".$year;
+                       }
+               }
+               if ((int)$year > 9999)
                {
-                       $year = "19".$year;
+                       return 0;
                }
-       }       
-       if ((int)$year > 9999)
-       {
-               return 0;
+               if ($SysPrefs->date_system == 1)
+                       list($year, $month, $day) = jalali_to_gregorian($year, $month, $day); 
+               elseif ($SysPrefs->date_system == 2)
+                       list($year, $month, $day) = islamic_to_gregorian($year, $month, $day); 
        }
-       if ($SysPrefs->date_system == 1)
-               list($year, $month, $day) = jalali_to_gregorian($year, $month, $day); 
-       elseif ($SysPrefs->date_system == 2)
-               list($year, $month, $day) = islamic_to_gregorian($year, $month, $day); 
-
        return sprintf("%04d-%02d-%02d", $year, $month, $day);
 }// end of function