php - empty date goes into database as 1970/01/01 -

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so have database column date, when user leaves section blank , updates record saves in database 1970/01/01.

enter image description here

now when make columng null = no , default = none not work.

in code check see if value null (which why strtotime() function fails). if null try set value saved ''.

        $nicedate = $this->judgement_date;         $databasedate = date("y-m-d", strtotime($nicedate));         if(is_null($databasedate)){             $databasedate == '';         }         $this->judgement_date = $databasedate;

is there anyway me save empty value of '' in field or date type mean has have value of date format?

assuming $this->judgement_date in a valid date format, $databasedate never null in code strtotime() , date() return values (including false). need check if $nicedate has valid value , use empty string if not.

you use == instead of = assignment operator logical error php not report.

    $nicedate = $this->judgement_date;     if(empty($databasedate)){ // null empty         $databasedate = '';     }     else {         $databasedate = date("y-m-d", strtotime($nicedate));     }     $this->judgement_date = $databasedate;

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