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Set the field from datetime to varchar(191). Update all rows with field = '0000-00-00 00:00:00' to NULL. Set the field back to datetime.
26 sie 2015 · In php, the mysql null dates type will be respected with the standard mysql connector, and be real nulls ($var === null, is_null($var)). Empty dates will always be represented as '0000-00-00 00:00:00'. I strongly advise to use only null dates, OR only empty dates if you can.
You set either $geburtsdatum to string NULL, or to the quoted (not only escaped) date. if( $input_date != null ){ $geburtsdatum = '"'.date("Y-m-d H:i:s",strtotime($input_date)).'"'; } else { $geburtsdatum = "NULL"; }
23 mar 2021 · How to change a datetime or date column in MySQL to default NULL. Without applying the NO_ZERO_DATE compatibility mode workaround. Also fixes incorrect datetime value: '0000-00-00 00:00:00' .
9 gru 2021 · The date_create_from_format() is an inbuilt function in php which is used to parses a time string according to a specified format. This function accepts three parameters and returns new DateTime in success or false on failure.
Use one of the suggested formats in MySQL documentation, for datetime literals, like the 'YYYY-MM-DD HH:MM:SS' format: WHERE validity = '1947-05-18 00:00:00' ; or the simpler (in this case, that there is no time part): WHERE validity = '1947-05-18' ;
22 wrz 2023 · If you need to turn a correctly formatted datetime back into an unusual format (for display purposes maybe?), DATE_FORMAT() will do just that! Lastly, watch out for NULL values while working with dates and times in MySQL.
