Php Mysql Is Inserting Null Values Stack Overflow

Php Mysql Is Inserting Null Values Stack Overflow In mysql, in order to insert a null value, you must specify it at insert time or leave the field out which requires additional branching: insert into table2 (f1, f2). The sql executed successfully, however i found that all the inserted values became null, including the system generated values like now(). does anybody have an idea? please post the create statement of the table (using phpmyadmin's export tab).

Php Mysql Inserting Multiple Values From Drop Box Selections Stack The php code to insert data into the table simply used the variables as values: $dbh=mysqli connect ("$mysql host", "$mysql user", "$mysql password", "$mysql db") or die ('i cannot connect to the database because: ' . mysqli connect error ());. To add a query into sql i use this kind of code : ps : even when i set my column into not null it replace the name with blank. $sqlconnexion = new mysqli($hn,$un,$pw,$db); if($sqlconnexion >connect error){ die ('soucis de connexion sql');} $date = date("d m y g:i:s"); if(isset($ post['zonedetext'])){ $area = $ post['zonedetext'];. When attempting to insert an array value of null using mysql query (), you may encounter issues where null values aren't properly inserted, despite allowing them in the database. to address this problem, consider using prepared statements instead. To pass a null to mysql, you do just that. $notes = !empty($notes) ? "'$notes'" : "null"; $query = "insert into data (name, notes) values ('name',$notes)"; or you could add condition like… $query = "insert into data (name, notes) values ('name',nullif('$notes',''))";.

Php Mysql Select Statement Return Null Stack Overflow When attempting to insert an array value of null using mysql query (), you may encounter issues where null values aren't properly inserted, despite allowing them in the database. to address this problem, consider using prepared statements instead. To pass a null to mysql, you do just that. $notes = !empty($notes) ? "'$notes'" : "null"; $query = "insert into data (name, notes) values ('name',$notes)"; or you could add condition like… $query = "insert into data (name, notes) values ('name',nullif('$notes',''))";. Apparently, i cannot delete and re insert different rows with the same value field but i do not have a unique key on the value field. regardless, if it were a unique key issue i should get a duplicate key error. All you have to do is: $variable =null; and pass it in the insert query. this will store the value as null in mysql db. no need for quotes around the "null". normally, you add regular values to mysql, from php like this: db open(); just some code ot open the db . When inserting data into a mysql database using php, it may be necessary to explicitly pass a null value for optional fields. if an empty string is passed instead, mysql will interpret it as a non empty value. Probably because php doesn't convert 'null' into 'null'. you are probably just inserting an empty value. you probably have the default for the column set to '0', and that means that it will insert a 0 unless you specify a number or null. to fix this, check for null values before you do the query. if($value == null) $values[$key] = "null";.