For database modification and update problems, select to query the database first, then fetch_assoc () in a loop, and then modify the table according to a field in the record of this row, this record can be modified not only for all records that match this field in the table. how can I update the database after the modification to avoid repeated modification during the next loop to improve the efficiency of database modification and update?
Select to query the database first, then fetch_assoc () A row of records in a loop, and then modify the table according to a field in the row record, this record can be modified not only for all records that match this field in the table. how can I update the database after the modification to avoid repeated modification during the next loop to improve efficiency? Share: More
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