MySQL PHP API  /  MySQL Native Driver  /  Incompatibilities

6.4 Incompatibilities

Copyright 1997-2014 the PHP Documentation Group.

MySQL Native Driver is in most cases compatible with MySQL Client Library (libmysql). This section documents incompatibilities between these libraries.

  • Values of bit data type are returned as binary strings (e.g. "\0" or "\x1F") with libmysql and as decimal strings (e.g. "0" or "31") with mysqlnd. If you want the code to be compatible with both libraries then always return bit fields as numbers from MySQL with a query like this: SELECT bit + 0 FROM table.

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