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Copyright 1997-2022 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") withlibmysql
and as decimal strings (e.g. "0" or "31") withmysqlnd
. 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
.