medoo return value problem

Question

#This update operation returns the number of rows in the result $data and $data->rowCount(); what is the difference? Aren’t they both returning influence functions?

In addition: medoo update operation,

Update successful:

If the data changes, return the number of rows $data=1

If the data does not change, the number of rows returned $data=0;

Update failure:

The number of rows returned $data is also 0. How to make if judgment, update failure and update success ( (data has not changed) the return value is the same, how to write the judgment

Answer 1

update() performs an update operation, then the affected record stored in $data is not a PDO object;

rowCound() should be called on the pdo object;

Please check the $data type, var_dump() or gettype()