This happens even if there is extraneous information after the end of the query string.
The semicolon indicates the end of the query string; the rest of the variable is treated as a comment by the SQL engine, but counted as part of the input_parameters by PHP. The only difference is a typo in the second string, where a semicolon accidentally replaces a comma.
This UPDATE query will run, will be applied to all rows, and will silently damage the table./** * Query UPDATEs all rows, ignoring everything after the semi-colon, including the WHERE clause!
* */ // Typo here ------------------------ |// V Note that you must - EITHER pass all values to bind in an array to PDOStatement::execute() - OR bind every value before with PDOStatement::bind Value(), then call PDOStatement::execute() with *no* parameter (not even "array()"! Passing an array (empty or not) to execute() will "erase" and replace any previous bindings (and can lead to, e.g.
with My SQL, "SQLSTATE[HY000]: General error: 2031" (CR_PARAMS_NOT_BOUND) if you passed an empty array).
Thus the following function is incorrect in case the prepared statement has been "bound" before: Debugging prepared statements can be a pain sometimes when you need to copy a query and run it in the DB directly.
You cannot bind multiple values to a single parameter; for example, you cannot bind two values to a single named parameter in an IN() clause.
You cannot bind more values than specified; if more keys exist in /* This prepares the statement with enough unnamed placeholders for every value in our $params array.
The values of the $params array are then bound to the placeholders in the prepared statement when the statement is executed.This is not the same thing as using PDOStatement::bind Param() since this requires a reference to the variable.PDOStatement::execute() only binds by value instead.*/ If you are having issues passing boolean values to be bound and are using a Postgres database...but you do not want to use bind Param for *every* *single* *parameter*, try passing the strings 't' or 'f' instead of boolean TRUE or FALSE."You cannot bind more values than specified; if more keys exist in input_parameters than in the SQL specified in the PDO::prepare(), then the statement will fail and an error is emitted." However fewer keys may not cause an error.As long as the number of question marks in the query string variable matches the number of elements in the input_parameters, the query will be attempted.