(no version information, might be only in CVS)
PDO::prepare -- Prepares a statement for execution and returns a statement objectAviso |
Esta función es EXPERIMENTAL. Esto significa que el comportamiento de esta función, el nombre de esta función y en definitiva TODO lo documentado sobre esta función, puede cambiar en una futura version de PHP SIN AVISO. La advertencia queda hecha, y utilizar esta extensión queda bajo su propia responsabilidad. |
Prepares an SQL statement to be executed by the PDOStatement::execute() method. The SQL statement can contain zero or more named (:name) or question mark (?) parameter markers for which real values will be substituted when the statement is executed.
Calling PDO::prepare() and PDOStatement::execute() for statements that will be issued multiple times with different parameter values optimizes the performance of your application and helps prevent SQL injection attacks.
This must be a valid SQL statement for the target database server.
This array holds one or more key=>value pairs to set attribute values for the PDOStatement object that this method returns. You would most commonly use this to set the PDO_ATTR_CURSOR value to PDO_CURSOR_SCROLL to request a scrollable cursor.
If the database server successfully prepares the statement, PDO::prepare() returns a PDOStatement object.
Ejemplo 2. Prepare an SQL statement with question mark parameters
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