Manuál PHP | ||
---|---|---|
PÅ™edcházejÃcà | Dalšà |
PDOStatement->columnCount()
(no version information, might be only in CVS)
PDOStatement->columnCount() -- Returns the number of columns in the result setPopis
class PDOStatement {int columnCount ( void )
}
Use PDOStatement->columnCount() to return the number of columns in the result set represented by the PDOStatement object.
If the PDOStatement object was returned from PDO->query(), the column count is immediately available.
If the PDOStatement object was returned from PDO->prepare(), an accurate column count will not be available until you invoke PDOStatement->execute().
Návratové hodnoty
Returns the number of columns in the result set represented by the PDOStatement object. If there is no result set, PDOStatement->columnCount() returns 0.
PÅ™Ãklady
PÅ™Ãklad 1. Counting columns This example demonstrates how PDOStatement->columnCount() operates with and without a result set.
Výše uvedený pÅ™Ãklad vypÃÅ¡e:
|
PÅ™edcházejÃcà | Domů | Dalšà |
PDOStatement->closeCursor() | Nahoru |