mysqli_stmt_store_result (PHP 5)
mysqli_stmt_store_result
(no version information, might be only in CVS)
mysqli_stmt->store_result -- Transfers a result set from a prepared statement
Description Procedural style:
bool
mysqli_stmt_store_result ( mysqli_stmt stmt )
Object oriented style (method):
class
mysqli_stmt {
bool
store_result ( void )
}
You must call mysqli_stmt_store_result() for every query that
successfully produces a result set (SELECT, SHOW, DESCRIBE, EXPLAIN ),
and only if you want to buffer the complete result set by the client,
so that the subsequent mysqli_stmt_fetch()
Note:
It is unnecessary to call mysqli_stmt_store_result() for other queries,
but if you do, it will not harm or cause any notable performance in all cases.
You can detect whether the query produced a result set by checking if
mysqli_stmt_result_metadata()
Return Values Returns TRUE FALSE
Examples Example 1. Object oriented style
<?php /* Open a connection */ $mysqli = new mysqli ( "localhost" , "my_user" , "my_password" , "world" ); /* check connection */ if ( mysqli_connect_errno ()) { printf ( "Connect failed: %s\n" , mysqli_connect_error ()); $query = "SELECT Name, CountryCode FROM City ORDER BY Name LIMIT 20" ; $stmt = $mysqli -> prepare ( $query )) { /* execute query */ $stmt -> execute (); /* store result */ $stmt -> store_result (); printf ( "Number of rows: %d.\n" , $stmt -> num_rows ); /* free result */ $stmt -> free_result (); /* close statement */ $stmt -> close (); /* close connection */ $mysqli -> close (); ?>
Example 2. Procedural style
<?php /* Open a connection */ $link = mysqli_connect ( "localhost" , "my_user" , "my_password" , "world" ); /* check connection */ if ( mysqli_connect_errno ()) { printf ( "Connect failed: %s\n" , mysqli_connect_error ()); $query = "SELECT Name, CountryCode FROM City ORDER BY Name LIMIT 20" ; $stmt = mysqli_prepare ( $link , $query )) { /* execute query */ mysqli_stmt_execute ( $stmt ); /* store result */ mysqli_stmt_store_result ( $stmt ); printf ( "Number of rows: %d.\n" , mysqli_stmt_num_rows ( $stmt )); /* free result */ mysqli_stmt_free_result ( $stmt ); /* close statement */ mysqli_stmt_close ( $stmt ); /* close connection */ mysqli_close ( $link ); ?>
The above example will output:
