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sqlsrv_cancel
(No version information available, might only be in Git)
sqlsrv_cancel — Cancels a statement
Description
$stmt
) : boolCancels a statement. Any results associated with the statement that have not been consumed are deleted. After sqlsrv_cancel() has been called, the specified statement can be re-executed if it was created with sqlsrv_prepare(). Calling sqlsrv_cancel() is not necessary if all the results associated with the statement have been consumed.
Examples
Example #1 sqlsrv_cancel() example
<?php
$serverName = "serverName\sqlexpress";
$connectionInfo = array( "Database"=>"dbName", "UID"=>"username", "PWD"=>"password");
$conn = sqlsrv_connect( $serverName, $connectionInfo);
if( $conn === false ) {
die( print_r( sqlsrv_errors(), true));
}
$sql = "SELECT Sales FROM Table_1";
$stmt = sqlsrv_prepare( $conn, $sql);
if( $stmt === false ) {
die( print_r( sqlsrv_errors(), true));
}
if( sqlsrv_execute( $stmt ) === false) {
die( print_r( sqlsrv_errors(), true));
}
$salesTotal = 0;
$count = 0;
while( ($row = sqlsrv_fetch_array( $stmt)) && $salesTotal <=100000)
{
$qty = $row[0];
$price = $row[1];
$salesTotal += ( $price * $qty);
$count++;
}
echo "$count sales accounted for the first $$salesTotal in revenue.<br />";
// Cancel the pending results. The statement can be reused.
sqlsrv_cancel( $stmt);
?>
Notes
The main difference between sqlsrv_cancel() and sqlsrv_free_stmt() is that a statement resource cancelled with sqlsrv_cancel() can be re-executed if it was created with sqlsrv_prepare(). A statement resource cancelled with sqlsrv_free_statement() cannot be re-executed.
See Also
- sqlsrv_free_stmt() - Frees all resources for the specified statement
- sqlsrv_prepare() - Prepares a query for execution
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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-function.sqlsrv-cancel.html
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