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PDO::exec

  • Článek

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Prepares and executes a SQL statement in a single function call, returning the number of rows affected by the statement.

Syntax

  
int PDO::exec ($statement)

Parameters

$statement: A string containing the SQL statement to execute.

Return Value

An integer reporting the number of rows affected.

Remarks

If $statement contains multiple SQL statements, the count of affected rows is reported for the last statement only.

PDO::exec does not return results for a SELECT statement.

The following attributes affect the behavior of PDO::exec:

  • PDO::ATTR_DEFAULT_FETCH_MODE

  • PDO::SQLSRV_ATTR_ENCODING

  • PDO::SQLSRV_ATTR_QUERY_TIMEOUT

For more information, see PDO::setAttribute.

Support for PDO was added in version 2.0 of the Microsoft Drivers for PHP for SQL Server.

Example

This example deletes rows in Table1 that have 'xxxyy' in col1. The example then reports how many rows were deleted.

<?php  
   $c = new PDO( "sqlsrv:server=(local)");  
  
   $c->exec("use Test");  
   $ret = $c->exec("delete from Table1 where col1 = 'xxxyy'");  
   echo $ret;  
?>

See Also

PDO Class

PDO