通过

PDOStatement::setFetchMode

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为 PDOStatement 句柄指定提取模式。

语法

  
bool PDOStatement::setFetchMode( $mode );

参数

$mode：可有效传递给 PDOStatement::fetch 的任何参数。

返回值

如果成功，则为 True；否则为 False。

注解

已在 Microsoft Drivers for PHP for SQL Server的版本 2.0 中添加了对 PDO 的支持。

示例

<?php  
   $server = "(local)";  
   $database = "AdventureWorks";  
   $conn = new PDO( "sqlsrv:server=$server ; Database = $database", "", "");  
  
   $stmt1 = $conn->query( "select * from Person.ContactType where ContactTypeID < 5 " );  
   while ( $row = $stmt1->fetch()) {   
      print($row['Name'] . "\n");   
   }  
   print( "\n---------- PDO::FETCH_ASSOC -------------\n" );  
   $stmt = $conn->query( "select * from Person.ContactType where ContactTypeID < 5 " );  
   $stmt->setFetchMode(PDO::FETCH_ASSOC);  
   $result = $stmt->fetch();  
   print_r( $result );  
  
   print( "\n---------- PDO::FETCH_NUM -------------\n" );  
   $stmt = $conn->query( "select * from Person.ContactType where ContactTypeID < 5 " );  
   $stmt->setFetchMode(PDO::FETCH_NUM);  
   $result = $stmt->fetch();  
   print_r ($result );  
  
   print( "\n---------- PDO::FETCH_BOTH -------------\n" );  
   $stmt = $conn->query( "select * from Person.ContactType where ContactTypeID < 5 " );  
   $stmt->setFetchMode(PDO::FETCH_BOTH);  
   $result = $stmt->fetch();  
   print_r( $result );  
  
   print( "\n---------- PDO::FETCH_LAZY -------------\n" );  
   $stmt = $conn->query( "select * from Person.ContactType where ContactTypeID < 5 " );  
   $stmt->setFetchMode(PDO::FETCH_LAZY);  
   $result = $stmt->fetch();  
   print_r( $result );  
  
   print( "\n---------- PDO::FETCH_OBJ -------------\n" );  
   $stmt = $conn->query( "select * from Person.ContactType where ContactTypeID < 5 " );  
   $stmt->setFetchMode(PDO::FETCH_OBJ);  
   $result = $stmt->fetch();  
   print $result->Name;  
   print( "\n \n" );  
?>

另请参阅

PDOStatement 类

PDO