PDOStatement
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PDOStatement->setFetchMode

(No version information available, might be only in CVS)

PDOStatement->setFetchMode Set the default fetch mode for this statement

说明

bool PDOStatement::setFetchMode ( int $mode )
bool PDOStatement::setFetchMode ( int $PDO::FETCH_COLUMN , int $colno )
bool PDOStatement::setFetchMode ( int $PDO::FETCH_CLASS , string $classname , array $ctorargs )
bool PDOStatement::setFetchMode ( int $PDO::FETCH_INTO , object $object )

参数

mode

The fetch mode must be one of the PDO::FETCH_* constants.

colno

Column number.

classname

Class name.

ctorargs

Constructor arguments.

object

Object.

返回值

Returns 1 on success or FALSE on failure.

范例

Example #1 Setting the fetch mode

The following example demonstrates how PDOStatement::setFetchMode() changes the default fetch mode for a PDOStatement object.

<?php
$sql 
'SELECT name, colour, calories FROM fruit';
try {
  
$stmt $dbh->query($sql);
  
$result $stmt->setFetchMode(PDO::FETCH_NUM);
  while (
$row $stmt->fetch()) {
    print 
$row[0] . "\t" $row[1] . "\t" $row[2] . "\n";
  }
}
catch (
PDOException $e) {
  print 
$e->getMessage();
}
?>

上例将输出:

apple   red     150
banana  yellow  250
orange  orange  300
kiwi    brown   75
lemon   yellow  25
pear    green   150
watermelon      pink    90


PDOStatement
PHP 手册