获取PHP PDO中最后执行的查询

  • Z时代
  • 2024-01-10
  • 分类：问答

我想知道使用PHP PDO执行什么查询。我有：

<?php
try {  
  $DBH = new PDO("mysql:host=localhost;dbname=mytable", 'myuser', 'mypass');  
}  
catch(PDOException $e) {  
    echo $e->getMessage();  
}
$DBH->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING );  
$DBH->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
$STH = $DBH->("INSERT INTO mytable (column1, column2, column3 /* etc...*/) value (:column1, :column2, :column3 /* etc...*/)"); 
$STH->bindParam(':column1', $column1);  
$STH->bindParam(':column2', $column2);  
$STH->bindParam(':column3', $column3);  
 /* etc...*/
$STH->execute();
// what is my query?

我想得到类似的东西：

INSERT INTO mytable (column1, column2, column3) value ('my first column', 32, 'some text')

可能吗？谢谢

回答：

<?php
class MyPDOStatement extends PDOStatement
{
  protected $_debugValues = null;
  protected function __construct()
  {
    // need this empty construct()!
  }
  public function execute($values=array())
  {
    $this->_debugValues = $values;
    try {
      $t = parent::execute($values);
      // maybe do some logging here?
    } catch (PDOException $e) {
      // maybe do some logging here?
      throw $e;
    }
    return $t;
  }
  public function _debugQuery($replaced=true)
  {
    $q = $this->queryString;
    if (!$replaced) {
      return $q;
    }
    return preg_replace_callback('/:([0-9a-z_]+)/i', array($this, '_debugReplace'), $q);
  }
  protected function _debugReplace($m)
  {
    $v = $this->_debugValues[$m[1]];
    if ($v === null) {
      return "NULL";
    }
    if (!is_numeric($v)) {
      $v = str_replace("'", "''", $v);
    }
    return "'". $v ."'";
  }
}
// have a look at http://www.php.net/manual/en/pdo.constants.php
$options = array(
  PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
  PDO::ATTR_STATEMENT_CLASS => array('MyPDOStatement', array()),
);
// create PDO with custom PDOStatement class
$pdo = new PDO($dsn, $username, $password, $options);
// prepare a query
$query = $pdo->prepare("INSERT INTO mytable (column1, column2, column3)
  VALUES (:col1, :col2, :col3)");
// execute the prepared statement
$query->execute(array(
  'col1' => "hello world",
  'col2' => 47.11,
  'col3' => null,
));
// output the query and the query with values inserted
var_dump( $query->queryString, $query->_debugQuery() );

以上是 获取PHP PDO中最后执行的查询 的全部内容， 来源链接： utcz.com/qa/412005.html

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