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  • PDOStatement::errorCode()

    (PHP 5 >= 5.1.0, PHP 7, PECL pdo >= 0.1.0)

    获取跟上一次语句句柄操作相关的 SQLSTATE

    说明

    PDOStatement::errorCode(void): string

    返回值

    与PDO::errorCode()相同,只是PDOStatement::errorCode()只取回 PDOStatement 对象执行操作中的错误码。

    范例

    取回一个 SQLSTATE 码

    <?php
    /* 引发一个错误 --  BONES 数据表不存在 */
    $err = $dbh->prepare('SELECT skull FROM bones');
    $err->execute();
    echo "\nPDOStatement::errorCode(): ";
    print $err->errorCode();
    ?>
    

    以上例程会输出:

    PDOStatement::errorCode(): 42S02
    

    参见

    • PDO::errorCode() 获取跟数据库句柄上一次操作相关的 SQLSTATE
    • PDO::errorInfo() Fetch extended error information associated with the last operation on the database handle
    • PDOStatement::errorInfo() 获取跟上一次语句句柄操作相关的扩展错误信息
    Statement's errorCode() returns an empty string before execution, and '00000' (five zeros) after a sucessfull execution:
    <?php
    $stmt = $pdo->prepare($query);
    assert($stmt->errorCode === '');
    $stmt->execute();
    assert($stmt->errorCode === '00000');
    ?>
    
    Neither this property nor the PDOStatement::errorInfo() properties are available if you create your own exception handler.
    I am using PHP 5.2.4, PDO_INFORMIX 1.2.0.
    Making this call at any point in the program after setting your own exception handler produces an error:
    PHP Notice: Undefined property: PDOStatement::$errorCode in new_query.php on line
    or
    PHP Notice: Undefined property: PDOStatement::$errorInfo in new_query.php on line
    But if I set the PDO to SILENT, only set error codes with:
    $dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_SILENT)
    Then process with if/else the call to this functions works fine. The examples below only do error checking to show the result codes of this function. Normally you would want more.
    FAILS:
    $dbh = new PDO("informix...")
    $dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    try {
       $result = $dbh->query("asdfkjasdfkjasdfjk"); /* obvious sql error */
       if ($result) print "success!";
       }
    catch
       {
       $myeCode = $dbh->errorCode();
       /* do stuff with error */
       };
    $dbh=0;
    The error handler gets called but knows nothing about $dbh->errorCode or $dbh->errorInfo.
    WORKS:
    $dbh = new PDO("informix...")
    $dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_SILENT);
    $result = $dbh->query("asdfkjasdfkjasdfjk"); /* obvious sql error */
    if ($result) 
       {
       /* process result */
       print "success!";
       /* all done, didn't make any changes */
       $dbh->rollback();
       }
    else
       {
       $myeCode = $dbh->errorCode();
       print_r($myeCode);
       };
    $dbh=0; /* close connection */
    I hope this helps someone else.
    Cheers,
    David