摘要：獲取執行的語句天前月前周前二進制安全簡單說就是傳入的參數支持二進制數據，包括這種在中表示字符串結束的字符返回由于是非二進制安全，誤判為相等返回負數捕捉異常中斷腳本執行是否完成異

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
//http://stackoverflow.com/questions/7716785/get-last-executed-query-in-php-pdo
var_dump( $query->queryString, $query->_debugQuery() );

composer require nesbot/carbon
use CarbonCarbon;
CarbonCarbon::setLocale("zh");
echo Carbon::now()->toDateTimeString();
echo Carbon::parse("2016-10-15")->toDateTimeString();
Carbon::parse("+3 days")->toDateTimeString(); 
echo Carbon::parse("next wednesday")->toDateTimeString();
echo Carbon::now()->modify("+15 days");
$first = Carbon::create(2012, 9, 5, 23, 26, 11);

$second = Carbon::create(2012, 9, 5, 20, 26, 11, "America/Vancouver");
var_dump($first->gt($second));                     // bool(false)
var_dump(Carbon::create(2012, 9, 5, 3)->between($first, $second));          // bool(true)

$dt = Carbon::now();
$dt->isWeekday();
echo Carbon::now()->subDays(5)->diffForHumans();               // 5天前

echo $dt->diffForHumans($dt->copy()->addMonth());              // 1月前
echo Carbon::now()->subDays(24)->diffForHumans();              // 3周前

//簡單說就是傳入的參數支持二進制數據，包括”