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Handling MySQL errors in PHP


Handling MySQL errors in PHP

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Handling MySQL errors in PHP
Tag : php , By : ┬Áilad
Date : November 25 2020, 01:01 AM


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Handling MySQL errors from Symfony application


Tag : php , By : Ir0nh1de
Date : March 29 2020, 07:55 AM
wish of those help Your best bet is to make a custom error page, and optionally create a custom error handler to alert you of the error.
First, create a custom error page, just create a file in /path/to/project/config/error/error.html.php. Symfony will automatically use your error page instead of its own if it exists.
class ProjectConfiguration extends sfProjectConfiguration
{
  public function setup()
  {
    //...
    $this->dispatcher->connect('application.throw_exception', array($this, 'listenToException'));
  }

  public function listenToException(sfEvent $event)
  {
    $handler = new myExceptionHandler($event);
    $handler->doSomethingHere();
  }
}
class myExceptionHandler
{
  protected $event;

  public function __construct(sfEvent $event)
  {
    $this->event = $event;
  }

  protected function getMailer()
  {
    return sfContext::getInstance()->getMailer();
  }

  public function notify()
  {
    $subject = 'Uncaught Exception';
    $body = $this->event->getSubject();

    $mailer = $this->getMailer();
    $mailer->composeAndSend('root@yourserver.com', 'you@youremail.com', $subject, $body);
  }
}

Handling MySQL Errors when using Ajax


Tag : jquery , By : orneka
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I would move all your error logic from jQuery to PHP. You can respond with a simple JSON object that can hold the status (success or error), code (if needed), message, and even data, if you want to provide specific results.
For example, you make a request like this:
$.ajax({
  type: 'POST',
  url: url,
  data: $("#frmSurvey").serialize(),
  success: function(result){
    var json = $.parseJSON(result);
    if(json.response.status == 'success') {
      // do something
    } else {
      // look at message or code to perform specific actions
    }
  }
});
$result = array(
  'response' => array(
    'status' => 'error',
    'code' => '1', // whatever you want
    'message' => 'Could not connect to the database.'
  )
);    

echo json_encode($result);

Handling errors in PDO when MySQL query fails


Tag : php , By : codelurker
Date : March 29 2020, 07:55 AM
I hope this helps you . Nope, it is not.
Just like almost every PHP user, you have quite vague and uncertain idea on error handling. And the code mostly looks like a dummy code from sandbox example. Speaking of your current approach, frankly - it's just terrible. On a live site it will only scare an innocent user, while webmaster would have no idea what's going on.
$dbh->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
private function checkUser($user)
{
    $stmt = $this->_PDO->prepare("SELECT 1 FROM users WHERE name=?");
    $stmt->execute(array($user));
    return $stmt->fetchColumn();
}

How to connect MySQL(WAMP) database with PHP, and handling errors?


Tag : php , By : Helpful Dude
Date : March 29 2020, 07:55 AM
this will help As per your original question
if (!empty($_post)){
if (!empty($_POST)){
$connection = msql_connect(localhost, root, "" );
missing "y" => ^
$connection = mysql_connect(localhost, root, "" );
<input type="email" name="name" placeholder="name@something.com"/ required>
<input type="email" name="email" placeholder="name@something.com"/ required>
<label for="name">Name:</label>
<input type="text" name="name" required />
$query = "INSERT INTO 'user'
$query = "INSERT INTO `user`
$query = "INSERT INTO user

handling mysql constraint errors


Tag : mysql , By : user147496
Date : March 29 2020, 07:55 AM
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