Question

I am facing a problem. So I thought I should post my question here. I want to know that if my query is invalid how can I code the query so that the PHP controller notify me about the query error. Here is my PHP query code.

 //assuming that the link $link to sql db has been already made
$Result = mysqli_query($link, 'SELECT * FROM books-table');

Is it possible to get notified whenever the query is wrong? please help

Answer 1

There is a simple way to do it. You can add an if condition to your code and use mysqli_error function to notify you about the invalid queries. Also you should save the query in a variable if you want to echo it easily so that you can also see the query. Here is your code with changes:

$yourquery = 'SELECT * FROM books-table';
$Result = mysqli_query($link, $yourquery);  
if(!$Result)
{
    echo 'There is an error in your query. Error='. mysqli_error($link);//to display error
    echo '</br> the query is: '. $yourquery; //to display the query
}

Hope it will help you.