Search results for: "Query was empty"

How can the output of a MySQL query be checked for errors in a PHP script?

To check for errors in the output of a MySQL query in a PHP script, you can use the mysqli_error() function to retrieve any error messages generated b...

How can an empty MySQL query result in an error in PHP?

An empty MySQL query can result in an error in PHP if the query fails to return any results and the code tries to access data that doesn't exist. To p...

How can one ensure that the $_POST variable is not empty when using it in a SQL query in PHP?

When using the $_POST variable in a SQL query in PHP, it's important to ensure that the variable is not empty to avoid potential SQL injection vulnera...

How can one optimize the code to display only columns with non-empty values in a dynamic table generated from a SQL query?

To optimize the code to display only columns with non-empty values in a dynamic table generated from a SQL query, you can modify the SQL query to only...

How can one ensure that the POST data is not empty before executing the SQL query in PHP?

To ensure that the POST data is not empty before executing the SQL query in PHP, you can check if the $_POST array is not empty and contains the neces...