Question

My same script works on another page, and the other queries on the same page are using the same connection string. For some reason when I run the ‘filled’ condition it says my connection string is null. “mysql_query() expects parameter 2 to be resource, null given in…” Yet if I run the ‘filled2’ condition it executes just fine. Can anyone see what I don’t?

if (isset($_POST['filled'])) {

    function updateRecords($varA,$varB,$varC){
        $updateMyTable = "UPDATE myTable SET colA='$varA', colB=$varB WHERE colC = $varC";
        if (!mysql_query($updateMyTable,$con)) {
            die('Error 1: '. mysql_error());
        } 
    }

    if ( isset( $_POST['inputArray'] ) ) {
        foreach ( $_POST['inputArray'] as $lilVars ) {
            updateRecords($lilVars['inputA'],$lilVars['inputB'],$lilVars['inputC']);
        }
    } 

} elseif (isset($_POST['filled2'])) {

    $sqlAddRecord="INSERT INTO myTable (ColX, ColY, ColZ2) VALUES ($VarX,'$VarY',$VarZ)";
    if (!mysql_query($sqlAddRecord,$con)) {
      die('Error 2: '.mysql_error());
    }

    echo "New Record Added";

}

Answer 1

it is because you are using $con inside of a function. You would need to include “global $con” inside your function definition to make it available to the function from the global scope.

function updateRecords(...) {
    global $con;
    ...
}