Error Handling PHP Oracle Database - php

Question

I am trying to throw implement some error handling using Oracle and PHP. If I try to insert the statement into the DB table where the PK already exists, there is no INSERT performed - yet it returns that the data was added - when really it isnt - Need some help with the Error HAndling
require('connection.inc');
require('connection_db.inc');
$conn = db_connect();
$sql = oci_parse($conn,"INSERT INTO Schema.TableA (DOE, Trips) VALUES (:doe, :trp)");
oci_bind_by_name($sql, ':doe', $f1);
oci_bind_by_name($sql, ':trp', $f2);
oci_execute($sql);
<?
if($sql)
{
echo("Input data has been added<br><br>");
echo("<a href='link1.php'>View Links</a>");
}
else
{
echo("Input data has failed");
echo "</div>";
}
?>

Answer 1

You are evaluating the statement identifier $sql and not the result of the oci_execute call ...
oci_execute will return true if successful and false in case the query failed. See http://php.net/manual/en/function.oci-execute.php
$conn = oci_connect('hr', 'welcome', 'localhost/XE');
$stid = oci_parse($conn, 'SELECT * FROM employees');
$result = oci_execute($stid);
if(true === $result){
// Query successfully executed
echo "Hooary";
} else {
// Something went wrong
$e = oci_error($stid);
echo "Error: " . $e['message'];
}
Small tip, judging from the code you posted you seem to be in the process of learning php, i'd say take a look at PDO if you want to have a safer and easier way of interacting with your database. There is an oci driver available for PDO.
http://php.net/manual/en/book.pdo.php
http://php.net/manual/en/ref.pdo-oci.php