PDO: make $dbh available and maintain across all php files [closed] - php

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Closed 9 years ago.
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seem that I can't make it right.
Basically, three PHP files are used: - login.php, testconnect.php and numrows.php
numrows.php is the main file that first start played.
login.php and testconnect.php are good.
numrows.php:-
<?php
global $dbh1;
require_once "testconnect.php";
try
{
$stmt = $dbh1->prepare("select count(distinct mfg_code) from test");
$stmt->execute();
}
catch(PDOException $err)
{
$alertmsg = $err->getMessage();
}
$num = $stmt->fetch("PDO::FETCH_ASSOC:");
$num = json_encode($num);
echo $num;
?>
The log error from apache showed ""GET /testnumcards.php HTTP/1.1" 500 -". Again the error I encountered while debugging is "NetworkError: 500 Internal Server Error".
What is the right way to do?

Answer 1

Your problem not in making $dbh available but in inconsistent code and wrong syntax.
At least make your file this way, without all the useless and wrong code
<?php
require_once "testconnect.php";
$stmt = $dbh1->prepare("select count(distinct mfg_code) from test");
$stmt->execute();
$num = $stmt->fetch(PDO::FETCH_ASSOC); // note the proper syntax
$num = json_encode($num);
echo $num;
then look into error_log for the details