Bug #726: PHP/PG ERROR: parser: parse error at or near ","

Paul Redd-LaFlamme (predd-laflamme(at)strata-g(dot)com) reports a bug with a severity of 1
The lower the number the more severe it is.

Short Description
PHP/PG ERROR: parser: parse error at or near ","

Long Description
The SQL statement
INSERT INTO users (user_name, comp_id, password) VALUES ('Yuk',8,'Yuk');

works fine when typed directly into the postgres shell, but yields the error

ERROR: parser: parse error at or near ","

when, and only when the '8' is inserted into the string in PHP by any means.

In other words, the SQL statement provided works fine when hardcoded, but fails every single time (making my application useless) when the integer insert value is inserted into the PHP statement by any means.

I am using PostgreSQL 7.2.1 and PHP 4.2.1 on Redhat Linux. I couldn't find any instructions to find TODO so I can find out if anyone else has had a similar problem. Please advise me how to do so.

Sample Code
THE FOLLOWING WORK:
INSERT INTO users (user_name, comp_id, password) VALUES ('Yuk',8,'Yuk'); [typed directly into terminal]

$strSQL = "INSERT INTO users (user_name, comp_id, password) VALUES ('Yuk',8,'Yuk');";
$strResult = pg_query($dbConn, $strSQL);

$strSQL = "INSERT INTO users (user_name, comp_id, password) VALUES ($userName,8,$password);";
$strResult = pg_query($dbConn, $strSQL);

THE FOLLOWING FAIL:
$strSQL = "INSERT INTO users (user_name, comp_id, password) VALUES ($usernanme,$someinteger,$password);";
$strResult = pg_query($dbConn, $strSQL);

$strSQL = sprintf("INSERT INTO users (user_name, comp_id, password) VALUES (%s,%s,%s);", $usernanme, $someinteger, $password);
$strResult = pg_query($dbConn, $strSQL);

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