Question

I have created a custom function and I am getting this error. I dont think there is a “parse error” in my script.

Parse error: syntax error, unexpected ',', expecting '&' or T_VARIABLE in C:\wamp\www\web template\test.php on line 8

---

<?php
require('global script/php/dbConnect.php');

$varName = 'sd';

echo checkDBDuplicate('account_list', 'memberID', $varName);

function checkDBDuplicate(tableName, dbFieldName, variableName) 
{
    $tableName = tableName;
    $dbFieldName = dbFieldName;
    $variableName = variableName;

    $searchDuplicate = mysql_query('
        SELECT $dbFieldName
        FROM $tableName
        WHERE $dbFieldName = $variableName
        ') or die(mysql_error());
    $countRow = mysql_num_rows($searchDuplicate);

    return $countRow;
}
?>

The purpose of this script is to test if I can use a variable in a SELECT statement.

Answer 1

Variables should have a $ prefix. so

function checkDBDuplicate(tableName, dbFieldName, variableName) {

is wrong, make it

function checkDBDuplicate($tableName, $dbFieldName, $variableName) {

obviously, further on the same is true, so:

$tableName = tableName;
$dbFieldName = dbFieldName;
$variableName = variableName;

needs the same treatment