Help with php blank page?

Question

I run a fantasy basketball league. My php website/sql database is designed to let the person running the team do everything through the website - they can waive a player, an

Answer 1

Turn error reporting on for PHP in your php.ini file and see if any errors or warnings are reported. Also try removing the trailing whitespace at the end of the file before the last ?>, this has caused problems for me in the past.

Answer 2

Without going through your code in too much detail,I would suggest you look for any sections that may loop for a long time,without returning

Answer 3

Put the following right after the open PHP tag:

error_reporting(E_ALL);
ini_set('display_errors', 'On');

If this doesn't work, there is a probably a parse error and then you'll need to check the error log.

You will also need to escape your values that you are putting in the queries. This maybe causing a MySQL query to fail. If someone puts a " in $_POST['Team_Name'] your first query may fail.

Another final possible problem: are you sure it can still connect to MySQL?

An option to find the problem is commenting out large portions of code and then piece by piece uncommenting sectons.

Edit: So your first problem is the mysql_connect line. It needs to be changed to, notice the quotes: mysql_connect('localhost',$username,$password); Also, the variable $result and $queryt are spelt wrong in this line and used in their correct spelling: $resultt=mysql_query($queryt); I haven't checked the rest, but there maybe other errors that will cause your script to break. Some of the errors list are important to fix, but won't break your script.

Escaping: Check out the following page: http://php.net/manual/en/function.mysql-escape-string.php This basically prevents people from deleting your entire database.

Check the sample code on this page to find out how to connect to MySQL and check to see if you are connected.

Another suggestion: Are you sure none of your queries are failing? You probably want to check if the result from query is false before continuing, like:

if ($resultcat2 === false) {
    trigger_error('query failed ' . $sql, E_USER_ERROR);
    echo 'Sorry, there was a problem processing your request. Please try again later.';
    exit;
}

Answer 4

Also, to clarify - I have probably three dozen PHP files on the site - this is the ONLY one that has stopped working.

Answer 5

This is where I got...everything below the print line wouldn't show up if I put the print line below it.

$k=0;
$Salary=0;

print "<br> made it to this label: some_unique_label_name_here";

while ($k < $Fields_Counter)

{

$Type=$_POST['type'.$k];

$Salary=$_POST['cy'.$k];

$Index=$_POST['index'.$k];

$Check=$_POST['check'.$k];


$queryn="SELECT * FROM nuke_iblplyr WHERE pid = '$Index' ";
$resultn=mysql_query($queryn);

$playername=mysql_result($resultn,0,"name");

$players_team=mysql_result($resultn,0,"tid");

Answer 6

As an aside, you should change every variable from a get or post such as:

$Team_Offering = $_POST['Team_Name'];

to

$Team_Offering = mysql_real_escape_string($_POST['Team_Name']);

before using it in a mysql query, otherwise you are vunerable to SQL injection attacks.