blank screen?

darkcarnival · #1 (**permalink**) 11-15-03, 01:57 PM

well finally my program is done

but, when i went to it only the main menu page showed. everything else displayed a blank screen. if you have any idea to what the problem is plz reply or email me

thx.

Chroder · #2 (**permalink**) 11-15-03, 03:13 PM

It could be lots of things, are you using any output buffering? How about some code?

darkcarnival · #3 (**permalink**) 11-15-03, 03:22 PM

well how much code do u want? and no i dont believe im using any buffering.

Chroder · #4 (**permalink**) 11-15-03, 08:55 PM

It could be so many things, so try to narrow things down. If you have NuSphere's phpEd, you can use the breakpoint feature to make PHP execute up to sepcific points. You can start at the beginning and keep going up a little bit until something happens (or stops happening).

Mabe something a little easier, try changing your error reporting. Stick this at the top of your script:

Code:

error_reporting(E_ALL);

darkcarnival · #5 (**permalink**) 11-15-03, 09:02 PM

ok so add that code to the top and it should tell me the problem?

but i think i know the problem, but does it matter how the program is written? like the i have it is like this:

menu
process add
add menu
process edit
edit menu
process delete
delete menu
process list
list menu

if thats the reason why the blank screen appear plz tell me and tel me how it should be.but i think thats the reason but not a 100% sure

optix · #6 (**permalink**) 11-16-03, 07:51 AM

You could just post maybe the first 30 or so lines of code. If you're getting a totally blank page the error is mor ethan likely at the beginning of your script. Also try viewing the source of the generated empty page. SOmetimes there will be a little bit of HTML in there that can give you some clue as to where your script died.

darkcarnival · #7 (**permalink**) 11-16-03, 08:39 AM

ok well i was thinking its because of how i set-up the script but im not sure. because the menu works just fine but the rest doesnt which sends me a small idea that something isnt set-up in the right order.

darkcarnival · #8 (**permalink**) 11-16-03, 09:53 AM

alright heres the line of code for a chunk of my script:

PHP Code:


			
if ($action == 'addurl')

{

if ($submit == "Add URL"){

  // The submit button was clicked!

include ("$path/config.php");



$db_connection = mysql_connect ($DB_HOST, $DB_USER, $DB_PASS);

  if ($db_connection == false){

    echo mysql_errno().": ".mysql_error()."<BR>";

    exit;

  }   

if ($search == "Artist")

{

  $query = "insert into SSearch_Artist (Name, Description, Address, Keywords) values ('$name', '$description', '$url', '$keyword')";

  $result = mysql_db_query ($DB_NAME, $query);

  if ($result){

    echo "Success! <A HREF=\"admin.php?action=menu\">click here</A> to go to main menu.";



  }

  else{

    echo mysql_errno().": ".mysql_error()."<BR>";

  }



  mysql_close ();

}

if ($search == "Lyrics")

{

  $query = "insert into SSearch_Lyric values (Name, Description, Address, Keywords) values ('$name', '$description', '$url', '$keyword')";

  $result = mysql_db_query ($DB_NAME, $query);

  if ($result){

    echo "Success! <A HREF=\"admin.php?action=menu\">click here</A> to go to main menu.";



  }

  else{

    echo mysql_errno().": ".mysql_error()."<BR>";

  }



  mysql_close ();

}

if ($search == "Photos")

{

  $query = "insert into SSearch_Photo values (Name, Description, Address, Keywords) values ('$name', '$description', '$url', '$keyword')";

  $result = mysql_db_query ($DB_NAME, $query);

  if ($result){

    echo "Success! <A HREF=\"admin.php?action=menu\">click here</A> to go to main menu.";



  }

  else{

    echo mysql_errno().": ".mysql_error()."<BR>";

  }



  mysql_close ();

}

if ($action =='add')

{

echo "<HTML>\n";

echo "<HEAD>\n";

echo "<TITLE>Admin Panel-Add URL</TITLE>\n";

echo "</HEAD>\n";

echo "<BODY BGCOLOR=\"#000000\" TEXT=\"#FFFFFF\" LINK=\"#66CCFF\">\n";

echo "<FONT FACE=\"Verdana\" SIZE=\"3\">\n";

echo "<CENTER><A HREF=\"admin.php?action=menu\">Back to Menu</A><BR><BR></CENTER>\n";



echo "Choose a catagory below to add an item into the database.<BR><BR>\n";



echo "<form method=\"post\" action=\"admin.php?action=addurl\">\n";

echo "Page Name:<input type=\"text\" name=\"name\">\n";

echo "<br>Description:<input type=\"text\" name=\"description\">\n";

echo "<br>Address:<input type=\"text\" name=\"url\" />\n";

echo "<br>Keyword(s):<input type=\"text\" name=\"keyword\" size=\"50\">\n";

echo "<br>Search Option:<BR>\n";

echo "<input type=\"radio\" name=\"search\" value=\"Artist\" checked>Artist\n";

echo "<input type=\"radio\" name=\"search\" value=\"Lyrics\">Lyrics\n";

echo "<input type=\"radio\" name=\"search\" value=\"Photos\">Photos\n";



echo "<br><input type=\"submit\" value=\"Add URL\">\n";

echo "</form>\n";

echo "</BODY>\n";

echo "</HTML>";

}

}

}

hope you can help now. this should be enough since the rest of my script is basically the same.

NeverMind · #9 (**permalink**) 11-16-03, 01:12 PM

Blank Screens are EVIL ..
it happened to me twice and I just couldn't figure out what is the problem and I had to re-write the whole file again from scratch , after this stupid thing the file works fine ... and you could imagine how tough it was becuase the file I was working on was a profile edit page !!

darkcarnival · #10 (**permalink**) 11-16-03, 04:15 PM

well i hope that wont be the case 4 me

but can you draw nething from my code i showed above? really dont want to re-write my code since it took me this far to here.