All i get is a white site!

DubbelOseven

Hi, im new to PHP and i'm using wamp with php 5.2.5.
Some php-works. Like

<?php
phpinfo();
?>

and my index.php works fine.
But when I try my own site it just turns blank. No errors in Php error log, nothing. Some idé?

On the net I found it maybe is the memory, but it's set to "memory_limit 128M".

Edit: The code i use is

<?php
 $f = file_get_contents("http://xxx.xxx");
   $f = str_replace("\n", "", $f);
   $f = str_replace("   ", "", $f);
   preg_match_all('|<tr valign="middle"><td align="center" style="width: 557px;"><img src="(.*)" id="picture" /></td></tr>|i', $f, $out);
   echo $out[1][0]; 
?>

bpat1434

and in your php.ini, is display_errors off and log_errors off? If they're off, turn one of them on and try again.

I can't see a direct issue with your coding. The only thing I see is that url fopen wrappers might not be enabled which means you can't use file_get_contents() with a URL, it would have to be a local file.

Double check your php.ini settings and make sure that either display_errors is ON or log_errors is ON. If both are off, then turn one on, restart Apache and try your page again. At that point, either an error log is created with the error, or you'll see an error on your screen (depending upon which directive you set to "on").

DubbelOseven

it's like this:

display_errors = Off
log_errors = On

And as i said, there is no errors in the log 🙁

bpat1434

Do you have an error log destination set?

DubbelOseven

Yes. I tried a code I know didn't work. And i got:
[27-Mar-2008 19:28:24] PHP Parse error: syntax error, unexpected T_STRING, expecting ',' or ';' in C:\wamp\www\123.php on line 8

(think about the time is not the same here as "there"(on the forum))

halojoy

hi, there

I wonder if php is working at all 🙂
You should take a look, View Source of your 'blank page'

edit:
well, your php is working ... if you can get some ERROR reports from PHP
like you posted above

sorry, I missed it

Try some other php page, with a mixture of HTML and php
for example, test1.php:

<html>
<body>
hello everybody!
<?php

/*
INFO_GENERAL will show:
The configuration line, php.ini location, 
build date, 
Web Server, 
System and more.
*/
phpinfo( INFO_GENERAL );

?>
</body></html>

DubbelOseven

Ok i post a screen of it! http://img171.imageshack.us/my.php?image=phpji5.jpg
As you can see it works(?).

All i get on my blank page is.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<body>
</body>
</html>

the orginal code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<?php
 $f = file_get_contents("http://xxx.xxx");
   $f = str_replace("\n", "", $f);
   $f = str_replace("   ", "", $f);
   preg_match_all('|<tr valign="middle"><td align="center" style="width: 557px;"><img src="(.*)" id="picture" /></td></tr>|i', $f, $out);
   echo $out[1][0]; 
?>
<body>
</body>
</html>

Horizon88

Go line by line through your PHP code until you find out which line it is that's causing the problem - comment out all but $f = file_get_contents("..."); and then do a print_r($f); to see if that's getting set and executed, then uncomment the next line, etc, until you get the blank page again. Then you'll know which for sure is causing the problem.

halojoy

.....
</head>
<?php
$f = file_get_contents("http://xxx.xxx");
$f = str_replace("\n", "", $f);
$f = str_replace(" ", "", $f);
preg_match_all('|<tr valign="middle"><td align="center" style="width: 557px;"><img src="(.*)" id="picture" /></td></tr>|i', $f, $out);
echo $out[1][0];
?>
<body>
</body>
</html>

put you php code BETWEEN <body> </body> tags
and see if it helps

$out may be an empty variable, or something that does not display.
For example: BFALSE[/B] will often show nothing

I suggest a [man]var_dump/man of $out
and/or try temporary to use this change:

   preg_match_all('|<tr valign="middle"><td align="center" style="width: 557px;"><img src="(.*)" id="picture" /></td></tr>|i', $f, $out);
   echo 'My output: ' .  $out[1][0];

DubbelOseven

When i comment away them all and put print_r($f); i can see the page i want to see.
(If you haven't notice it, the whole thing is about to search thru the site and find a speciell picture and show only the picture.)

With or withou the other code comment i get the page I want to search thru to just find the picture.

EDIT:
no help if the code is in body or not.. :/

<?php
function get_contents($url){
      $ch = curl_init();
      curl_setopt ($ch, CURLOPT_URL, $url);
      curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, 5);
      curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
      $contents = curl_exec($ch);
      if (curl_errno($ch)) {
        $contents = '';
      } else {
        curl_close($ch);
      }

  if (!is_string($contents) || !strlen($contents)) {
    $contents = '';
  }

  return $contents;
   }

   $f = get_contents("http://xxx.xxx");
   $f = str_replace("\n", "", $f);
   $f = str_replace("   ", "", $f);
   preg_match_all('|<tr valign="middle"><td align="center" style="width: 557px;"><img src="(.*)" id="picture" /></td></tr>|i', $f, $out);
   echo $out[1][0]; 
?>

I also got this code for the same thing.

The other code (this one) gives me an error:
Fatal error: Call to undefined function curl_init() in C:\wamp\www\3.php on line 3
and line 3 is like

$ch = curl_init();

halojoy

see my previous post, again
I did edit
and add a couple of tests!!!
🙂

DubbelOseven

halojoy wrote:
see my previous post, again
I did edit
and add a couple of tests!!!
🙂

With that code I got a blank page with "My output:"

Oups! like this is it now:

preg_match_all('|<tr valign="middle"><td align="center" style="width: 557px;"><img src="(.*)" id="picture" /></td></tr>|i', $f, $out);
   echo 'My output: ' .  $out[1][0]; 
var_dump($f);

Then I can see the site, but at the top "My output: string(30100) ""

halojoy

okay
now we getting closer

now try this variable dump, so we can see what $out has got for value:

   

//temporary replace this line:
echo $out[1][0];
//with:
echo '<pre>'; var_dump($out); echo '</pre>';

DubbelOseven

halojoy wrote:
okay
now we getting closer

now try this variable dump, so we can see what $out has got for value:
   

//temporary replace this line:
echo $out[1][0];
//with:
echo '<pre>'; var_dump($out); echo '</pre>';

A blank page with:

array(2) {
  [0]=>
  array(0) {
  }
  [1]=>
  array(0) {
  }
}

If I also have

var_dump($f);

Then I get the page (I want to have)and at the top left is the same code.

array(2) {
  [0]=>
  array(0) {
  }
  [1]=>
  array(0) {
  }
}

bpat1434

What this means is that your Regular Expression is "wrong". You need to go back and rework the expression. It's capturing responses; however, it's not getting any matches.

DubbelOseven

Okey, now I have set up the page on my own server and as I can see it turns out well. The problem is when i filled the form and hit the button, the site just refreshes and the form is empty.

the form looks like this.

<form action="<?php $_SERVER['PHP_SELF']; ?>" method="POST" >

<input type="text" name="link" size="70" >  <input type="submit" name="Submit" value="Submit">


</form>

bpat1434

Do you do anything with the $_POST-ed data? or do you just display the form?

halojoy

DubbelOseven wrote:
The problem is when i filled the form and hit the button,
the site just refreshes and the form is empty.

<!-- code follows -->

<form action="<?php $_SERVER['PHP_SELF']; ?>" method="POST" >

<input type="text" name="link" size="70" >  

<input type="submit" name="Submit" value="Submit">

</form>

<?php $_SERVER['PHP_SELF']; ?> is same as:

<?php 
$variable;
?>

<?php 
$variable = 'My_Self';

$variable;         // do what?
echo $variable; // will display $var

?>

... think you get my hint about:
action="<?php echo 'something'; ?>"

regars 😉
halojoy

bpat1434

Still doesn't matter halojoy... an empty action attribute will in turn just post it to itself. The problem is that he doesn't do anything with the posted code (that I can tell).