[SOLVED] gd library

[wrathican]

i need to enable gd library.

i have done it in php.ini but when i restart my apache server i get this error:

Unknown(): Unable to load dynamic library './php_gd2.dll' - The specific module could not be found.

anyone know why i could be getting this?

[per1os]

It seems like the directory is not right, where is the php.ini file located and what is the value for the extension_dir setting in the php.ini file ???

 

Usually the extensions directory is /extensions  not ./  the ./ would be assuming that the extensions directory houses a folder which houses the main php files. That is probably ont the case.

[wrathican]

its ok ive found how to change it. thanks for the reply though.

 

but since i have turned on gd library i am having errors with my page.

i get this:

 

Notice: Undefined index: id in C:\Program Files\Apache Group\Apache2\htdocs\cms\cms.php on line 53

 

that line reads like this:

 

$id = $_GET['id'];

 

why is this happening?

 

[per1os]

It is just a notice, not really critical but this is how you fix it:

 

$id = isset($_GET['id'])?$_GET['id']:''; // set default value to '' if $_GET['id'] has not been set.

 

the ? and : are called the ternary operator in case you were wondering.

[wrathican]

hmm that made things a bit worse

 

here is what i am using:

<?php 
	  $id = $_GET['id'];
	  
	  if(!isset($id)) 
	  { 
	  ?>Please choose a page to edit:</p>
          <p><?php
	  $query = 'SELECT cont_id, cont_title FROM cy_content';
	  
	  $result = mysql_query($query);
	  
	  while ($row = mysql_fetch_array($result, MYSQL_ASSOC))
	  {
	  echo "<a href='cms.php?id={$row['cont_id']}'>{$row['cont_title']}<br>";
	  }
	  
	  }
	  else{
	  
	  $query = "SELECT * FROM cy_content WHERE cont_id='".$id."'";
	  
	  $result = mysql_query($query);
	  
	  while ($row = mysql_fetch_row($result))
	  {
	  $a = $row[0];
	  $s = $row[2];
	  $d = $row[3];
	  };
	  //echo "this will show the form.";
	  
	  //echo "$a<br>";
	  //echo "$s<br>";
	  //echo "$d<br>";
	  };
	  ?><form action="" method="post">
<input name="textfield" type="text" value="<?php echo $s; ?>" />
<br />
<textarea name="textarea" cols="70" rows="10"><?php echo $d; ?></textarea>
<br />
<input type="submit" name="Submit" value="Submit" />
<input type="reset" name="Submit2" value="clear" />
</form> 

 

in the first section of the if statement it sees if a variable is set

if it isnt then it desplays a list of values from a database which are made into links that set the variable

if the variable is set it shows a form with the valuse of an array inside the input fields

 

but what is actually happening is when i load the page up a blank form is displayed, even though its not meant to be....

[per1os]

hmm that made things a bit worse

 

here is what i am using:

<?php 
	  $id = $_GET['id'];
	  
	  if(!isset($id)) 
	  { 
	  ?>Please choose a page to edit:</p>
          <p><?php
	  $query = 'SELECT cont_id, cont_title FROM cy_content';
	  
	  $result = mysql_query($query);
	  
	  while ($row = mysql_fetch_array($result, MYSQL_ASSOC))
	  {
	  echo "<a href='cms.php?id={$row['cont_id']}'>{$row['cont_title']}<br>";
	  }
	  
	  }
	  else{
	  
	  $query = "SELECT * FROM cy_content WHERE cont_id='".$id."'";
	  
	  $result = mysql_query($query);
	  
	  while ($row = mysql_fetch_row($result))
	  {
	  $a = $row[0];
	  $s = $row[2];
	  $d = $row[3];
	  };
	  //echo "this will show the form.";
	  
	  //echo "$a<br>";
	  //echo "$s<br>";
	  //echo "$d<br>";
	  };
	  ?><form action="" method="post">
<input name="textfield" type="text" value="<?php echo $s; ?>" />
<br />
<textarea name="textarea" cols="70" rows="10"><?php echo $d; ?></textarea>
<br />
<input type="submit" name="Submit" value="Submit" />
<input type="reset" name="Submit2" value="clear" />
</form> 

 

in the first section of the if statement it sees if a variable is set

if it isnt then it desplays a list of values from a database which are made into links that set the variable

if the variable is set it shows a form with the valuse of an array inside the input fields

 

but what is actually happening is when i load the page up a blank form is displayed, even though its not meant to be....

 

No you completely missed the point. I set it up on the variable declaration for a reason. $id does not need to be tested the index of $_GET at 'id' needs to be tested are you with me?

 

Maybe this will make it clearer.

 

<?php
if (isset($_GET['id'])) {
    $id = $_GET['id'];
}else {
    $id = ''; 
}

?>

 

Just checking if $id isset will not do you good because of course it is set as it is being set to $_GET['id'] even if that does not have a value. The notice is being thrown because the index in $_GET at 'id' was not set. Are you with me?

[wrathican]

ahhh yes. i see

thanks for that.

i will implement it when i get the chance

thanks