Undefined Variable: PHP_SELF, pls help

cottonbuds2005 · October 24, 2009

Hi,

Im a newbie on PHP / MySQL programming and Im running a script to search one field on my DB table. The results will show after I key in my search word but there's an error below that says: Undefined variable: PHP_SELF in C:\wamp\www\ITInventoryApplication\ITInventory\files\SearchSerial.php on line 105. Also the link to the next page is not clickable.

When I change to $_SERVER['PHP_SELF'] I get:

Parse error: parse error, expecting `T_STRING' or `T_VARIABLE' or `T_NUM_STRING'.

Pls help me... thanks.

___________________________________________________________

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<?php

// Get the search variable from URL

$var = @$_GET['q'] ;

$trimmed = trim($var); //trim whitespace from the stored variable

// rows to return

$limit=10;

// check for an empty string and display a message.

if ($trimmed == "")

{

echo "Please enter a search...";

exit;

}

// check for a search parameter

if (!isset($var))

{

echo "We dont seem to have a search parameter!";

exit;

}

//connect to your database ** EDIT REQUIRED HERE **

mysql_connect("localhost","root",""); //(host, username, password)

//specify database ** EDIT REQUIRED HERE **

mysql_select_db("itinventory") or die("Unable to select database"); //select which database we're using

// Build SQL Query

$query = "select * from assetsdb where SerialNo like \"%$trimmed%\"

order by SerialNo"; // EDIT HERE and specify your table and field names for the SQL query

$numresults=mysql_query($query);

$numrows=mysql_num_rows($numresults);

// If we have no results, offer a google search as an alternative

if ($numrows == 0)

{

echo "<h4>Results</h4>";

echo "Sorry, your search: "" . $trimmed . "" returned zero results";

// google

echo "<a href=\"http://www.google.com/search?q="

. $trimmed . "\" target=\"_blank\" title=\"Look up

" . $trimmed . " on Google\">Click here</a> to try the

search on google";

}

// next determine if s has been passed to script, if not use 0

if (empty($s)) {

$s=0;

}

// get results

$query .= " limit $s,$limit";

$result = mysql_query($query) or die("Couldn't execute query");

// display what the person searched for

echo "You searched for: "" . $var . """;

// begin to show results set

echo "Results";

$count = 1 + $s ;

// now you can display the results returned

while ($row= mysql_fetch_array($result)) {

$title = $row["SerialNo"];

echo "$count.) $title" ;

$count++ ;

}

$currPage = (($s/$limit) + 1);

//break before paging

echo " ";

// next we need to do the links to other results

if ($s>=1) { // bypass PREV link if s is 0

$prevs=($s-$limit);

print " <a href=\"$PHP_SELF?s=$prevs&q=$var\"><<

Prev 10</a>&nbsp ";

}

// calculate number of pages needing links

$pages=intval($numrows/$limit);

// $pages now contains int of pages needed unless there is a remainder from division

if ($numrows%$limit) {

// has remainder so add one page

$pages++;

}

// check to see if last page

if (!((($s+$limit)/$limit)==$pages) && $pages!=1) {

// not last page so give NEXT link

$news=$s+$limit;

echo " <a href=\"$_SERVER['PHP_SELF']?s=$news&q=$var\">Next 10 >></a>";

}

$a = $s + ($limit) ;

if ($a > $numrows) { $a = $numrows ; }

$b = $s + 1 ;

echo "Showing results $b to $a of $numrows";

?>

<head>

<title>Untitled Document</title>

</head>

<body>

</body>

</html>

smerny · October 24, 2009

please put your code within code tags..

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<?php

  // Get the search variable from URL

  $var = @$_GET['q'] ;
  $trimmed = trim($var); //trim whitespace from the stored variable

// rows to return
$limit=10;

// check for an empty string and display a message.
if ($trimmed == "")
  {
  echo "<p>Please enter a search...</p>";
  exit;
  }

// check for a search parameter
if (!isset($var))
  {
  echo "<p>We dont seem to have a search parameter!</p>";
  exit;
  }

//connect to your database ** EDIT REQUIRED HERE **
mysql_connect("localhost","root",""); //(host, username, password)

//specify database ** EDIT REQUIRED HERE **
mysql_select_db("itinventory") or die("Unable to select database"); //select which database we're using

// Build SQL Query 
$query = "select * from assetsdb where SerialNo like \"%$trimmed%\" 
  order by SerialNo"; // EDIT HERE and specify your table and field names for the SQL query

$numresults=mysql_query($query);
$numrows=mysql_num_rows($numresults);

// If we have no results, offer a google search as an alternative

if ($numrows == 0)
  {
  echo "<h4>Results</h4>";
  echo "<p>Sorry, your search: "" . $trimmed . "" returned zero results</p>";

// google
echo "<p><a href=\"http://www.google.com/search?q="
  . $trimmed . "\" target=\"_blank\" title=\"Look up
  " . $trimmed . " on Google\">Click here</a> to try the
  search on google</p>";
  }

// next determine if s has been passed to script, if not use 0
  if (empty($s)) {
  $s=0;
  }

// get results
  $query .= " limit $s,$limit";
  $result = mysql_query($query) or die("Couldn't execute query");

// display what the person searched for
echo "<p>You searched for: "" . $var . ""</p>";

// begin to show results set
echo "Results";
$count = 1 + $s ;

// now you can display the results returned
  while ($row= mysql_fetch_array($result)) {
  $title = $row["SerialNo"];

  echo "$count.) $title" ;
  $count++ ;
  }

$currPage = (($s/$limit) + 1);

//break before paging
  echo "<br />";

  // next we need to do the links to other results
  if ($s>=1) { // bypass PREV link if s is 0
  $prevs=($s-$limit);
  print " <a href=\"$PHP_SELF?s=$prevs&q=$var\"><<
  Prev 10</a>&nbsp ";
  }

// calculate number of pages needing links
  $pages=intval($numrows/$limit);

// $pages now contains int of pages needed unless there is a remainder from division

  if ($numrows%$limit) {
  // has remainder so add one page
  $pages++;
  }

// check to see if last page
  if (!((($s+$limit)/$limit)==$pages) && $pages!=1) {

  // not last page so give NEXT link
  $news=$s+$limit;

  echo " <a href=\"$_SERVER['PHP_SELF']?s=$news&q=$var\">Next 10 >></a>";
  }

$a = $s + ($limit) ;
  if ($a > $numrows) { $a = $numrows ; }
  $b = $s + 1 ;
  echo "<p>Showing results $b to $a of $numrows</p>";

?>
<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>

cottonbuds2005 · October 24, 2009

Hi smerny,

Forgive me because Im very new and still a dummy in programming. What do you mean by 'please put your code within code tags..'?

thanks

smerny · October 24, 2009

what I did in my previous post, just makes it easier to read

  if (!((($s+$limit)/$limit)==$pages) && $pages!=1) {

  // not last page so give NEXT link
  $news=$s+$limit;

  echo " <a href=\"$_SERVER['PHP_SELF']?s=$news&q=$var\">Next 10 >></a>";
  }

this is the code giving you problems?

for "Parse error: parse error, expecting `T_STRING' or `T_VARIABLE' or `T_NUM_STRING'.", what line is that error on?

cottonbuds2005 · October 24, 2009

Yes thats the line thats giving me the problem. Same line 105 just edited to include $_SERVER

thanks

smerny · October 24, 2009

seems odd to me that you would get that error from that... but anyway, this is how i would normally write that code, see if it works

echo " <a href=\"".$_SERVER['PHP_SELF']."?s=".$news."&q=".$var."\">Next 10 >></a>";

cottonbuds2005 · October 24, 2009

Hi,

The error disappeared after your suggestion but the link to the next pages is still not clickable. Nothing happens when you click >>Next.

Thanks for helping me...

mikesta707 · October 24, 2009

I noticed this

print " <a href=\"$PHP_SELF?s=$prevs&q=$var\"><<

$PHP_SELF should be $_SERVER['PHP_SELF']

smerny · October 24, 2009

Hi,

The error disappeared after your suggestion but the link to the next pages is still not clickable. Nothing happens when you click >>Next.

Thanks for helping me...

view source on that area and see what it looks like...

cottonbuds2005 · October 24, 2009

this are the codes in reference to PHP_SELF, both edited according to smerny's suggestion. mikesta707, i had the parse error when I did your code idea.

>>Next Page is still not clickable. Hope there are any more suggestions

print " <a href=\"".$_SERVER['PHP_SELF']."?s=".$prevs."&q=".$var."\"><<

Prev 10</a>&nbsp ";

echo " <a href=\"".$_SERVER['PHP_SELF']."?s=".$news."&q=".$var."\">Next 10 >></a>";

smerny · October 24, 2009

on your browser, rightclick somewhere on that page and "view source"

php_girl101 · June 6, 2010

the code works and the i tried to c the source

it shows the relative path like this but nothing happens when i click the link

...<a href="/search.php?s=10&q=o">Next 10 >></a>Showing results 1 to 10 of 120

haku · June 6, 2010

It may be a CSS issue - you have an element over top of the link.

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Undefined Variable: PHP_SELF, pls help

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