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Thread: Searching For Data In A MySQL DB

  1. #1
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    Default Searching For Data In A MySQL DB

    Am new to php and was wondering if anybody could give me a hand... I am able to pull data out of my database and display it with no dramas. But what I want to try and do is have a textfield where a user can search and submit and they get a result... e.g. 'Yes that was in the database' or 'No try again'... If anyone can help would be much appareciated! I can post the code where I have managed to pull the data out of the database if that helps?

  2. #2
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    Well I tried this, but get a parse error on line 37 which is
    PHP Code:
    if ($trimmed == ""
    PHP Code:
    <html>

    <head>

    <title>Search</title>

    </head>

    <body>



    <form name="form" action="search.php" method="get">

      <input type="text" name="q" />

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

    </form>

    <?php

    if(empty($_SESSION['session_started']))
    {
        
    session_cache_expire(120);
        
    session_start();
        
    $_SESSION['session_started'] = "TRUE";
    }


      
    $var = @$_GET['q'] ;

      
    $trimmed trim($var//trim whitespace from the stored variable
      
      // 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 the mysql database

    include 'library/config.php';
    include 
    'library/opendb.php';

    $query  "SELECT Code FROM tblcodes where Code like '%$trimmed%";

     
    $numresults=mysql_query($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: &quot;" $trimmed "&quot; 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: &quot;" $var "&quot;</p>";



    // begin to show results set

    echo "Results";

    $count $s ;



    // now you can display the results returned

      
    while ($rowmysql_fetch_array($result)) {

      
    $title $row["1st_field"];



      echo 
    "$count.)&nbsp;$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 
    "&nbsp;<a href=\"$PHP_SELF?s=$prevs&q=$var\">&lt;&lt; 

      Prev 10</a>&nbsp&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 
    "&nbsp;<a href=\"$PHP_SELF?s=$news&q=$var\">Next 10 &gt;&gt;</a>";

      }



    $a $s + ($limit) ;

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

      
    $b $s ;

      echo 
    "<p>Showing results $b to $a of $numrows</p>";

    include 
    'library/closedb.php';
        
    ?>
    Any ideas?

  3. #3
    Join Date
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    Acton Ontario Canada.
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    Default

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

    You missed the semicolon.
    - Ryan "Boxxertrumps" Trumpa
    Come back once it validates: HTML, CSS, JS.

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