如何在搜索引擎上添加自動完成功能

下面是在index.php

<html> 
<head> 
<title>Title of your search engine</title> 
</head> 
<body> 
<form action='search.php' method='GET'> 
<center> 
<h1>My Search Engine</h1> 
<input type='text' size='90' name='search'></br></br> 
<input type='submit' name='submit' value='Search source code' ></br></br></br> 
</center> 
</form> 
</body> 
</html>

而這裏的search.php中

<?php 

$button = $_GET ['submit']; 
$search = $_GET ['search']; 

if(strlen($search)<=1) 
echo "Search term too short"; 
else{ 
echo "You searched for <b>$search</b> <hr size='1'></br>"; 
$m_Host = "localhost"; 
$m_User = "root"; 
$m_Pass = "Kyrene"; 
$m_Db = "ensemble"; 

$connect = mysql_connect($m_Host,$m_User,$m_Pass) or die(mysql_error()); 
echo "<br />"; 

mysql_select_db($m_Db,$connect) or die(mysql_error()); 
error_reporting(error_reporting()&~E_NOTICE); 

$search_exploded = explode (" ", $search); 

foreach($search_exploded as $search_each) 
{ 
$x++; 
if($x==1) 
$construct .="title LIKE '%$search_each%'"; 
else 
$construct .="AND title LIKE '%$search_each%'"; 

} 

$constructs ="SELECT * FROM test WHERE $construct"; 
$run = mysql_query($constructs); 

$foundnum = mysql_num_rows($run); 

if ($foundnum==0) 
echo "Sorry, there are no matching result for <b>$search</b>.</br></br>1. 
Try more general words. for example: If you want to search 'how to create a website' 
then use general keyword like 'create' 'website'</br>2. Try different words with similar 
meaning</br>3. Please check your spelling"; 
else 
{ 

echo "$foundnum results found !<p>"; 

$per_page = 1; 
$start = $_GET['start']; 
$max_pages = ceil($foundnum/$per_page); 
if(!$start) 
$start=0; 
$getquery = mysql_query("SELECT * FROM test WHERE $construct LIMIT $start, $per_page"); 

while($runrows = mysql_fetch_assoc($getquery)) 
{ 
$title = $runrows ['title']; 
$desc = $runrows ['description']; 
$url = $runrows ['url']; 

echo " 
<a href='$url'><b>$title</b></a><br> 
$desc<br> 
<a href='$url'>$url</a><p> 
"; 

} 

//Pagination Starts 
echo "<center>"; 

$prev = $start - $per_page; 
$next = $start + $per_page; 

$adjacents = 3; 
$last = $max_pages - 1; 

if($max_pages > 1) 
{ 
//previous button 
if (!($start<=0)) 
echo " <a href='search.php?search=$search&submit=Search+source+code&start=$prev'>Prev</a> ";  

//pages 
if ($max_pages < 7 + ($adjacents * 2)) //not enough pages to bother breaking it up 
{ 
$i = 0; 
for ($counter = 1; $counter <= $max_pages; $counter++) 
{ 
if ($i == $start){ 
echo " <a href='search.php?search=$search&submit=Search+source+code&start=$i'><b>$counter</b></a> "; 
} 
else { 
echo " <a href='search.php?search=$search&submit=Search+source+code&start=$i'>$counter</a> "; 
} 
$i = $i + $per_page;     
} 
} 
elseif($max_pages > 5 + ($adjacents * 2)) //enough pages to hide some 
{ 
//close to beginning; only hide later pages 
if(($start/$per_page) < 1 + ($adjacents * 2))   
{ 
$i = 0; 
for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++) 
{ 
if ($i == $start){ 
echo " <a href='search.php?search=$search&submit=Search+source+code&start=$i'><b>$counter</b></a> "; 
} 
else { 
echo " <a href='search.php?search=$search&submit=Search+source+code&start=$i'>$counter</a> "; 
} 
$i = $i + $per_page;          
} 

} 
//in middle; hide some front and some back 
elseif($max_pages - ($adjacents * 2) > ($start/$per_page) && ($start/$per_page) > ($adjacents * 2)) 
{ 
echo " <a href='search.php?search=$search&submit=Search+source+code&start=0'>1</a> "; 
echo " <a href='search.php?search=$search&submit=Search+source+code&start=$per_page'>2</a> .... "; 

$i = $start;     
for ($counter = ($start/$per_page)+1; $counter < ($start/$per_page) + $adjacents + 2; $counter++) 
{ 
if ($i == $start){ 
echo " <a href='search.php?search=$search&submit=Search+source+code&start=$i'><b>$counter</b></a> "; 
} 
else { 
echo " <a href='search.php?search=$search&submit=Search+source+code&start=$i'>$counter</a> "; 
} 
$i = $i + $per_page;     
} 

} 
//close to end; only hide early pages 
else 
{ 
echo " <a href='search.php?search=$search&submit=Search+source+code&start=0'>1</a> "; 
echo " <a href='search.php?search=$search&submit=Search+source+code&start=$per_page'>2</a> .... "; 

$i = $start;     
for ($counter = ($start/$per_page) + 1; $counter <= $max_pages; $counter++) 
{ 
if ($i == $start){ 
echo " <a href='search.php?search=$search&submit=Search+source+code&start=$i'><b>$counter</b></a> "; 
} 
else { 
echo " <a href='search.php?search=$search&submit=Search+source+code&start=$i'>$counter</a> "; 
} 
$i = $i + $per_page;    
} 
} 
} 

//next button 
if (!($start >=$foundnum-$per_page)) 
echo " <a href='search.php?search=$search&submit=Search+source+code&start=$next'>Next</a> ";  
} 
echo "</center>"; 
} 
} 
?>

我真的沒有什麼想法，我應該如何啓動它。任何幫助是極大的讚賞。謝謝！

來源

2014-05-14 user3596261

我會給你的怎麼辦一般shpill它。 1.使用ajax獲取數據。 2.呈現數據。如果你正在使用jQuery $（「＃搜索」）自動完成（ \t \t { \t \t \t來源：函數（請求，響應）{ \t \t \t \t $阿賈克斯（{ \t \t \t \t \t類型： '得到'， \t \t \t \t \t網址：「http://hostname.com/suggest.php」， \t \t \t \t \t數據：{ \t \t \t \t \t \t STR：的document.getElementById（「搜索」）值 \t \t \t \t \t}， \t \t \t \t \t成功：功能（結果）{ \t \t \t \t \t \t response（result.list）; \t \t \t \t \t}， \t \t \t \t \t數據類型： 'JSON'， \t \t \t \t \t全球：假 \t \t \t \t}）; \t \t \t} \t \t}）; – MontrealDevOne

不要忘記'Real_Escape'！ –

你可以使用jquery自動完成或typeahead.js – Magna

我會給你如何做的一般shpill。 1.使用ajax獲取數據。 2.呈現數據。如果你在你的suggest.php

<?php 
$str = $_GET['search']; 
//query database, get results 
echo json_encode(array('list'=>$mydata)); 
?>

和ID使用jQuery

$("#search").autocomplete(
{ 
     source : function(request, response) { 
      $.ajax({ 
       type : 'get', 
       url : "http://hostname.com/suggest.php", 
       data : { 
        search : document.getElementById("search").value 
       }, 
       success : function(result) { 
        response(result.list); 
       }, 
       dataType : 'json', 
       global : false 
      }); 
     } 
    });

=「搜索」，以搜索輸入的標籤

來源

2014-05-14 13:08:55 MontrealDevOne

如何在搜索引擎上添加自動完成功能

回答

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