使用PHP查詢db，通過AJAX獲取結果作為變量，再次使用初始變量的值查詢db
[英]Using PHP to query db, fetch results via AJAX as variable, query db again using values of initial variable
問題描述
這真的是問題:)
當我把它放在子彈點上我想要做的事情時更清楚了，所以在這里：
- 我在頁面上有兩個表單，一個搜索表單和一個“編輯配置文件”表單。 兩者都處於正常工作狀態。
- 編輯配置文件表單通過我的MySQL tbl的行分頁，允許我編輯每列的值。 當前設置為包括所有行（即所有存儲的配置文件）。
- 搜索表單采用17個不同的搜索變量中的任何一個，並搜索同一個表以查找配置文件或一組配置文件。
- 我希望能夠輸入一個搜索詞（例如Name：'Bob'），查詢我正在做的tbl，但是使用AJAX將結果的唯一ID作為存儲在變量中的數組返回。 然后我希望能夠異步地將該變量提供給我的編輯配置文件表單查詢（搜索表單將有一個提交按鈕...）所以我現在可以翻閱我表格中的所有行（例如，名稱包含'Bob '），只有那些行。
以上是否可以使用相關語言？ 誰能幫我把它們拼湊起來？
我正處於PHP和MySQL的中間階段，但對於AJAX來說絕對是新手。 我只用過它來在一個定義的區域顯示一個文本字符串 - 就像在各地的演示中看到的那樣:)因此，對待我就像一個五歲的孩子非常感謝！
以下是我當前的搜索查詢和編輯個人資料表單，如果他們有幫助的話：
編輯個人資料表格：
//pagination base
if (isset($_GET['page'])) { $page = $_GET['page']; }
else { $page = 1; }
$max_results = 1;
$from = (($page * $max_results) - $max_results);
$total_results = mysql_result(mysql_query("SELECT COUNT(*) as Num FROM profiles"),0);
$total_pages = ceil($total_results / $max_results);
echo '<span id="pagination">' . 'Record ' . $page . ' of ' . $total_results . ' Records Returned. ';
if($total_results > $max_results)
{
if($page > 1)
{ $prev = ($page - 1);
echo "<a href=\"".$_SERVER['PHP_SELF']."?page=$prev\"><input type='submit' value='<<' /></a>";
}
if($page == 1)
{ echo "<input type='submit' value='<<' />"; }
if($page < $total_pages)
{ $next = ($page + 1);
echo "<a href=\"".$_SERVER['PHP_SELF']."?page=$next\"><input type='submit' value='>>' /></a>";
}
if($page == $total_pages)
{ echo "<input type='submit' value='>>' />";
}
}
echo '</span></p>';
?>
// the query, currently selecting all but which I would have include a WHERE clause (WHERE ProfileID = $profileid...)
<?php
$sql = ("SELECT * FROM profiles
ORDER BY ProfileID
LIMIT $from, $max_results");
$rs = mysql_query($sql);
while($row = mysql_fetch_array($rs))
{
$profile = $row['ProfileID'];
?>
<form id="profile-form" action="profile-engine.php" method="post">
<input type="hidden" name="formid" value="edit-profile">
<input type="hidden" name="thisprofile" value="<?php echo $profile; ?>">
<table id="profile-detail" class="profile-form">
<tr>
<td>
<label for="profile-name">Name:</label>
<?php
$nameresult = mysql_query("SELECT ProfileName
FROM profiles
WHERE ProfileID = '$profile'");
$row = mysql_fetch_array($nameresult);
?>
<input type="text" class="text" name="profile-name" id="profile-name" value="<?php echo $row['ProfileName']; ?>" />
</td>
//goes on in this vein for another 16 inputs :)
搜索查詢：
//connection established
$query = "SELECT * FROM profiles";
$postParameters = array("name","height","gender","class","death","appro","born","tobiano","modifier","adult","birth","sire","dam","breeder","owner","breed","location");
$whereClause = " WHERE 1 = 1";
foreach ($postParameters as $param) {
if (isset($_POST[$param]) && !empty($_POST[$param])) {
switch ($param) {
case "name":
$whereClause .= " AND ProfileName LIKE '%".$_POST[$param]."%' ";
break;
case "height":
$whereClause .= " AND ProfileHeight='".$_POST[$param]."' ";
break;
case "gender":
$whereClause .= " AND ProfileGenderID='".$_POST[$param]."' ";
break;
//more cases....
}
}
}
$query .= $whereClause;
$result = mysql_query("$query");
$values = array();
while ($row = mysql_fetch_array($result)) {
$values[] = $row['ProfileID'];
}
/*
//just me checking that it worked...
foreach( $values as $value => $id){
echo "$id <br />";
}
*/
mysql_close($con);
所以你有它！ 在此先感謝您的幫助！
1 個解決方案
解決方案1
0 已采納 2011-05-17 20:22:38
怎么樣：搜索將搜索詞復制到局部變量，服務返回你持有的結果數組，然后分頁使用JS將值放入適當的字段。 如果您更改並保存，則會提交編輯內容，包括用於重新查詢服務的原始搜索字詞，並返回更新后的數組...根據需要重復
這里有一些示例代碼（這里只有兩個搜索字段，我知道您需要更多代碼）：
<!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>
<script type="text/javascript">
var query = new Object();
var resp;
var i;
function next(on){
i=on+1;
if(i==resp.results.length){i--;}
fillForm(i);
}
function prior(on){
i=on-1;
if(i<0){i++;}
fillForm(i);
}
function fillForm(i){
document.getElementById("paginate").innerHTML='<button onclick="prior('+i+')"><</button>'+(i+1)+' of '+resp.results.length+'<button onclick="next('+i+')">></button>';
document.getElementById("name").value=resp.results[i].name;
document.getElementById("height").value=resp.results[i].height;
document.getElementById("gender").value=resp.results[i].gender;
document.getElementById("class").value=resp.results[i].class;
document.getElementById("death").value=resp.results[i].death;
document.getElementById("appro").value=resp.results[i].appro;
document.getElementById("born").value=resp.results[i].born;
document.getElementById("tobiano").value=resp.results[i].tobiano;
document.getElementById("modifier").value=resp.results[i].modifier;
document.getElementById("adult").value=resp.results[i].adult;
document.getElementById("birth").value=resp.results[i].birth;
document.getElementById("sire").value=resp.results[i].sire;
document.getElementById("dam").value=resp.results[i].dam;
document.getElementById("breeder").value=resp.results[i].breeder;
document.getElementById("owner").value=resp.results[i].owner;
document.getElementById("breed").value=resp.results[i].breed;
document.getElementById("location").value=resp.results[i].location;
document.getElementById("id").value=resp.results[i].id;
document.getElementById("saveButton").innerHTML='<button onclick="save()">Save</button>';
}
function getData(){
query.name=document.getElementById('query_name').value;
query.gender=document.getElementById('query_gender').value;
var variables='';
variables+='name='+query.name;
variables+='&gender='+query.gender;
var xmlhttp;
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
resp = JSON.parse(xmlhttp.responseText);
fillForm(0);
}
}
xmlhttp.open("GET","searchNav.php?"+variables,true);
xmlhttp.send();
}
function save(){
var saving="";
saving+='?q='+query;
saving+='&name='+document.getElementById('name').value;
saving+='&height='+document.getElementById('height').value;
saving+='&gender='+document.getElementById('gender').value;
saving+='&class='+document.getElementById('class').value;
saving+='&death='+document.getElementById('death').value;
saving+='&appro='+document.getElementById('appro').value;
saving+='&born='+document.getElementById('born').value;
saving+='&tobiano='+document.getElementById('tobiano').value;
saving+='&modifier='+document.getElementById('modifier').value;
saving+='&adult='+document.getElementById('adult').value;
saving+='&birth='+document.getElementById('birth').value;
saving+='&sire='+document.getElementById('sire').value;
saving+='&dam='+document.getElementById('dam').value;
saving+='&owner='+document.getElementById('owner').value;
saving+='&breed='+document.getElementById('breed').value;
saving+='&breeder='+document.getElementById('breeder').value;
saving+='&location='+document.getElementById('location').value;
saving+='&id='+document.getElementById('id').value;
var xmlhttp;
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
resp = JSON.parse(xmlhttp.responseText);
fillForm(0);
}
}
xmlhttp.open("GET","saveEdits.php"+saving,true);
xmlhttp.send();
}
</script>
</head>
<body>
<div id="search">
<table>
<tr><td>Name:</td><td><input type="text" id="query_name" /></td></tr>
<tr><td>Gender:</td><td><input type="text" id="query_gender" /></td></tr></table>
<button onclick="getData()">Search</button>
</div>
<div id="results">
<div id="paginate"></div>
<input type="hidden" id="id" />
<table>
<tr><td>Name:</td><td><input type="text" id="name" /></td></tr>
<tr><td>Height:</td><td><input type="text" id="height" /></td></tr>
<tr><td>Gender:</td><td><input type="text" id="gender" /></td></tr>
<tr><td>Class:</td><td><input type="text" id="class" /></td></tr>
<tr><td>Death:</td><td><input type="text" id="death" /></td></tr>
<tr><td>Appro:</td><td><input type="text" id="appro" /></td></tr>
<tr><td>Born:</td><td><input type="text" id="born" /></td></tr>
<tr><td>Tobiano:</td><td><input type="text" id="tobiano" /></td></tr>
<tr><td>Modifier:</td><td><input type="text" id="modifier" /></td></tr>
<tr><td>Adult:</td><td><input type="text" id="adult" /></td></tr>
<tr><td>Birth:</td><td><input type="text" id="birth" /></td></tr>
<tr><td>Sire:</td><td><input type="text" id="sire" /></td></tr>
<tr><td>Dam:</td><td><input type="text" id="dam" /></td></tr>
<tr><td>Breeder:</td><td><input type="text" id="breeder" /></td></tr>
<tr><td>Owner:</td><td><input type="text" id="owner" /></td></tr>
<tr><td>Breed:</td><td><input type="text" id="breed" /></td></tr>
<tr><td>Location:</td><td><input type="text" id="location" /></td></tr>
</table>
<div id="saveButton"></div>
</div>
</body>
</html>
和搜索：
<?php
//connection established
$query = "SELECT * FROM profiles";
$postParameters = array("name","height","gender","class","death","appro","born","tobiano","modifier","adult","birth","sire","dam","breeder","owner","breed","location");
$whereClause = " WHERE 1 = 1";
foreach ($postParameters as $param) {
if (isset($_POST[$param]) && !empty($_POST[$param])) {
$whereClause .= " AND ".$param."='".$_POST[$param]."'";
}
}
$query .= $whereClause;
$result = mysql_query("$query");
echo "{\"results\":";
if($row = mysql_fetch_array($result,MYSQL_ASSOC)) {
echo "[";
echo "{\"name\":\"".$row["name"]."\",";
echo "\"height\":\"".$row["height"]."\",";
echo "\"gender\":\"".$row["gender"]."\",";
echo "\"class\":\"".$row["class"]."\",";
echo "\"death\":\"".$row["death"]."\",";
echo "\"appro\":\"".$row["appro"]."\",";
echo "\"born\":\"".$row["born"]."\"";
echo "\"tobiano\":\"".$row["tobiano"]."\"";
echo "\"modifier\":\"".$row["modifier"]."\"";
echo "\"adult\":\"".$row["adult"]."\"";
echo "\"birth\":\"".$row["birth"]."\"";
echo "\"sire\":\"".$row["sire"]."\"";
echo "\"dam\":\"".$row["dam"]."\"";
echo "\"breeder\":\"".$row["breeder"]."\"";
echo "\"owner\":\"".$row["owner"]."\"";
echo "\"breed\":\"".$row["breed"]."\"";
echo "\"location\":\"".$row["location"]."\"";
//echo "\"id\":\"".$row["id"]."\"";
echo "}";
}
else{
echo "\"no\"}";
exit;
}
while($row = mysql_fetch_array($data,MYSQL_ASSOC)){
echo ",{\"name\":\"".$row["name"]."\",";
echo "\"height\":\"".$row["height"]."\",";
echo "\"gender\":\"".$row["gender"]."\",";
echo "\"class\":\"".$row["class"]."\",";
echo "\"death\":\"".$row["death"]."\",";
echo "\"appro\":\"".$row["appro"]."\",";
echo "\"born\":\"".$row["born"]."\"";
echo "\"tobiano\":\"".$row["tobiano"]."\"";
echo "\"modifier\":\"".$row["modifier"]."\"";
echo "\"adult\":\"".$row["adult"]."\"";
echo "\"birth\":\"".$row["birth"]."\"";
echo "\"sire\":\"".$row["sire"]."\"";
echo "\"dam\":\"".$row["dam"]."\"";
echo "\"breeder\":\"".$row["breeder"]."\"";
echo "\"owner\":\"".$row["owner"]."\"";
echo "\"breed\":\"".$row["breed"]."\"";
echo "\"location\":\"".$row["location"]."\"";
//echo "\"id\":\"".$row["id"]."\"";
echo "}";
}
echo "]}";
?>
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