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我試圖創建一個搜索表單來搜索我的mysql數據庫。使用php POST和mysql_fetch_數組搜索數據庫
我succeded對一個文本字段創建表單和提交BUTTOM。但是.. 當我將文本字段留空並點擊提交按鈕時，所有結果都顯示在我的search.php站點上的特定數據庫表中。
當我寫在文本字段任何東西（包含在從數據庫名稱文本），並點擊提交按鈕沒有搜索結果出現在所有。
正如你可以在代碼中看到我一直在試圖列出兩種diferent方式的搜索結果。第一個反應如上所述。最後一個沒有列出任何搜索結果。
有人知道爲什麼嗎？我在某處有錯別字還是錯過代碼中的任何內容？
在此先感謝。
這是我的index.php
<! DOCTYPE html>
<html>
<head>
<meta charset ="UTF-8">
<title> Townin </title>
<link rel="stylesheet" type="text/css" href="Townin/style.css">
<style>
body {background-color: white;}
header{background-color:#6ab47b;
border-color:#599a68;
}
header h1, h2 {margin-left: 20px;
color: white;
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}
h1, h1 {margin-left: 20px;
color: gray;
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}
p {margin-left: 20px;
color: gray;
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}
nav a, nav a:visited {
color: white;
background-color: #599a68;}
nav a.selected, nav a:hover{color: black;
background-color:#6ab47b;}
nav {
text-align:center;
padding: 0 0;
margin:20px 0 0;
height: 50 px;
background-color:#599a68;
}
nav ul {
list-style:none;
margin: 0px 10px;
padding: 0px;
}
nav ul li {
display: inline-block;
border-right: 1px solid #6ab47b;
text-align: center;
width: 250px;
padding:0px 0px;
}
nav ul li a {
display: block;
height: 40px;
width: 100%;
line-height:50px;
background-color: #599a68;
}
li a:hover {
background-color: #6ab47b;
}
a:link {
text-decoration: none;
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
color:gray;
}
a:visited {
color:gray;
}
.button {
background-color:#6ab47b;
color: #fff;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
font-weight: bold;
margin: 0px 20px;
padding:20px 20px;
border-radius: 100 %;
}
.button:visited {
color:white;
}
#bar-knap {
display: inline-block;
max-width: 100%;
border-radius:10%;
height:40%;
width:20%;
margin: 10px 10% 10px 10%;
border-style:solid;
border-color:gray;
}
#spise-knap {
display: inline-block;
max-width: 100%;
border-radius:10%;
height:40%;
width:20%;
margin:10px 10% 10px 10%;
border-style:solid;
border-color:gray;
}
footer {
background-color: #6ab47b;
color: white;
height: 70px;
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
text-align: center;
margin: 20px auto 0px auto;
}
</style>
</head>
<body>
<?php include ("Header2.php"); ?>
<a href="barer.php" >Barer
<img src="img/barknap.jpg" alt="Barer" id="bar-knap">
</a>
<a href="spisesteder.php" >Spisesteder
<img src="img/spiseknap.png" alt="Spisesteder" id="spise-knap">
</a>
<!--Search form-->
<p style="text-align:center;"> Søg mellem barer </p>
<br />
<br />
<form method="post" action="search.php">
<input type="text" name="search" />
<input type="submit" name="submit" value=" Search ">
</form>
<br />
<br />
<footer>
Natalie
</footer>
</body>
</html>
這是search.php中
<?php
//Connection to phpmyadmin
//Step1
$db = mysql_connect("host","username","password");
if (!$db) {
die("Database connection failed miserably: " . mysql_error());
}
//Step2
$db_select = mysql_select_db("databasename",$db);
if (!$db_select) {
die("Database selection also failed miserably: " . mysql_error());
}
$search = $_POST[search];
//SQL statement to select what to search
$sql="SELECT * FROM Brugerdatabase
WHERE 'Navn' like '%$search%' OR
'Mad genre' like '%$search%' OR
'Beliggenhed' like '%$search%'
ORDER BY Navn ASC";
// Run sql statement
$result = mysql_query($sql, $db) or die(mysql_error());
//Find out how many matches
$number= mysql_num_rows($result);
$pagetitle ="Search Results";
?>
<!doctype html>
<html lang="da">
<head>
<meta charset ="UTF-8">
<title>Søge resultater</title>
<link rel="stylesheet" type="text/css" href="style.css">
<style>
table {
border-collapse: collapse;
width: 80%;
margin:0 5%;
}
table th, td {
border-bottom:1px solid gray;
height: 50px;
vertical-align: center;
padding: 15px;
text-align: left;
}
tr:hover{background-color:#f5f5f5}
fieldset {
width: 60%;
margin:0 20%;
box-align: center;
}
</style>
</head>
<body>
<?php include ("Header2.php"); ?>
<!--Advanceret søge funktion-->
<p style="text-align:center;"> Søge resultater</p>
<?php
//------------------------------------
//This code inside the lines list the results when nothing is typed in the search field.
//Creates a loop to loop through results
while($row = mysql_fetch_array($result)){
echo "<table><tr><td>"
. $row['1'] .
"</td><td>"
. $row['4'] .
"</td><td>"
. $row['5'] .
"</td><td>"
. $row['6'] .
"</td><td>"
. $row['7'] .
"</td><td>"
. $row['8'] .
"</td></tr></table>";
}
//-----------------------------------
//-------------------------------
//This code inside the lines does not list anything at all..
// loop through results and get variables
while ($row=mysql_fetch_array($result)){
$navn =$row["Navn"];
$genre =$row["Mad genre"];
$beliggenhed =$row["Beliggenhed"];
}
// Tabel with search results
print " <tr>
<td>
<form method=\"post\" action=\"confirmdelete.php\">
<input type=\"hidden\" name=\"sel_record\" value=\"$id\">
<input type=\"submit\" name=\"delete\" value=\" Delete \">
<form>
<form method=\"post\" action=\"updateform.php\">
<input type=\"hidden\" name=\"sel_record\" value=\"$id\">
<input type=\"submit\" name=\"update\" value=\" Edit \">
</form>
</td>
<td><strong>$navn</strong><br />
Mad genre: $genre<br />
Beliggenhed: $beliggenhed</td>
</tr>";
print "</tr></table></body></html>";
//----------------------------
mysqli_close($db);
?>
</body>
</html>
'mysql'被棄用，使用'mysqli' –
A）我建議使用mysql_函數停止。相反，使用PDO或mysqli B）我不知道其他代碼，但快速查找和$ search = $ _POST [「search」];使用POST變量名稱周圍的引號。 – smozgur
嘗試回顯生成的查詢，並直接在數據庫中運行它;它工作嗎？作爲一個旁白 - 牢記任何人在其中搜索帶有撇號的東西都會破壞你的搜索;您應該查看使用準備好的語句，而不是將用戶輸入的數據直接放入查詢中 – andrewsi