PHP Localhost重定向您太多次
[英]PHP Localhost redirected you too many times
问题描述
I try to upload data to a database and then deploy them, the problem is that I see 
我尝试将数据上传到数据库然后部署它们，问题是我看到了
Localhost redirected you too many times
I delete a line of code where I try to call the file where I make the connection with my database and works but can´t make the SELECT * FROM PRUEBA.DBO.AREAS 我删除了一行代码，在其中尝试调用与数据库建立连接并可以正常工作的文件，但无法进行SELECT * FROM PRUEBA.DBO.AREAS
index.php 的index.php
<html>
<body>
<div class="container mt-2 mb-4 p-2 shadow bg-white">
<form action="crudQuery.php" method="POST">
<div class="form-row justify-content-center">
<div class="col-auto">
<input type="text" required name="area" class="form-control" id="area" placeholder="Ingrese Area">
</div>
<div class="col-auto">
<button type="submit" name="save" class="btn btn-info">Agregar Area</button>
</div>
</div>
</form>
</div>
<?php //require_once("crudQuery.php");?>
<div class="container">
<?php if(isset($_SESSION['msg'])): ?>
<div class="<?= $_SESSION['alert'];?>">
<?= $_SESSION['msg']; ?>
</div>
<?php endif; ?>
<table class="table">
<thead>
<tr>
<th>ID</th>
<th>Area</th>
<th>Action</th>
</tr>
</thead>
<tbody>
<form action="crudQuery.php" method="POST">
<?php
#Show DB
$sQuery = "SELECT * FROM prueba.dbo.AREAS";
$sResult = sqlsrv_query($conn,$sQuery) or sqlsrv_errors();
?>
</form>
</tbody>
</table>
</div>
</body>
</html>
To be precise, the commented line is the one that fails. 确切地说，注释行是失败的行。
crudQuery.php crudQuery.php
<?php
////////////////// CONEXION TO DB //////////////////
$serverName = 'SNMXLAP187\SQLEXPRESS';
$connectionInfo = array( "Database"=>"prueba");
$conn = sqlsrv_connect( $serverName, $connectionInfo);
if(isset($_POST['save'])){
if(!empty($_POST['area'])){
$area = $_POST['area'];
$iQuery = "INSERT INTO prueba.dbo.AREAS(AREA)
values('$area')";
echo $iQuery;
$sqlRes=sqlsrv_query($conn,$iQuery);
if(sqlsrv_execute($sqlRes)){
$_SESSION['msg'] = "Nueva Area Agregada";
$_SESSION['alert'] = "alert alert-success";
}
}
}
else{
#alert msg
$_SESSION['msg'] = "No se pudo agregar el Area";
$_SESSION['alert'] = "alert alert-warning";
}
header("location: index.php");
?> ？>
3 个解决方案
解决方案1
1 已采纳 2019-07-25 20:51:52
It looks like crudQuery.php is unconditionally included in index.php and unconditionally redirects to index.php . 看起来crudQuery.php无条件地包含在index.php并且无条件地重定向到index.php 。 So there's an infinite redirect. 因此，存在无限重定向。
It seems that you access the database even when you are not using crudQuery.php . 似乎即使不使用crudQuery.php ，也可以访问数据库。 So I suggest putting the database connection in a separate file that's included in both index.php and crudQuery.php . 因此，我建议将数据库连接放在一个单独的文件中，该文件包含在index.php和crudQuery.php 。 That way, you don't need to require crudQuery.php from index.php in order to make a database connection. 这样，您无需从index.php要求crudQuery.php即可建立数据库连接。
db.php db.php中
// connect to database
$serverName = 'SNMXLAP187\SQLEXPRESS';
$connectionInfo = array( "Database"=>"prueba");
$conn = sqlsrv_connect( $serverName, $connectionInfo);
index.php 的index.php
// connect to database
require_once 'db.php';
// fetch stuff from database
...
// display form
?>
<form action="crudQuery.php" method="POST">
...
</form>
crudQuery.php crudQuery.php
// connect to database
require_once 'db.php';
if(!empty($_POST['save'])){
// get posted value
// insert into database
// set session values
...
}
// redirect
header("location: index.php");
Alternatively, you can potentially do everything from one file: 另外，您可能可以从一个文件执行所有操作：
index.php 的index.php
// connect to database
$serverName = 'SNMXLAP187\SQLEXPRESS';
$connectionInfo = array( "Database"=>"prueba");
$conn = sqlsrv_connect( $serverName, $connectionInfo);
// process submission
if(!empty($_POST['save'])){
// get posted value
// insert into database
// set session values
...
// redirect
header("location: index.php");
}
// define msg and alert
$msg = !empty($_SESSION['msg'])
? $_SESSION['msg']
: "No se pudo agregar el Area";
$alert = !empty($SESSION['alert'])
$_SESSION['alert']
: "alert alert-warning";
// fetch stuff from database
...
// display form
?>
<form action="" method="POST">
...
</form>
解决方案2
1 2019-07-26 02:18:33
I'm sorry this is my first answer and I believe this isn't the best answer you'd like to use but please let me try up this... 抱歉，这是我的第一个答案，我相信这不是您要使用的最佳答案，但请让我尝试一下...
Try to change following code located on crudQuery.php 尝试更改位于crudQuery.php上的以下代码
header("location: index.php");
to a complete url of your folder where the index.php file were exist. 到存在index.php文件的文件夹的完整URL。 Perhaps like following code (or anything else, as your location of index.php): 可能像下面的代码（或其他任何内容，如index.php的位置）：
header("location: //localhost/index.php");
I hope it will work for you. 希望它对您有用。
解决方案3
0 2019-07-25 20:41:35
The problem is in declaration of header("location: index.php"); 问题出在header("location: index.php");声明中header("location: index.php"); . 。 You have to move it in if statement where you check if there is a post request. 您必须将其移入if语句中，以检查是否有post请求。
if(isset($_POST['save'])){
if(!empty($_POST['area'])){
$area = $_POST['area'];
$iQuery = "INSERT INTO prueba.dbo.AREAS(AREA)
values('$area')";
echo $iQuery;
$sqlRes=sqlsrv_query($conn,$iQuery);
if(sqlsrv_execute($sqlRes)){
$_SESSION['msg'] = "Nueva Area Agregada";
$_SESSION['alert'] = "alert alert-success";
header("location: index.php");
}
}
}
else{
#alert msg
$_SESSION['msg'] = "No se pudo agregar el Area";
$_SESSION['alert'] = "alert alert-warning";
}
Because you have to redirect ONLY when it was POST request 因为您只有在POST请求时才必须重定向
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