How to get a url parameter
Question
I'm having problems getting a URL parameter.
The error is the following:
Notice: Undefined index: link in C:\\xampp\\htdocs+Gesol\\modulos\\login\\form.php on line 3
This is how the URL looks: http://localhost:82/+Gesol/login/form/ingreso?link=/+Gesol/outdoors-servicios/form/8780
session code:
if ($gl_to == "ver"): //VERIFICA QUE EXISTA SESSION
if (!isset($_SESSION['id']) or !isset($_SESSION['empresa']) or !isset($_SESSION['user']) or !isset($_SESSION['nombre']) or !isset($_SESSION['email']) or !isset($_SESSION['gesol'])):
if (isset($Gl_config_cms_url)){
$link = $_SERVER['REQUEST_URI'];
header("Location: ".$Gl_config_cms_url."login/form/ingreso?link=$link");
exit();
}else{
header("Location: ./login/form/ingreso");
exit();
}
endif;
endif;
Login form code:
<?php
$link = $_GET['link'];
echo $link;
exit;
session_start();
require_once ("../../../global/-gl-abre-conexion-gesol.php");
require_once ("../../global/gl-funciones.php");
$Gl_accion="INQ"; require_once("../../modulos/configuracion/XML-config.php");
#--- Revisa si esta entrando desde https solo si el sitio tiene https activo en la url
if(substr($Gl_config_cms_url,0,5)=="https"):
if (!isset($_SERVER['HTTPS'])):
header("Location: ".$Gl_config_cms_url."login/form/ingreso");
endif;
endif;
#--- Valida Usuarios
$Gd_error = "";
if (!empty($_POST))
{
if (isset($_POST['user']) and isset($_POST['pass']))
{
require("SQL-login.php");
if ($Gl_existe_user=="N")
{
$Gd_error = "Nombre de usuario y/o contraseña no válido. <br/> ¿<a href='./login/lost/password'>Has olvidado tu contraseña</a>? ";
}else{
$Gl_usuario = $Gd_user_id;
require("../../modulos/usuarios/SQL-tb_gesol_acceso.php");
if ($Gl_existe_miplusAcceso=="S")#---Valida si el usuario tiene acceso a pantallas
{
$gl_to = "crear";
require("../../global/gl-session.php");
header("Location: ".$Gl_config_cms_url."panel/home/");
exit();
}else{
$Gd_error = "Usuario sin privilegios para ingresar al CMS, favor contacte a su proveedor.";
}
}
}else{
$Gd_error = "Ingrese Usuario y contraseña para ingresar al sistema.";
}
}else{
$gl_to = "revisa";
require_once("../../global/gl-session.php");
}
#--- Maneja fondos segun hora del día
$Gd_hora = date("H"); $Gd_fondo = "dia";
if ($Gd_hora>=6)
$Gd_fondo = "dia";
if ($Gd_hora>=13)
$Gd_fondo = "tarde";
if ($Gd_hora>=20 or ($Gd_hora>=1 and $Gd_hora<=5))
$Gd_fondo = "noche";
#---
?>
<!DOCTYPE html>
<html lang="es" class="lockscreen lockscreen-<?=$Gd_fondo?>">
<head>
<meta charset="UTF-8">
<title>GESOL | CRM</title>
<meta content='width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no' name='viewport'>
<meta name="description" content="Sistema de Gestión de Solicitudes GESOL">
<meta name="author" content="Tecnología Aplicada y Comunicaciones TAYCO.cl">
<meta name="Generator" content="GESOL" />
<meta name="robots" content="noindex">
<meta name="googlebot" content="noindex">
<link href="<?=$Gl_config_cms_url?>css/bootstrap.min.css" rel="stylesheet" type="text/css" />
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css" rel="stylesheet" type="text/css" />
<link href="<?=$Gl_config_cms_url?>css/Gesol.css" rel="stylesheet" type="text/css" />
<link href="<?=$Gl_config_cms_url?>css/images/favicon.ico" rel="shortcut icon">
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
<script src="https://oss.maxcdn.com/libs/respond.js/1.3.0/respond.min.js"></script>
<![endif]-->
</head>
<body>
<div class="form-box" id="login-box">
<div class="header"><img src="<?=$Gl_config_cms_url?>css/images/logo-gesol-login.png"></div>
<form action="./ingreso" method="post">
<div class="body bg-gray">
<div class="form-group">
<input type="text" name="user" class="form-control" placeholder="Usuario" required="" />
</div>
<div class="form-group">
<input type="password" name="pass" class="form-control" placeholder="Contraseña" required=""/>
</div>
<!--
<div class="form-group">
<input type="checkbox" name="remember_me"/> Recordar
</div>
-->
</div>
<div class="footer">
<button type="submit" class="btn bg-light-blue btn-block">Ingresar</button>
<p class="text-center"><a href="<?=$Gl_config_cms_url?>login/lost/password">Olvide mi Contraseña</a></p>
</div>
</form>
<?php if ($Gd_error!=""):?>
<br/>
<div class="callout callout-danger">
<h4>MIPLUS ERROR</h4>
<p><?=$Gd_error?></p>
</div>
<?php endif;?>
<div class="margin text-center copyright">
<span>MADE WITH <i class="fa fa-heart"></i> IN CHILE BY <b>TAYCO.cl</b></span>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.2/jquery.min.js"></script>
<script src="<?=$Gl_config_cms_url?>js/bootstrap.min.js" type="text/javascript"></script>
<?php if ($Gd_error!=""):?>
<script src="https://code.jquery.com/ui/1.11.2/jquery-ui.js"></script>
<script type="text/javascript">
$(function() {
$(".form-box").effect("shake");
});
</script>
<?php endif;?>
</body>
</html>
<?php
require_once ("../../../global/-gl-cierra-conexion-gesol.php"); ?>
As you can see, i'm trying to get the "?link=$link" who contains a url that i need. ( /+Gesol/outdoors-servicios/form/8780 )
3 answers
solution1
1 ACCPTED 2019-09-12 07:40:03
Quick answer:
<form action="./ingreso" method="post">
you cannot get link by $_GET you may get it like $_POST['link'] (if you set it inside the form by a <input> object.
Alternate answer
if you want to really get it with $_GET variable then you should write it like:
<form action="./ingreso?link=http://whatyouwanttowrite..." method="post">
You did not send a POST variable link from the form. you may set it manually like
<input type="hidden" name="link" value="https://www.google.com">
then you may get it with $_POST
Alternate solution use $_REQUEST which combines $_GET and $_POST variables.
$link = $_REQUEST['link'];
Supressing error: you may put a @ to supress the error. like $link = @$_GET['link'];
solution2
0 2019-09-11 18:32:10
Your login form is shown first? If so, $_GET['link'] on line 3 of form isn't available. Surround it in an isset condition
solution3
0 2019-09-11 19:23:38
Because it does not find your $_GET['link'] but you can not see this message after your form request. Below code helps you. As Shane said.
if(isset($_GET['link']))
{
something here...
}
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