how to fetch results from select query with class - php

Question

I am trying to learn select query with class.
Below is index.php, which have a form to display results and I in PHP I am calling class operations, which is in operations.php
<?php
session_start();
include('operations.php');
$userprofileobj = new operations();
$userprofileobj->showuserprofile($_SESSION['user_email']);
$row = $userprofileobj->fetch_assoc();
?>
<form class="form-horizontal" method="post" action="#" name="number_validate" id="number_validate" >
<div class="control-group">
<label class="control-label">Admin Name</label>
<div class="controls">
<input type="text" name="min" id="min" value="<?php echo $row['user_name']; ?>" required />
</div>
</div>
<div class="control-group">
<label class="control-label">User Email</label>
<div class="controls">
<input type="text" name="max" id="max" value="<?php echo $row['user_email']; ?>" required />
</div>
<div class="form-actions">
<input type="submit" value="Update" class="btn btn-success">
</div>
</form>
operations.php is:
class operations{
public $user_email;
public $error;
public $con;
public function __construct()
{
$this->con = new mysqli("localhost","root","","admin_with_oops");
}
public function showuserprofile($user_email)
{
$result = $this->con->query("select * from user_table where user_email='$user_email'");
if($result->num_rows > 0)
{
return $result;
}
else
{
$this->error = "User not exist";
}
}
}
Am I on right way? If yes teh what is the problem on above code?
Error is: Fatal error: Call to undefined method operations::fetch_assoc() in F:\xampp\htdocs\admin_with_oops\HTML\index.php on line 16

Answer 1

$userprofileobj is an instance of the operations class. It doesn't have fetch_assoc() method. You should replace
$userprofileobj->showuserprofile($_SESSION['user_email']);
$row = $userprofileobj->fetch_assoc();
with
$row = $userprofileobj->showuserprofile($_SESSION['user_email'])->fetch_assoc();
Or you could assign the result to a variable and then call the fetch_assoc() function on it:
$result = $userprofileobj->showuserprofile($_SESSION['user_email']);
$row = $result->fetch_assoc();