Object of class stdClass could not be converted to string ERROR - php

Question

I am trying to pass a value from my database to an input, but I throw the following error.I'm not sure if for this case you should use return $ this-> db-> get () -> row (); in the model. Any help is welcome.
A PHP Error was encountered
Severity: 4096
Message: Object of class stdClass could not be converted to string
Filename: usuarios/vConsulta_Horarios.php
Line Number: 590
Backtrace:
File: C:\xampp\htdocs\SAE\application\views\usuarios\vConsulta_Horarios.php
Line: 590
Function: _error_handler
File: C:\xampp\htdocs\SAE\application\controllers\cCalendar.php
Line: 26
Function: view
File: C:\xampp\htdocs\SAE\index.php
Line: 315
Function: require_once
Model (mCalendar)
public function lunes(){
$this->db->select('MIN(horario.hrs_ini)');
$this->db->from('horario');
$this->db->join('usuarios','horario.rut_usu = usuarios.rut_usu');
$this->db->where('usuarios.rut_usu','17811942-4');
$this->db->where('horario.lunes','ATTE. ESTUDIANTES');
return $this->db->get()->row();
Controller (cCalendar)
public function index(){
$this->load->view('layouts/header.php');
$this->load->view('layouts/menu.php');
$this->load->model('mCalendar');
$data['start_lunes'] = $this->mCalendar->lunes();
$this->load->view('usuarios/vConsulta_Horarios.php',$data);
$this->load->view('layouts/footer.php');
}
View
<div class="col-md-2">
<div class="form-group">
<label>fecha</label>
<input tupr="text" id="fecha_actual" name="fecha_actual" value="<?php echo $start_lunes;?>">
</div>
</div>

Answer 1

Even though you are only selecting one column, you still need to specify it when you output, because $start_lunes is the object that represents the entire row, and as the error tells you, it can't be converted to a string.
I think echo $start_lunes->hrs_ini should work.
Based on your updated function, I think it would be easier if you aliased the MIN expression in your select
$this->db->select('MIN(horario.hrs_ini) AS min_hrs');
Then refer to that in your view: echo $start_lunes->min_hrs

Answer 2

As return $this->db->get()->row(); returns object you are getting this error
You need to refer this link
So now, I will suggest you one thing to return data properly.
In your Controller change return $this->db->get()->row();
to
return $this->db->get()->result_array();
Now you are getting data in the format of Array and you can echo this in your View using
// In your view
foreach($start_lunes as $var){
$value = $var['MIN(horario.hrs_ini)'];
}
<input type="text" id="fecha_actual" name="fecha_actual" value="<?php echo $value?>"