Warning: Illegal string offset 'todo' | PHP - php

Question

Am trying to do a to-do list using PHP
but am getting this error Warning: Illegal string offset 'todo'
$userhastodo = "";
$toDo_Query = "SELECT * FROM `todo` WHERE `for`='".$_SESSION['id']."'";
$toDo_run_query = mysqli_query($link , $toDo_Query);
$toDo_num_rows = mysqli_num_rows($toDo_run_query);
if($toDo_num_rows >= 1){
$toDo_get_info = mysqli_fetch_array($toDo_run_query);
$toDo_info = $toDo_get_info;
foreach($toDo_info as $info){
echo $info['todo'];
}
}
else{
$userhastodo = "You have no lists here :( !";
}
that is in the top of my todo.php page
in the html part
<?php if(empty($toDo_get_info)):?>
<div class="empty">
<i class="fa fa-meh-o fa-5x"></i>
<h3>Strange, no lists found!</h3>
</div>
<?php else: ?>
<ul class="list">
<?php foreach($toDo_info as $info_in_toDo):?>
<li><span><?php echo $info_in_toDo['todo']?></span></li>
<?php endforeach;?>
</ul>
<?php endif;?>
how can i fix this ? it keeps warning me => Warning: Illegal string offset 'todo'
todo exists in my mysql database holding the data of a to-do activity

Answer 1

If you look at this section:
$toDo_get_info = mysqli_fetch_array($toDo_run_query);
$toDo_info = $toDo_get_info;
foreach($toDo_info as $info){
echo $info['todo'];
}
You see that you get one row from your result set, so $toDo_info is a one-dimensional array containing one complete row.
You loop over that row with your foreach so you will get all values from that row and these are strings, not arrays.
You only need:
echo $toDo_get_info['todo'];
Edit: To get all rows and echo all items, you need to fetch all rows:
while ($toDo_get_info = mysqli_fetch_array($toDo_run_query))
{
// add your html to add list items here as well
echo $toDo_get_info['todo'];
}

Answer 2

Try changing to this
foreach($toDo_info as $key => $info){
echo $info;
}
Better yet see #jeroen's answer...