Trying to Get Property of Non-object In

Trying to get property of non-object in

Check the manual for mysql_fetch_object(). It returns an object, not an array of objects.

I'm guessing you want something like this

$results = mysql_query("SELECT * FROM sidemenu WHERE `menu_id`='".$menu."' ORDER BY `id` ASC LIMIT 1", $con);

$sidemenus = array();
while ($sidemenu = mysql_fetch_object($results)) {
    $sidemenus[] = $sidemenu;
}

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Might I suggest you have a look at PDO. PDOStatement::fetchAll(PDO::FETCH_OBJ) does what you assumed mysql_fetch_object() to do

Trying to get property 'id' of non-object only in my website

First of all, clear the caches with $promotion->id as using the below command.

php artisan config:cache
php artisan view:clear
php artisan route:clear

If you still get the error then use $promotion->userId as I have seen in your error the object contains userId, not an id.

Laravel 5.8: Trying to get property 'prd_name' of non-object

From your information it looks like $arg['details'] is not coming empty and when fetching relation product in loop, one of the value of $detail is coming as null.

Try debugging for each order, what is the value of $arg['details'].

Trying to get property 'description' of non-object Laravel 6

Try this

public function show($todoId){
        $todos = Todo::where('id', $todoId)->get();
        return view('todos.show', compact('todos'));
    }

Fix error trying to get property of non-object Laravel

You're getting multiple records if you use get() method.

using first() you'll get only one collection.

Remove get(), and use only first() method

$name = '';
$sub = DB::table('hours')->join('projects', function($join) use ($projectID,$id){
                                $join->on('hours.project_id', '=', 'projects.id')
                                ->where('hours.project_id', '=', $projectID)
                                ->where('hours.id', '=', $id);
                            })->select('nameP')->first();
if(!empty($sub)){
    $name=$sub->nameP;
}

PHP error code: Trying to get property of non-object

So that means $wp_query->post is not an object. I havn't used worpress much but It looks like one of the posts must be returning an empty object.

Try this in order to skip over any empty post:

<?php //Display Page Header
    global $wp_query;
    if(!empty($wp_query->post)){
        $postid = $wp_query->post->ID;
        echo page_header( get_post_meta($postid, 'qns_page_header_image', true) );
    }
    wp_reset_query();
?>

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