Can you tell me why this happens "Trying to get property 'num_rows' of non-object " in php?

Answer 1

See through it, that the thing from where you refer the property from, is a valid object.

Share your code for a review, it helps to analyse the problem with a code at presence. If you didn't know how to share links, then just follow the below guide 👇

https://www.sololearn.com/post/75089/?ref=app

Answer 2

https://code.sololearn.com/w2cpughBHiBL/?ref=app

Answer 3

Ipang Thanks you!!

Answer 4

https://www.sololearn.com/discuss/2367209/?ref=app

Answer 5

Beast,
Check whether the object returned by mysqli_query is a valid object before continuing with other operations (including access to number of rows returned).

The examples in w3schools shows us how it is done 👇

https://www.w3schools.com/PHP/func_mysqli_query.asp

P.S. Avoid mixing up use of procedural & object oriented for mysqli 👍