I am creating a login system and need to store passwords without keeping plaintext. *Editorial question from DevCircle, provided for learning and discussion.*

json_decode returns objects by default, but my code expects array keys. *Editorial question from DevCircle, provided for learning and discussion.*

I need to query a database using a value from an HTML form. *Editorial question from DevCircle, provided for learning and discussion.*

A variable contains zero or an empty string. Why do these checks return different results? *Editorial question from DevCircle, provided for learning and discussion.*

Loose comparisons produce unexpected matches in my PHP code. How does strict comparison help? *Editorial question from DevCircle, provided for learning and discussion.*