Query

Query is a generic term in PHP. It refers to a command, written in a specific format, and that is processed by a separate engine.

Hence, query has several usages:

• SQL query, when sending command to a SQL server. This is possibly the most common usage.

• The query string, a part of the URL

• HTTP query, when processing or submitting command via HTTP

• LDAP query, when communicating with a LDAP server.

Related : Structured Query Language (SQL), Lightweight Directory Access Protocol (LDAP), Hyper Text Transfer Protocol (HTTP), Query String, Client, parse_str(), Response, Server