How to express not equal in php

There are three ways to express inequality in php, namely: 1. "x != y" mode, which means if x is not equal to y, return true; 2. "x y" mode , which means that when x is not equal to y, it returns true; 3. "x !== y" method means that it is absolutely not equal.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

How to express not equal in php?

• x != y Not equal to If x is not equal to y, return true 5!=8 Return true

• x y Not equal If x is not equal to y, return true 58 Return true

• ##x !== y Definitely not equal If x is not equal to y, or they are not the same type , then return true 5!=="5" Return true

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