What does the double vertical bar in php mean?

php Double vertical bars represent the "or" in the PHP logical operator. The expression of the "or" operator is "x || y", which means that if at least one of the two variable values ​​​​x and y is true, returns true.

#The operating environment of this article: Windows7 system, PHP7.1, Dell G3.

phpWhat does the double vertical bar mean?

phpThe double vertical bar represents the "or" in the PHP logical operator.

x || y

or

If at least one of x and y is true, then return true

x=6
y=3
(x==5 || y==5) 返回 false

More logical operators are as follows:

Recommended study: "PHP Video Tutorial"

The above is the detailed content of What does the double vertical bar in php mean?. For more information, please follow other related articles on the PHP Chinese website!