Constant amount of php

The constant of php is the value that will not be changed as defined in the php script. The define () function is used to define constants. Once a constant is defined, it cannot be changed. the constant can only be accessed through the constant name, and there is no symbol before the constant name $? & Lt ;? Phpdefine ("PI", 3.1415926); printPI ;? & Gt ;? Php constants

A constant is a value defined in the php script that will not be changed. The define () function is used to define constants. Once a constant is defined, it cannot be changed. it can only be accessed through the constant name without a symbol before the constant name $

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