What is causing the "Parse error: parse error, unexpected T_CONST" in the given PHP code?

The "Parse error: parse error, unexpected T_CONST" is caused by using the const keyword outside of a class definition in PHP. To solve this issue, you need to define constants within a class using the const keyword or outside of a class using the define() function. 

// Incorrect usage of const outside of a class
const MY_CONSTANT = "Hello World";

// Correct usage of define() function to define a constant
define('MY_CONSTANT', 'Hello World');

Keywords

Parse error T_CONST PHP code unexpected error

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