How can PHP developers prevent unauthorized changes to variables like $row[]?

Unauthorized changes to variables like $row[] can be prevented by using the "const" keyword to define constants for the variable values. By defining constants, the values cannot be changed or modified throughout the script. This ensures that the data remains secure and unchanged. 

<?php

define('ROW_VALUE', 'some_value');

echo ROW_VALUE;

// Output: some_value

// Trying to change the value will result in an error
ROW_VALUE = 'new_value';

?>

Keywords

variable protection variable security PHP constants access control data integrity

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