What are some potential pitfalls of using $_GLOBALS in PHP?

Using $_GLOBALS in PHP can lead to security vulnerabilities, as it allows access to global variables from anywhere in the code, making it difficult to track and secure sensitive data. To avoid this, it is recommended to use more specific variable scopes, such as local variables or session variables, to prevent unauthorized access to data. 

// Instead of using $_GLOBALS, use local variables or session variables
$myVariable = "This is a local variable";
$_SESSION['mySessionVariable'] = "This is a session variable";

Keywords

$_GLOBALS global variables security vulnerabilities variable scope namespace pollution

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