How can the error "unexpected '$_REQUEST' (T_VARIABLE)" be resolved in PHP?

The error "unexpected '$_REQUEST' (T_VARIABLE)" occurs when the $_REQUEST superglobal variable is not used correctly in PHP. To resolve this error, ensure that the $_REQUEST variable is used within the appropriate context, such as within a function or method. 

// Incorrect usage of $_REQUEST causing error
$value = $_REQUEST['key'];

// Correct usage of $_REQUEST within a function
function get_request_value($key) {
    return $_REQUEST[$key];
}

// Example of calling the function with the correct usage
$value = get_request_value('key');

Keywords

PHP $_REQUEST T_VARIABLE syntax error troubleshooting

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