Syntax Error in common.php

Hi there, wordpress is failing to install the plugin because of a syntax error on line 1970 of common.php

The fatal error is as follows:
Parse error: syntax error, unexpected ‘[‘ in /home/rizecon/public_html/wp-content/plugins/wp-cerber/common.php on line 1970

// @since v. 7.7 for PHP-FPM
if ( ! function_exists( ‘getallheaders’ ) ) {
function getallheaders() {
$headers = [];
foreach ( $_SERVER as $name => $value ) {
if ( substr( $name, 0, 5 ) == ‘HTTP_’ ) {
$headers[ str_replace( ‘ ‘, ‘-‘, ucwords( strtolower( str_replace( ‘_’, ‘ ‘, substr( $name, 5 ) ) ) ) ) ] = $value;
}
}

return $headers;
}
}