Importar ficheiros gigantes de SQL

index.php

$lines = file('agrupama.sql'); //lê o ficheiro para dentro de um array
foreach ($lines as $line) {
        // Skip it if it's a comment
        if (substr($line, 0, 2) == '--' || $line == '')
                continue;
        // Add this line to the current segment
        $templine .= $line;
        // If it has a semicolon at the end, it's the end of the query
        if (substr(trim($line), -1, 1) == ';')  {                           
                // Perform the query
                SQL::run($templine);
                // Reset temp variable to empty
                $templine = '';
        }
}
$lines = [];