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run code in 300+ PHP versions simultaneously
<?php class header { const JQUERY = "<script src=\"//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js\"></script>"; public static function default() { return implode("\n", array(self::JQUERY)); } public static function module($main) { return sprintf("<script data-main=\"%s\" src=\"scripts/require.js\"></script>", $main); } }

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