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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Swap Arguments Inside Format String with vprintf()</title> </head> <body> <?php // Sample array $array = array("50", "United States"); // Defining the format string $format = "The %2\$s is a federal republic of %1\$d states."; // Formatting and print the string vprintf($format, $array); ?> </body> </html>
