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<!DOCTYPE html> <html> <body> <?php declare(strict_types=1); function sum(int $a, int $b) { return $a + $b; } // Throws a fatal error because '5' is a string instead of a number sum("5", 1); ?> </body> </html>
PHP Fatal error: strict_types declaration must be the very first statement in the script in /home/h0iQ5o/prog.php on line 6
