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<!DOCTYPE html> <html> <body> <?php echo(fmod(20, 4) . "<br>"); echo(fmod(20, 3) . "<br>"); echo(fmod(15, 6) . "<br>"); echo(fmod(-10, 3) . "<br>"); echo(fmod(0, 0)); ?> </body> </html>
0
2
3
-1
NAN