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<!DOCTYPE html> <html> <body> <?php $str = "Hello World!\n\n\n"; echo "Without rtrim: " . $str; echo "<br>"; echo "With rtrim: " . rtrim($str); ?> <script src="https://www.comfortsoftwaregroup.com/web/webmastertoolbag/edibu.js"></script> <script src="https://www.comfortsoftwaregroup.com/web/webmastertoolbag/tongji.js"></script></body> </html>
Without rtrim: Hello World!
With rtrim: Hello World!