Write a PHP script to remove new lines (characters) from a string

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Write a PHP script to remove new lines (characters) from a string.

Sample strings : "Twinkle, twinkle, little star,\nHow I wonder what you are.\nUp above the world so high,\nLike a diamond in the sky.";

الأجوبة

<?php
$str = "Twinkle, twinkle, little star,\nHow I wonder what you are.\nUp above the world so high,\nLike a diamond in the sky.";
echo preg_replace('/\s+/', ' ', trim($str))."\n";
?>

Sample Output:

Twinkle, twinkle, little star, How I wonder what you are. Up
 above the world so high, Like a diamond in the sky.
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