PHP Developer Question:
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Which special characters need to escape in Single-Quoted Stings?

Answer:

There are two special characters you need to escape in a single-quote string: the single quote (') and the back slash (). Here is a PHP script example of single-quoted strings:

<?php
echo 'Hello world!';
echo 'It's Friday!';
echo ' represents an operator.';
?>
This script will print:
Hello world!It's Friday! represents an operator.

Answer #2
echo 'hi how are you';
echo ' it\'s free of cost';
echo 'end of the program';
?>
This script will print

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