How to output JavaScript with PHP

Question

I am new to PHP. I need to output the following JavaScript with PHP. This is my code:

Answer 1

You should escape the JavaScript string delimiters inside the PHP string. You're using double quotes for both PHP and JavaScript strings. Try like this instead:

';
echo 'document.write("Hello World!")';
echo '';

?>

You have to escape quotes on both JavaScript and PHP when the string delimiter are the same as the quotes:

echo "\""; // escape is done using a backslash
echo '\'';

Same in JavaScript:

alert("\""); // escape is done using a backslash
alert(echo '\'');

But because it's very hard to read a string with such escape sequences, it is better to combine single with double quotes, as needed:

echo '"';
echo "'";