How to output JavaScript with PHP

php

Solution

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:

<html>
<body>
<?php

// Here, we use single quotes for PHP and double quotes for JavaScript
echo '<script type="text/javascript">';
echo 'document.write("Hello World!")';
echo '</script>';

?>
</body>
</html>

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 "'";

Problem

I am new to PHP. I need to output the following JavaScript with PHP. This is my code: ``` <html> <body> <?php echo "<script type="text/javascript">"; echo "document.write("Hello World!")"; echo "</script>"; ?> </body> </html> ``` But it's showing the error: Parse error: syntax error, unexpected T_STRING, expecting ',' or ';' in /var/www/html/workbench/person/script.php on line 4 Can anyone please help? I also need some simple tutorials on how to use PHP, HTML and JavaScript for an application.

Original source