1. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 2. "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 3. <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> 4. <head> 5. <meta http-equiv="content-type" content="text/html; charset=utf-8" /> 6. <title>Quotes</title> 7. </head> 8. <body> 9. <?php // Script 2.4 - quotes.php 10. 11. // Single or double quotation marks won't matter here: 12. $first_name = 'Larry'; 13. $last_name = "Ullman"; 14. 15. // Single or double quotation marks DOES matter here: 16. $name1 = '$first_name $last_name'; 17. $name2 = "$first_name $last_name"; 18. 19. // Single or double quotation marks DOES matter here: 20. print "<h1>Double Quotes</h1><p>name1 is $name1 <br /> 21. name2 is $name2</p>"; 22. 23. print '<h1>Single Quotes</h1><p>name1 is $name1 <br /> 24. name2 is $name2</p>'; 25. 26. ?> 27. </body> 28. </html> 29.