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Basic AJAX with jQuery and PHP

Basic AJAX with jQuery and PHP. Chris Renner Informatics Manager & Web Developer VUMC Office of Grants & Contracts Management. Agenda. What is AJAX? What is jQuery ? Demonstration/Tutorial Resources Q&A. What is AJAX?. A synchronous J avaScript A nd X ML

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Basic AJAX with jQuery and PHP

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  1. Basic AJAX with jQuery and PHP Chris Renner Informatics Manager & Web Developer VUMC Office of Grants & Contracts Management

  2. Agenda • What is AJAX? • What is jQuery? • Demonstration/Tutorial • Resources • Q&A

  3. What is AJAX? • Asynchronous JavaScript And XML • A bundle of technologies used together to enhance user experience by altering displayed information on a web page without a page refresh. • Employs HTML, CSS and JavaScript on client (browser) side, plus any one of a number of server-side technologies. PHP is the most popular server-side technology in AJAX implementations.

  4. AJAX visual model

  5. What is jQuery? • A “JavaScript Library” that simplifies HTML and document traversing, event handling, animating, and AJAX interactions. • A short hand for writing JavaScript with fewer lines of code do to the same things. • “Write less, do more”

  6. jQuery Syntax Examples Standard js: varfoo = document.getElementById(‘bar’).value; jQuery: varfoo = $(‘#bar’).val();

  7. XMLHTTP Request with jQuery $.ajax({ type: "POST", url: "some.php", data: "name=John&location=Nashville", success: function(msg){ alert( "Data Saved: " + msg ); } });

  8. Tutorial/Demo • Simple “tweeting” app

  9. Demo Q&A • Any questions?

  10. Resources • Beginning Ajax with PHP, Lee Babin, Apress, Amazon id: 1590596676 • http://www.jQuery.com • W3chools AJAX tutorial: http://www.w3schools.com/Ajax/Default.Asp

  11. Find Me Phone: 2-7404 Email: chris.renner@vanderbilt.edu Dept Website: http://www.mc.vanderbilt.edu/gcm Web Development Blog: http://www.chrisrenner.com

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