Comments on: Building your first Ajax application with PHP http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/ My personal site and blog Thu, 04 Dec 2008 02:16:14 +0000 http://wordpress.org/?v=2.6.5 By: 50 Excellent AJAX Tutorials | Evolution : weblog http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130591 50 Excellent AJAX Tutorials | Evolution : weblog Fri, 31 Oct 2008 04:22:14 +0000 http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130591 [...] Building Your First AJAX Application with PHP An introductory post for getting started with AJAX. [...] [...] Building Your First AJAX Application with PHP An introductory post for getting started with AJAX. [...]

]]> By: Mario http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130468 Mario Tue, 21 Oct 2008 18:04:17 +0000 http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130468 Excellent tutorial for starters, thanks! Mario Excellent tutorial for starters, thanks!

Mario

]]> By: 50+ Great Ajax Tutorial | Tech User, Blogger and Designers References http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130462 50+ Great Ajax Tutorial | Tech User, Blogger and Designers References Tue, 21 Oct 2008 11:33:53 +0000 http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130462 [...] Building Your First AJAX Application with PHP An introductory post for getting started with AJAX. [...] [...] Building Your First AJAX Application with PHP An introductory post for getting started with AJAX. [...]

]]> By: Peter http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130433 Peter Sat, 18 Oct 2008 22:18:41 +0000 http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130433 @Chris From what I remember, it is certainly possible to put doAjaxQuery() inside the action of the form, provided you prefix it with javascript: Something like this: <code>action="javascript:doAjaxQuery(...etc...)"</code> However, it seemed to me at the time to be 'cleaner' to put JavaScript code into the onsubmit event handler, as that's what event handlers are designed for (and you don't need the javascript: prefix there). The blank javascript:; in the action therefore is simply to prevent the browser from going anywhere when the form is submitted, but to ensure that the onsubmit event code is still executed. @Chris

From what I remember, it is certainly possible to put doAjaxQuery() inside the action of the form, provided you prefix it with javascript:

Something like this:

action="javascript:doAjaxQuery(...etc...)"

However, it seemed to me at the time to be ‘cleaner’ to put JavaScript code into the onsubmit event handler, as that’s what event handlers are designed for (and you don’t need the javascript: prefix there).

The blank javascript:; in the action therefore is simply to prevent the browser from going anywhere when the form is submitted, but to ensure that the onsubmit event code is still executed.

]]> By: Chris http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130432 Chris Sat, 18 Oct 2008 18:01:36 +0000 http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130432 Really good simple tutorial, and well explained, so just a small question! Could you just explain why the form submit parameter is action="javascript:" and the ajax is called by the onsubmit event? I was thinking the onsbmit parameter could be the form action, but I tried and it doesn't work, i just don't understand quite why! Thanks Really good simple tutorial, and well explained, so just a small question!

Could you just explain why the form submit parameter is action=”javascript:” and the ajax is called by the onsubmit event?
I was thinking the onsbmit parameter could be the form action, but I tried and it doesn’t work, i just don’t understand quite why!
Thanks

]]> By: 50 Excellent AJAX Tutorials | Web Burning Blog http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130430 50 Excellent AJAX Tutorials | Web Burning Blog Sat, 18 Oct 2008 08:05:08 +0000 http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130430 [...] Building Your First AJAX Application with PHP An introductory post for getting started with AJAX. [...] [...] Building Your First AJAX Application with PHP An introductory post for getting started with AJAX. [...]

]]> By: 50 Excellent AJAX Tutorials | POLPDESIGN http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130429 50 Excellent AJAX Tutorials | POLPDESIGN Sat, 18 Oct 2008 07:12:38 +0000 http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130429 [...] Building Your First AJAX Application with PHP An introductory post for getting started with AJAX. [...] [...] Building Your First AJAX Application with PHP An introductory post for getting started with AJAX. [...]

]]> By: kaizened http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130427 kaizened Fri, 17 Oct 2008 23:10:20 +0000 http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130427 Many thanks for giving me a first experience with AJAX. I think the way you make tutorials is the best there is for starters like me. I noticed one error: if (ajaxObject.responseText == '1') { should become if (ajaxObject.responseText == 1) { because in my browser the number was recognized and not the string Many thanks for giving me a first experience with AJAX. I think the way you make tutorials is the best there is for starters like me.
I noticed one error:
if (ajaxObject.responseText == ‘1′) {
should become
if (ajaxObject.responseText == 1) {
because in my browser the number was recognized and not the string

]]> By: badpenguin http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130426 badpenguin Fri, 17 Oct 2008 19:43:17 +0000 http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130426 I can see absolutely no purpose for the session_start() in your ajax.php, other than to waste resources. I can see absolutely no purpose for the session_start() in your ajax.php, other than to waste resources.

]]> By: Alan Gilmore http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130423 Alan Gilmore Fri, 17 Oct 2008 13:08:09 +0000 http://peter.upfold.org.uk/blog/2006/09/27/building-your-first-ajax-application-with-php/#comment-130423 Thanks for this series of tutorials. I am a programmer of 13 years trying to add ajax and php to my skills. The problem is that all the books and tutorials I have seen treat javascript like neat trick provider instead of an OOP language like I'm used to. Keep up the good work, I'll be back. Alan Thanks for this series of tutorials. I am a programmer of 13 years trying to add ajax and php to my skills. The problem is that all the books and tutorials I have seen treat javascript like neat trick provider instead of an OOP language like I’m used to. Keep up the good work, I’ll be back.

Alan

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