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AJAX - PHP validation [message #39114] Sun, 30 September 2007 02:38 Go to next message
esm2002 is currently offline  esm2002   United States
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I have a page where I use AJAX to call a PHP file which validates a couple of fields in a form. I use onblur to call a JS function which is a AJAX call a PHP file which checks the field for validity.

I have read a little about using JS to validate client-side (folks say this is a thing to do) and PHP to validate server-side (folks say this is a must).

So where does AJAX fit into the validation of form data...???

I have read where JS is useless if the surfer has it turned off. But you cannot really use my site if JS is turned off.



"The older I get, the more I admire competence, just simple competence in any field from adultery to zoology."
Re: AJAX - PHP validation [message #166525 is a reply to message #39114] Sat, 07 January 2012 00:30 Go to previous messageGo to next message
naudefj is currently offline  naudefj   South Africa
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AJAX can be used to validate data interactively as users type. You still need to re-validate everything when the form is posted, as AJAX is JS based and can be deactivated and bots can post data without executing the JS.

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