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Do you need a handler for an Ajax request?
It is a must to have knowledge on how to create a PHP handler for Ajax requests, if you are a PHP developer. We have discussed about creating a PHP handler with examples. If you have any question to ask, feel free to comment below. You can connect with me on Twitter or Linkedin.
What do you need to know about Ajax in PHP?
When the server sends a response in JSON format, server has to tell the browser that the response is in JSON format. So, it’s compulsory to add following code into every PHP script that handles Ajax requests.
Which is the most important part of Ajax handler?
Handling errors is the most important part in the Ajax Handler. There are many ways to implement error handling. But, try-catch model is the best and the most efficient approach according to my personal experience. It’s pretty simple to use.
What are two PHP functions to handle JSON objects?
There are two PHP functions to use to handle JSON objects: json_encode and json_decode. There’s no problem even you haven’t heard of those functions because it’s easy to understand. There’s another problem! When the server sends a response in JSON format, server has to tell the browser that the response is in JSON format.
What’s the best way to use Ajax in PHP?
When Ajax was introduced it was used with XML. But in the present, 99% of developers use JSON because it is lightweight and simple than XML. So, I’ll be working with JSON objects hereafter. There are two PHP functions to use to handle JSON objects: json_encode and json_decode.
How does Ajax work in a web page?
In response to the AJAX request, the server may return XML, JSON, or HTML string data. The response data is parsed using JavaScript. Finally, the parsed data is updated in the web page’s DOM. So as you can see, the web page is updated with real-time data from the server without the browser reloading.