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Should I add AJAX logic to my PHP classes / scripts?

I was just starting to create a PHP / AJAX site, and I was wondering where I should add functionality, "including only content .

Should I have if statements in my header and footer scripts that check the "ContentOnly" get parameter ? And then add this parameter to the query strings in my AJAX calls?

Or should I use an AJAX-side filter to grab the main content of the Div. Like in jquery:

$(this).load("/myPhpPage.php #mainContentDiv")

Will the first method be faster? But the second method will retain AJAX functionality on the presentation side and outside of my PHP.

Or is there a third method? I want my PHP scripts to be intact, so if oyu goes directly to them, then there is a header and footer. Thanks in advance!

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5 answers

Please do not use AJAX to use AJAX.

However, most AJAX libraries send an HTTP header X-Requested-Withindicating that this is an AJAX request. You can use this header to decide whether to include its header / footer, etc.

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Source: https://habr.com/ru/post/1703377/

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