Will php code exit after echo for ajax?

Question

I am running a typical php-engined ajax webpage. I use echo to return a html string from the php code. My question is, if I have some other code after the echo, will those code get executed? Or echo behaves similar to exit, which immediately return and stop running the php code? Thanks.

Answer 1

No, echo in no way exits, you normally have more than one echo in a script. exit does take a string argument that it will output before exiting, however, so you can do:

exit("your string here");

and it will output the string and exit

Answer 2

No, echo would not. To exit after echoing things, you'd say

echo "Dear me, good bye!"; exit();

Answer 3

echo will simply return text to ajax javascript part; however the code after or before echo/echos will execute

Answer 4

No. PHP scripts are rendered in their entirety unless you explicitly exit them. ANY output on a script will be passed back to the ajax function if it was called through ajax.

echo 'This gets outputted<br />';
echo 'As does this';

Answer 5

If you must use a single file and you want your script to exit after performing ajax request with out having to add extra vars to your ajax url or evaluate vars to exit, i would suggest creating a function that performs your ajax, have the function return true on success, then do:

if(ajaxFunction($paramOne, $paramTwo)){exit();}