Print on screen during shutdown hook – error during saving in theme-editor.php
I’m trying to use this sample php code added to my funcion.php file:
function echo_shutdown(){
echo 'test';
}
add_action( 'shutdown', 'echo_shutdown', 10 );
It works, i can see “test” at the bottom of my page.
The problem is that if i save my file wordpress warn me with the message: “Something went wrong. Your change may not have been saved. Please try again. There is also a chance that you may need to manually fix and upload the file over FTP.”
I tried also various alternatives to echo: var_dump, print_r, exit(‘test’), ecc… also to use “register_shutdown_function” in place of shutdown wordpress hook. Same result.
When i try to output something during shutdown i receive this error message during saving.
There is a way to output something during shutdown hook without receive the warning?
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