问题
I have a very simple PHP script as follows:
<?php
echo "$$";
?>
On wifi or wired connections, the output is normal, as follows:
$$
But on my cellular connection (which is LTE on AT&T), the output is:
$$0
What's up with the zero in the output?
The issue only seems to happen on AT&T network, I tried on Verizon network and it was working.
回答1:
Adding this line of code solved the problem:
header('Content-Type: text/plain; charset=utf-8');
来源：https://stackoverflow.com/questions/25467118/php-script-has-extra-0-at-the-end-of-the-output-on-a-cellular-connection