Key points for using php header function

if(true)
{
 header('location:http://bbs.it-home.org');
}
file_put_contents('test.txt', 'ok');//This That’s it, generate a test.txt file with the content ok

In this code, a careless programmer will think that header('location:http://bbs.it-home.org '); is over. In fact, the background code is still executed, so when using header(location), whether it is encapsulated in another function or written directly, it is recommended to add exit() at the end to confirm the program. Abort.

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