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PHP Build a Basic PHP Website (2018) Adding a Basic Form Redirecting After a Form Submission

Carlos Enrique Castañeda Gutiérrez
Carlos Enrique Castañeda Gutiérrez
13,886 Points

Question about header() and output_buffering

Hello, I have some doubts about using header()

1.- According to php documentation: "Remember that header() must be called before any actual output is sent, either by normal HTML tags, blank lines in a file, or from PHP". Mrs Alena use a big echo command to print the data, isn't considered an output?. In theory it shouldn't work but it does because something called output_buffering (I read on other question here). My question is: When is good idea to activate output_buffering, and when not? is it a good idea to keep it on even on production environment?

2.- Whe Alena didn't use exit command? because there weren't any code after the header?

3.- Is it my opinion but PHP can easily became messy?, for example let's say I have several php pages and uses several includes, and then I want to use header() to redirect to another page. It can be a hell to track the error, in this situation is it good idea to active the output_buffering to rid off the error. Is this a good use of that?