Normally php sends all text not included in <?php ... ?>, all echos, all prints to the output. Which is send to the err... output: http server (which sends it to a client), console etc.
After ob_start this output is saved in output buffer, so you can later decide what to do with it.
It doesn't affect db connection. It deals with text (mostly) produced by php.
After ob_start this output is saved in output buffer, so you can later decide what to do with it.
It doesn't affect db connection. It deals with text (mostly) produced by php.
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