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<?php // Simulate PHP setting for output_buffering. ob_start(); assert(1 === ob_get_level()); ob_end_clean(); assert(0 === ob_get_level()); print 'before the header'; header('AAA:BBB');
Output for git.master, git.master_jit, rfc.property-hooks
before the header Warning: Cannot modify header information - headers already sent by (output started at /in/1aM5E:11) in /in/1aM5E on line 12

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