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run code in 200+ php & hhvm versions
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<?php ob_start(); for ($i = 0; $i<10; $i++){ echo "<br> Line to show."; ob_flush(); flush(); sleep(1); } echo "Done."; ob_end_flush();
Output for 4.3.11 - 5.4.22
<br> Line to show.<br> Line to show.<br> Line to show.
Process exited with code 137.