3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php ob_start(); for ($i = 0; $i<10; $i++){ echo "<br> Line to show.\n"; ob_start(); ob_flush(); flush(); } var_dump(ob_get_status(true)); echo "Done."; ob_end_flush();
Output for 5.4.4 - 5.6.28, 7.0.0 - 7.1.0
<br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. array(11) { [0]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(112) ["level"]=> int(0) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [1]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(20592) ["level"]=> int(1) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [2]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(20592) ["level"]=> int(2) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [3]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(20592) ["level"]=> int(3) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [4]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(20592) ["level"]=> int(4) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [5]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(20592) ["level"]=> int(5) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [6]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(20592) ["level"]=> int(6) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [7]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(20592) ["level"]=> int(7) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [8]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(20592) ["level"]=> int(8) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [9]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(20592) ["level"]=> int(9) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [10]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(20592) ["level"]=> int(10) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(0) } } Done.
Output for hhvm-3.10.0 - 3.12.0
<br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. array(11) { [0]=> array(5) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["level"]=> int(0) ["chunk_size"]=> int(0) ["buffer_used"]=> int(19) } [1]=> array(5) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["level"]=> int(1) ["chunk_size"]=> int(0) ["buffer_used"]=> int(19) } [2]=> array(5) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["level"]=> int(2) ["chunk_size"]=> int(0) ["buffer_used"]=> int(19) } [3]=> array(5) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["level"]=> int(3) ["chunk_size"]=> int(0) ["buffer_used"]=> int(19) } [4]=> array(5) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["level"]=> int(4) ["chunk_size"]=> int(0) ["buffer_used"]=> int(19) } [5]=> array(5) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["level"]=> int(5) ["chunk_size"]=> int(0) ["buffer_used"]=> int(19) } [6]=> array(5) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["level"]=> int(6) ["chunk_size"]=> int(0) ["buffer_used"]=> int(19) } [7]=> array(5) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["level"]=> int(7) ["chunk_size"]=> int(0) ["buffer_used"]=> int(19) } [8]=> array(5) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["level"]=> int(8) ["chunk_size"]=> int(0) ["buffer_used"]=> int(19) } [9]=> array(5) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["level"]=> int(9) ["chunk_size"]=> int(0) ["buffer_used"]=> int(19) } [10]=> array(5) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["level"]=> int(10) ["chunk_size"]=> int(0) ["buffer_used"]=> int(0) } } Done.
Output for 5.4.0 - 5.4.3
<br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. array(11) { [0]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(112) ["level"]=> int(0) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [1]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(4208) ["level"]=> int(1) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [2]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(4208) ["level"]=> int(2) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [3]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(4208) ["level"]=> int(3) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [4]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(4208) ["level"]=> int(4) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [5]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(4208) ["level"]=> int(5) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [6]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(4208) ["level"]=> int(6) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [7]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(4208) ["level"]=> int(7) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [8]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(4208) ["level"]=> int(8) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [9]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(4208) ["level"]=> int(9) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(19) } [10]=> array(7) { ["name"]=> string(22) "default output handler" ["type"]=> int(0) ["flags"]=> int(4208) ["level"]=> int(10) ["chunk_size"]=> int(0) ["buffer_size"]=> int(16384) ["buffer_used"]=> int(0) } } Done.
Output for 4.3.0 - 5.3.29
<br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. <br> Line to show. array(11) { [0]=> array(7) { ["chunk_size"]=> int(0) ["size"]=> int(40960) ["block_size"]=> int(10240) ["type"]=> int(1) ["status"]=> int(0) ["name"]=> string(22) "default output handler" ["del"]=> bool(true) } [1]=> array(7) { ["chunk_size"]=> int(0) ["size"]=> int(40960) ["block_size"]=> int(10240) ["type"]=> int(1) ["status"]=> int(1) ["name"]=> string(22) "default output handler" ["del"]=> bool(true) } [2]=> array(7) { ["chunk_size"]=> int(0) ["size"]=> int(40960) ["block_size"]=> int(10240) ["type"]=> int(1) ["status"]=> int(1) ["name"]=> string(22) "default output handler" ["del"]=> bool(true) } [3]=> array(7) { ["chunk_size"]=> int(0) ["size"]=> int(40960) ["block_size"]=> int(10240) ["type"]=> int(1) ["status"]=> int(1) ["name"]=> string(22) "default output handler" ["del"]=> bool(true) } [4]=> array(7) { ["chunk_size"]=> int(0) ["size"]=> int(40960) ["block_size"]=> int(10240) ["type"]=> int(1) ["status"]=> int(1) ["name"]=> string(22) "default output handler" ["del"]=> bool(true) } [5]=> array(7) { ["chunk_size"]=> int(0) ["size"]=> int(40960) ["block_size"]=> int(10240) ["type"]=> int(1) ["status"]=> int(1) ["name"]=> string(22) "default output handler" ["del"]=> bool(true) } [6]=> array(7) { ["chunk_size"]=> int(0) ["size"]=> int(40960) ["block_size"]=> int(10240) ["type"]=> int(1) ["status"]=> int(1) ["name"]=> string(22) "default output handler" ["del"]=> bool(true) } [7]=> array(7) { ["chunk_size"]=> int(0) ["size"]=> int(40960) ["block_size"]=> int(10240) ["type"]=> int(1) ["status"]=> int(1) ["name"]=> string(22) "default output handler" ["del"]=> bool(true) } [8]=> array(7) { ["chunk_size"]=> int(0) ["size"]=> int(40960) ["block_size"]=> int(10240) ["type"]=> int(1) ["status"]=> int(1) ["name"]=> string(22) "default output handler" ["del"]=> bool(true) } [9]=> array(7) { ["chunk_size"]=> int(0) ["size"]=> int(40960) ["block_size"]=> int(10240) ["type"]=> int(1) ["status"]=> int(1) ["name"]=> string(22) "default output handler" ["del"]=> bool(true) } [10]=> array(7) { ["chunk_size"]=> int(0) ["size"]=> int(40960) ["block_size"]=> int(10240) ["type"]=> int(1) ["status"]=> int(1) ["name"]=> string(22) "default output handler" ["del"]=> bool(true) } } Done.