Ob_flush function and flush function usage analysis _php techniques in PHP

This article analyzes the Ob_flush function and flush function usage in PHP. Share to everyone for your reference. Specifically as follows:

Ob_flush () Function: Remove the data from the PHP buffering and put it in the server buffering

Flush () Function: Remove the server buffering data, and put the browser buffering

For example, code:

<?php 
  Echo str_repeat (' M0sh1 ', 1000);   
  For ($i =0 $i <4; $i + +) { 
    echo $i. ' <br/> '; 
    Ob_flush (); 
    Flush (); 
    Sleep (1); 
  } 
? > 
<?php 
//header ("content-type:text/html;charset= ' Utf-8 '"); 
Hint error cannot modify header Information-headers already sent by 
?>

Execution discovery

Here, the output of the code is one line out,

Note: The order in which they are used correctly is. First Ob_flush, then flush.

I hope this article will help you with your PHP program design.