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in Technique[技术] by (71.8m points)

php - Calling ob_flush() and flush(), yet browser doesn't show any output until script finishes

Hi Please View Below Code :

<?php
ob_start();

echo "Start ...<br />
";
for( $i = 0 ; $i < 10 ; $i++ )
{
    echo "$i<br />
";
    ob_flush(); 
    flush();
    sleep(1);
}
echo "End ...<br />
";
?>

It's Incorrect ? i'm tested it but my output show when script is done, have any solution ?

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1 Reply

0 votes
by (71.8m points)

Hey man I was also got stuck in this problem and finally got the correct solution here it is for you

you have to add content type for your page you can do that by two ways 1. using html tag

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

Ex.

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Wp Migration</title>
</head>
<body>
<?php 
for($i=0;$i<70;$i++)
{
echo 'printing...<br>';
ob_flush();
flush();
sleep(3);
}
?>
</body>
</html>
  1. using php header function

    <?php header( 'Content-type: text/html; charset=utf-8' ); ?>

Ex.

<?php 
header( 'Content-type: text/html; charset=utf-8' );
for($i=0;$i<70;$i++)
{
echo 'printing...<br>';
ob_flush();
flush();
sleep(3);
}
?>

All the best


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