تابع ‎flush()‎‎ در PHP

<?php
// Some browsers will not display the content if it is too short
// We use str_pad() to make the output long enough
echo str_pad("Hello  World!", 4096);

// Use ‎flush()‎ to send the string to the browser
‎flush()‎;

// Display the rest of the content three seconds later
sleep(3);
echo "<br>";
echo "Hello World!";
?>
<?php
// Some browsers will not display the content if it is too short
// We use str_pad() to make the output long enough
echo str_pad("Hello  World!", 4096);

// Use ‎flush()‎ to send the string to the browser
‎flush()‎;

// Display the rest of the content three seconds later
sleep(3);
echo "<br>";
echo "Hello World!";
?>اجرای کد