ob_get_contents — Return the contents of the output buffer
ob_get_contents(): string|false
Gets the contents of the output buffer without clearing it.
Example of ob_get_contents
<?php
ob_start();
echo "Hello ";
$out1 = ob_get_contents();
echo "World";
$out2 = ob_get_contents();
ob_end_clean();
var_dump($out1, $out2);
?>
Output
string(6) "Hello "
string(11) "Hello World"