(PHP 4 >= 4.3.0, PHP 5, PHP 7)
ob_get_flush — Flush the output buffer, return it as a string and turn off output buffering
ob_get_flush ( ) : string
ob_get_flush() flushes the output buffer, return it as a string and turns off output buffering.
The output buffer must be started by ob_start() with PHP_OUTPUT_HANDLER_FLUSHABLE flag. Otherwise ob_get_flush() will not work.
Note: This function is similar to ob_end_flush(), except that this function also returns the buffer as a string.
Returns the output buffer or false if no buffering is active.
Example #1 ob_get_flush() example
<?php
//using output_buffering=On
print_r(ob_list_handlers());
//save buffer in a file
$buffer = ob_get_flush();
file_put_contents('buffer.txt', $buffer);
print_r(ob_list_handlers());
?> The above example will output:
Array
(
[0] => default output handler
)
Array
(
)
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https://www.php.net/manual/en/function.ob-get-flush.php