ob_get_length
PHP 4 >= 4.0.2, PHP 5, PHP 7, PHP 8
ob_get_length - Return the length of the output buffer
Manual
ob_get_length(
): int|false
This will return the length of the contents in the output buffer, in bytes.
Parameters
This function has no parameters.
Return Values
Returns the length of the output buffer contents, in bytes, or false if no buffering is active.