headers_sent
symfony/var-dumper
Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
Checks if or where headers have been sent
headers_sent
(
string
&
$filename
=
null
,
int
&
$line
=
null
):
bool
function
dd
(...
$vars
)
{
if (!
in_array
(
\PHP_SAPI
, [
'cli'
,
'phpdbg'
],
true
) && !
headers_sent
()) {
header
(
'HTTP/1.1 500 Internal Server Error'
);
}
Resources/functions/dump.php