PHP headers_list () function
Complete PHP HTTP Reference Manual Definition and Usage
headers_list () function returns sent (or to be sent) in response to a list of the head.
This function returns an array containing the header.
grammar
headers_list()
Tips and Notes
Tip: To determine whether the transmission header, use headers_sent () function.
Example 1
<?php
setcookie("TestCookie","SomeValue"');
header("X-Sample-Test: foo");
header('Content-type: text/plain');
?>
<html>
<body>
<?php
// What headers are to be sent?
var_dump(headers_list());
?>
</body>
</html>
setcookie("TestCookie","SomeValue"');
header("X-Sample-Test: foo");
header('Content-type: text/plain');
?>
<html>
<body>
<?php
// What headers are to be sent?
var_dump(headers_list());
?>
</body>
</html>
The code above will output:
array(4)
{
[0]=> string(23) "X-Powered-By: PHP/5.1.1"
[1]=> string(19) "Set-Cookie: TestCookie=SomeValue"
[2]=> string(18) "X-Sample-Test: foo"
[3]=> string(24) "Content-type: text/plain"
}
{
[0]=> string(23) "X-Powered-By: PHP/5.1.1"
[1]=> string(19) "Set-Cookie: TestCookie=SomeValue"
[2]=> string(18) "X-Sample-Test: foo"
[3]=> string(24) "Content-type: text/plain"
}
Complete PHP HTTP Reference Manual