PHP headers_list() Function
 Complete PHP HTTP Reference
Definition and Usage
The headers_list() function returns a list of response headers sent (or ready to send) to a client.
This function returns an array of headers.
Syntax
Tips and Notes
Tip: To determine whether or not the headers have been sent yet, use
the 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>
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The output of the code above will be:
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"
}
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Complete PHP HTTP Reference
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