get_headers

Function • Params and return types changed in PHP 8.0

Fetches all the headers sent by the server in response to an HTTP request.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6

get_headers Function synopsis

get_headers(
    string $url,
    bool $associative = false,
    $context = null
  ): array|false

Parameters

$url

Typestring

The target URL.

$associative

OptionalTypeboolDefault valuefalse

If the optional $associative parameter is set to true, get_headers parses the response and sets the array's keys.

$context

OptionalDefault valuenull

A valid context resource created with stream_context_create, or null to use the default context.

Return value

Typearray|false

Returns an indexed or associative array with the headers, or false on failure.

Changes to the get_headers Function

PHP 8.0

  • Return type added: array|false
  • Parameter type added for parameter #1 ($url): string
  • Parameter name of parameter #2 changed: $format to $associative
  • Parameter type added for parameter #2 ($associative): bool
  • Parameter default value added for position #2 ($associative): false
  • Parameter default value added for position #3 ($context): null
  get_headers(
-     $url,
+     string $url,
-     $format,
+     bool $associative = false,
-     $context
+     $context = null
-   )
+   ): array|false

PHP 7.1

  • Optional parameter added - #3: $context
-get_headers($url, $format)
+get_headers(
+    $url,
+    $format,
+    $context
+  )

get_headers Function Availability

PHP VersionAvailability
PHP 8.6Upcoming Release Yes
PHP 8.5Supported (Latest) Yes
PHP 8.4Supported Yes
PHP 8.3Security-Fixes Only Yes
PHP 8.2Security-Fixes Only Yes
PHP 8.1Unsupported Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported Yes
PHP 5.3Unsupported Yes