How Can I Set HTTP Headers When Using PHP's file_get_contents()?

Setting HTTP Headers with PHP's file_get_contents()

Introduction:
PHP's file_get_contents() function enables the retrieval of file contents via a URL. However, can we extend its functionality to transmit HTTP headers alongside the request?

Addressing the Question:
While file_get_contents() does not natively support sending HTTP headers, there is an alternative solution using stream contexts.

Implementation:
To specify HTTP headers, create a stream context using stream_context_create() and include the desired headers within the "http" array, using the following syntax:

$opts = [
    "http" => [
        "method" => "GET",
        "header" => "Accept-language: en\r\n" .
            "Cookie: foo=bar\r\n"
    ]
];

Subsequently, provide this context to file_get_contents() as the third parameter, as seen below:

$file = file_get_contents('http://www.example.com/', false, $context);

Conclusion:
This solution allows us to set custom HTTP headers when utilizing file_get_contents(), empowering us to control the request behavior and potentially enhance its functionality.

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