Are there any best practices for generating and handling the Content-Length header in PHP applications?

When sending HTTP responses in PHP applications, it is important to include the Content-Length header to specify the size of the response body. This header helps the client know how much data to expect, preventing issues such as incomplete or truncated responses. To generate and handle the Content-Length header in PHP, you can calculate the length of the response body and set the header using the header() function. 

// Calculate the length of the response body
$responseBody = "Hello, World!";
$contentLength = strlen($responseBody);

// Set the Content-Length header
header('Content-Length: ' . $contentLength);

// Send the response body
echo $responseBody;

Keywords

HTTP headers Content-Length PHP applications handling generation

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