AphrontPHPHTTPSink.php
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	<?php

	/**
	* Concrete HTTP sink which uses "echo" and "header()" to emit data.
	*/
	final class AphrontPHPHTTPSink extends AphrontHTTPSink {

	protected function emitHTTPStatus($code, $message = '') {
	if ($code != 200) {
	$header = "HTTP/1.0 {$code}";
	if (strlen($message)) {
	$header .= " {$message}";
	}
	header($header);
	}
	}

	protected function emitHeader($name, $value) {
	header("{$name}: {$value}", $replace = false);
	}

	protected function emitData($data) {
	echo $data;

	// NOTE: We don't call flush() here because it breaks HTTPS under Apache.
	// See T7620 for discussion. Even without an explicit flush, PHP appears to
	// have reasonable behavior here: the echo will block if internal buffers
	// are full, and data will be sent to the client once enough of it has
	// been buffered.
	}

	protected function isWritable() {
	return !connection_aborted();
	}

	}