(PECL event >= 1.4.0-beta)
Sets a callback for specified URI
public void EventHttp::setCallback ( string $path , string $cb [, string $arg ] )
Sets a callback for specified URI.
Parameters:
path
The path for which to invoke the callback.
cb
The callback callable that gets invoked on requested path
. It should match the following prototype:
arg
Custom data.
Returns:
Returns TRUE
on success. Otherwise FALSE
.
Examples:
EventHttp::setCallback() example
<?php /* * Simple HTTP server. * * To test it: * 1) Run it on a port of your choice, e.g.: * $ php examples/http.php 8010 * 2) In another terminal connect to some address on this port * and make GET or POST request(others are turned off here), e.g.: * $ nc -t 127.0.0.1 8010 * POST /about HTTP/1.0 * Content-Type: text/plain * Content-Length: 4 * Connection: close * (press Enter) * * It will output * a=12 * HTTP/1.0 200 OK * Content-Type: text/html; charset=ISO-8859-1 * Connection: close * * 3) See what the server outputs on the previous terminal window. */ function _http_dump($req, $data) { static $counter = 0; static $max_requests = 2; if (++$counter >= $max_requests) { echo "Counter reached max requests $max_requests. Exiting\n"; exit(); } echo __METHOD__, " called\n"; echo "request:"; var_dump($req); echo "data:"; var_dump($data); echo "\n===== DUMP =====\n"; echo "Command:", $req->getCommand(), PHP_EOL; echo "URI:", $req->getUri(), PHP_EOL; echo "Input headers:"; var_dump($req->getInputHeaders()); echo "Output headers:"; var_dump($req->getOutputHeaders()); echo "\n >> Sending reply ..."; $req->sendReply(200, "OK"); echo "OK\n"; echo "\n >> Reading input buffer ...\n"; $buf = $req->getInputBuffer(); while ($s = $buf->readLine(EventBuffer::EOL_ANY)) { echo $s, PHP_EOL; } echo "No more data in the buffer\n"; } function _http_about($req) { echo __METHOD__, PHP_EOL; echo "URI: ", $req->getUri(), PHP_EOL; echo "\n >> Sending reply ..."; $req->sendReply(200, "OK"); echo "OK\n"; } function _http_default($req, $data) { echo __METHOD__, PHP_EOL; echo "URI: ", $req->getUri(), PHP_EOL; echo "\n >> Sending reply ..."; $req->sendReply(200, "OK"); echo "OK\n"; } $port = 8010; if ($argc > 1) { $port = (int) $argv[1]; } if ($port <= 0 || $port > 65535) { exit("Invalid port"); } $base = new EventBase(); $http = new EventHttp($base); $http->setAllowedMethods(EventHttpRequest::CMD_GET | EventHttpRequest::CMD_POST); $http->setCallback("/dump", "_http_dump", array(4, 8)); $http->setCallback("/about", "_http_about"); $http->setDefaultCallback("_http_default", "custom data value"); $http->bind("0.0.0.0", 8010); $base->loop(); ?>
The above example will output something similar to:
a=12 HTTP/1.0 200 OK Content-Type: text/html; charset=ISO-8859-1 Connection: close
See also:
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