35 lines
796 B
PHP
35 lines
796 B
PHP
<?php
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namespace App\SSE;
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/**
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* Small class to abstract Server-Sent Events (SSE)
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*
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* https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events
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*/
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class Sender
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{
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public function __construct()
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{
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header("Cache-Control: no-store");
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header("Content-Type: text/event-stream");
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// as session data is locked to prevent concurrent writes we
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// make it read only to prevent the server from locking up
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session_write_close();
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}
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public function send($data, $event = NULL): void
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{
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if ($event)
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{
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echo "event: $event\n";
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}
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echo "data: " . json_encode($data) ."";
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echo "\n\n";
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// send data to stream
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ob_end_flush();
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flush();
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}
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} |