Created
March 14, 2025 00:59
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PHP SSE
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <title>SSE Output</title> | |
| </head> | |
| <body> | |
| <h1>Live Output:</h1> | |
| <pre id="output"></pre> | |
| <script> | |
| const eventSource = new EventSource("sse.php"); | |
| eventSource.onmessage = function(event) { | |
| document.getElementById("output").innerText += event.data + "\n"; | |
| }; | |
| eventSource.onerror = function() { | |
| console.error("SSE connection lost."); | |
| eventSource.close(); | |
| }; | |
| </script> | |
| </body> | |
| </html> |
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| <?php | |
| header('Content-Type: text/event-stream'); | |
| header('Cache-Control: no-cache'); | |
| header('Connection: keep-alive'); | |
| error_reporting(E_ALL); | |
| ini_set('display_errors', 1); | |
| echo "data: Starting process...\n\n"; | |
| flush(); | |
| $cmd = '/bin/ping -c 5 google.com'; | |
| $descriptors = [ | |
| 1 => ['pipe', 'w'], // stdout | |
| 2 => ['pipe', 'w'] // stderr | |
| ]; | |
| $process = proc_open($cmd, $descriptors, $pipes); | |
| if (!is_resource($process)) { | |
| echo "data: Error: Failed to start process\n\n"; | |
| flush(); | |
| exit; | |
| } | |
| - | |
| if (!isset($pipes[1]) || !isset($pipes[2]) || !is_resource($pipes[1]) || !is_resource($pipes[2])) { | |
| echo "data: Error: Pipe creation failed\n\n"; | |
| flush(); | |
| proc_close($process); | |
| exit; | |
| } | |
| stream_set_blocking($pipes[1], false); | |
| stream_set_blocking($pipes[2], false); | |
| while (true) { | |
| $stdout = fgets($pipes[1]) ?: ""; | |
| $stderr = fgets($pipes[2]) ?: ""; | |
| if (!empty($stdout)) { | |
| echo "data: " . trim($stdout) . "\n\n"; | |
| ob_flush(); | |
| flush(); | |
| } | |
| if (!empty($stderr)) { | |
| echo "data: [ERROR] " . trim($stderr) . "\n\n"; | |
| ob_flush(); | |
| flush(); | |
| } | |
| $status = proc_get_status($process); | |
| if (!$status['running']) { | |
| break; | |
| } | |
| usleep(100000); // wait to aviod buffer overflow | |
| } | |
| // close all pipes | |
| foreach ($pipes as $pipe) { | |
| if (is_resource($pipe)) { | |
| fclose($pipe); | |
| } | |
| } | |
| proc_close($process); | |
| echo "data: Done!\n\n"; | |
| flush(); |
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