PHP socket_set_timeout() Function

The PHP socket_set_timeout() function sets the timeout value on the given stream, expressed in the sum of seconds and microseconds.

When the stream times out, the 'timed_out' key of the array returned by socket_get_status() is set to true, although no error/warning is generated.

This function is an alias of stream_set_timeout() function.

Syntax

socket_set_timeout(stream, seconds, microseconds)

Parameters

`stream`	`Required.` Specify the target stream.
`seconds`	`Required.` Specify the seconds part of the timeout to be set.
`microseconds`	`Optional.` Specify the microseconds part of the timeout to be set. Default is 0.

Return Value

Returns true on success or false on failure.

Example:

The example below shows the usage of socket_set_timeout() function.

<?php
$fp = fsockopen("www.example.com", 80);
if (!$fp) {
  echo "Unable to open\n";
} else {
  fwrite($fp, "GET / HTTP/1.0\r\n\r\n");
  socket_set_timeout($fp, 2);
  $res = fread($fp, 500);

  $info = socket_get_status($fp);
  fclose($fp);

  if ($info['timed_out']) {
    echo 'Connection timed out!';
  } else {
    echo $res;
  }
}
?>

The output of the above code will be similar to:

HTTP/1.0 404 Not Found
Content-Type: text/html
Date: Sun, 24 Oct 2021 05:01:00 GMT
Server: ECS (dna/63B4)
Content-Length: 345
Connection: close

<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
         "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
    <head>
        <title>404 - Not Found</title>
    </head>
    <body>
        <h1>404 - Not Found</h1>
    </body>
</html>

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