Help fix php / api / curl code please

Question

What I have in place is a domain availability check, which connects to the API and displays "Available: and Not Available:" from $ tmp. Ths below code will check for ONCE.

I want to check the availability of the domain several times (perhaps in a loop?), Without having to start restarting the cURL connection every time (since it takes time - from 300 ms to 1 s per request) .

I just don’t know how I can connect to cURL once and start the loop (by checking through the API). Help in setting up the code is much appreciated! Minimization of the time required for the output of "available / not available", and a cyclic check of keys.

Thank.

Current code

<?php

    function GetCurlPage ($pageSpec)
    {
      $ch = curl_init($pageSpec);
      curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
      curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
      curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
      $tmp = curl_exec ($ch);
      curl_close ($ch);
      $tmp = preg_replace('/(?s)<meta http-equiv="Expires"[^>]*>/i', '', $tmp);
      $tmp = explode('<br>', $tmp);
      echo $tmp[0];
      echo "<br>";
      echo $tmp[1];
      echo "<br>";
      return $tmp;
    }

$returnUrl = "http://www.mysite.com.au/check.php";
$url = "https://www.apisite.com.au/availability/check.php?domain=testdomain&suffixes=.com.au";
$output = GetCurlPage("$url");

?>

@Marc B

    function getCurlPage($pageSpec) {
if (is_null($ch)) {
    $ch = curl_init($pageSpec);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
} else {
    curl_setopt($ch, CURLOPT_URL, $pageSpec);
}
  while ($i < 5) {
  $tmp = curl_exec ($ch);
  //curl_close ($ch);
  $tmp = preg_replace('/(?s)<meta http-equiv="Expires"[^>]*>/i', '', $tmp);
  $tmp = explode('<br>', $tmp);
  echo $tmp[0];
  echo "<br>";
  echo $tmp[1];
  echo "<br>";
  echo udate('H:i:s:u');
  echo "<br><br>";
  $i++;
  }
      return $tmp;
}

Answer 1

: /keepalive HTTP PHP Curl?

:

function getCurlPage($pageSpec) {
    if (is_null($ch)) 
        static $ch = curl_init($pageSpec);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    } else {
        curl_setopt($ch, CURLOPT_URL, $pageSpec);
    }
    $tmp = curl_exec($ch);
    ... do NOT close the curl handle, otherwise do the rest the same as before ...
}

, , , 2 , , .

, , GetCurlPage("$url"), , PHP , stuff $url . GetCurlPage($url).