PHP

php check if url exists

<?php
  
// Initialize a URL to the variable
$url = "https://www.geeksforgeeks.org";
  
// Use get_headers() function
$headers = @get_headers($url);
  
// Use condition to check the existence of URL
if($headers && strpos( $headers[0], '200')) {
    $status = "URL Exist";
}
else {
    $status = "URL Doesn't Exist";
}
  
// Display result
echo($status);
  
?>

PHP check if url parameter exists

if(isset($_GET['id']))
{
    // Do something
}

php check if a url exists

function urlExists($url=NULL)
    {
        if($url == NULL) return false;
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_TIMEOUT, 5);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $data = curl_exec($ch);
        $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        curl_close($ch); 
        if($httpcode>=200 && $httpcode<300){
            return true;
        } else {
            return false;
        }
    }

php check if parameter exists in url

print_r($_GET); // to check the parm list in url

if(isset($_GET['id']))
{
  echo $_GET['id'];
    // Do something
}