PHP validation (two conditions)

Question

I am making a json validation that needs to validate url that starts with http:// or https://

  if(preg_match("/^[http://][a-zA-Z -]+$/", $_POST["url"]) === 0)
  if(preg_match("/^[https://][a-zA-Z -]+$/", $_POST["url"]) === 0)

Am I wrong in synatx, and also how should i combine both (http and https) in same statement ?

Thank you !

Hope this link will help you : https://stackoverflow.com/questions/6427530/regular-expression-pattern-to-match-url-with-or-without-http-www — Jayesh Raipure, Sep 06 '17 at 08:54

Niklesh Raut · Answer 1 · 2017-09-06T09:06:44.507

1

Use $_SERVER['HTTPS']

 $isHttps = (isset($_SERVER['HTTPS']) && !empty($_SERVER['HTTPS']) ? true : false;

edited Sep 06 '17 at 09:06

answered Sep 06 '17 at 08:45

Niklesh Raut

34,013
16
75
109

score 0 · Answer 2 · answered Sep 06 '17 at 08:50

you can use parse_url

<?php
$url = parse_url($_POST["url"]);

if($url['scheme'] == 'https'){
   // is https;
}else if($url['scheme'] == 'http'){
   // is http;
}
// try to do this, so you can know what is the $url contains 
echo '<pre>';print_r($url);echo '</pre>';
?>

OR

<?php
if (substr($_POST["url"], 0, 7) == "http://")
    $res = "http";

if (substr($_POST["url"], 0, 8) == "https://")
    $res = "https";

?>

score 0 · Answer 3 · answered Sep 06 '17 at 15:43

0

If you want to check your string starts with http:// or https:// without worrying about the validity of the whole URL, just do that :

<?php
if (preg_match('`^https?://.+`i', $_POST['url'])) {
    // $_POST['url'] starts with http:// or https://
}

answered Sep 06 '17 at 15:43

Geoffray Warnants

82
4

PHP validation (two conditions)

3 Answers3