preg_replace http with https

Question

Put simply, I need to check if the string in the variable $url is a simple http, if so, replace it with https - but I can't get it to work - any ideas:

$url="http://www.google.com"; // example http url ##
$url_replaced = preg_replace( '#^http://#','https://', $url ); // replace http with https ##

Cheers!

Answer 1

Why not str_replace ?

$url="http://www.google.com"; // example http url ##
$url = str_replace('http://', 'https://', $url ); 
echo $url;

Answer 2

preg_replace() is unnecessary here. Just use str_replace() .

str_replace('http://', 'https://', $url)

Answer 3

You could always create a simple function that returns the link as secure. Much easier if you need to change a lot of links.

function secureLink($url){

$url = str_replace('http://', 'https://', $url ); 
return $url;
};

Answer 4

Do NOT use str_replace , as it can happen you will replace string in the middle (if the url is not encoded correctly).

preg_replace("/^http:/i", "https:", $url)

Note the /i parameter for case insensitive and ^ saying it have to start with this string.

http://sandbox.onlinephpfunctions.com/code/3c3882b4640dad9b6988881c420246193194e37e