Basically, I'm using gethostbyname() to get the IP address of the specified URL, using parse_url() to determine the specific domain. However, this doesn't work if http:// is not in the URL (unless I'm missing an option)
So how can I check if http:// is in the URL, and if not, add it appropriately?
Or if have a better alternative, I'd like to hear it. Thanks.
<?php
$url = [some url here];
if(substr($url, 0, 7) != 'http://') {
$url = 'http://' . $url;
}
?>
Hmm, strictly speaking, you need to consider https as well, and maybe even ftp and mailto depending on what you are doing. You might want to check for a ':' first, without one you DEFINITELY don't have a protocol, and could skip the rest, with one you might have a protocol, or maybe a port specification.
<?php
$url = [some url here];
if(substr($url, 0, 7) != 'http://') {
if(substr($url, 0, 8) != 'https://') {
$url = 'http://' . $url;
}
}
?>
etc
Simple solution:
if(!preg_match('/http[s]?:\/\//', $url, $matches)) $url = 'http://'.$url;
if (strpos("http://", $url) === "true"){
action
};
false if the string is not found. It will not ever return boolean true and certainly not string 'true'. if (strpos("http://", $url) !== false) would test if it was found in the whole string, or to see if it's at the start of the string, if (strpos("http://", $url) === 0)