Prepend http to a URL

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Some times you need to accept some url as input but users seldom add http:// to it, this code will add http:// to the URL if it’s not there.

Copy this code and paste it in your HTML
  1. if (!preg_match("/^(http|ftp):/", $_POST['url'])) {
  2. $_POST['url'] = 'http://'.$_POST['url'];
  3. }

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