PHP

automatice prevent default the form in php

<form id="sign-up" action="index.php" method="post">
  <label for="user-name">Username</label>
  <input id="user-name" type="text" name="username" required/>

  <label for="user-email">Email</label>
  <input id="user-email" type="email" name="email" required/>

  <input type="submit" name="submit" value="Sign Up" />
</form>
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