title: Get $Post in PHP with Dot in the name
body: <p>This should be a very basic question in PHP, but I couldn't get a nice solution in web. Please some experts show me with example.</p>
  
  <p>I am trying to read value of 3 textboxes, those names are input_38.1, input_38.2, input_38.3</p>
  
  <p>so my code is echo $_POST['input_38.1']. But it doesn't print the 1st textbox's value. What is the way to get all three textbox's values.</p>
  
  <p>Thanks in advance.</p>