PHP Floating Point Numbers

• PHP recognizes two types of floating point numbers. The first is a simple numeric literal with a decimal point. The second is a floating-point number written in scientific notation. Scientific notation takes the form of [number]E[exponent], for example, 1.75E-2.

  Some examples of valid floating point numbers include: 

  3.14
  0.001
  -1.234 
  0.314E2  // 31.4 
  1.234E-5 // 0.00001234
  -3.45E-3 // -0.00345 
  
  
  Example : The PHP var_dump() function returns the data type and value of variables:
  
  
  <?php
  $x = 10.365;
  var_dump($x);
  echo "<br>";
  ?>