php man page for splfloat

SPLFLOAT(3)								 1							       SPLFLOAT(3)

The SplFloat class

INTRODUCTION
	The SplFloat class is used to enforce strong typing of the float type.

CLASS SYNOPSIS
       SplFloat

       SplFloatextends
       SplType

       Constants

       o const float$SplFloat::__default0

       Inherited methods

       o

	 SplType::__construct ([mixed  $initial_value], [bool  $strict])

PREDEFINED CONSTANTS
	      o SplFloat::__default -

EXAMPLES
       Example #1

	      SplFloat usage example

	      <?php
	      $float = new SplFloat(3.154);
	      $newFloat = new SplFloat(3);

	      try {
		  $float = 'Try to cast a string value for fun';
	      } catch (UnexpectedValueException $uve) {
		  echo $uve->getMessage() . PHP_EOL;
	      }

	      echo $float . PHP_EOL;
	      echo $newFloat . PHP_EOL;
	      ?>

	      The above example will output:

	      Value not a float
	      3.154
	      3

PHP Documentation Group 													       SPLFLOAT(3)