What is a floating point type in PHP data type? How to use PHP floats?

What is the PHP data type floating point? As "newbies", let's continue to explore the mysteries of PHP together! ! ! I believe this article can bring you a better understanding of PHP! ! ! Let's Go!!!

##There are two main ways to declare:

1: Scientific statement

2: Ordinary statement

<?php
//声明浮点型变量$fl
$fl=1432.23424;
echo $fl;
?>

echo is an output function, and although var_dump() is also a function, if you insert a variable into (), this function will print the data type, and The length and value of the variable will also be displayed accordingly.

<?php
//声明浮点型变量$fl
$fl=1432.23424;
var_dump($fl);
?>

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