PHP Numbers
You must have noticed one thing that whenever we take the numbers in the identification, then its conversion becomes automatic Or we can say that whatever number we give through Varible, the data type of the number is automatically correct according to its data type.Then, if you assign a string to the same variable, the type will change to a string. PHP numbers with integersThis automatic conversion can sometimes break your code.
PHP Floats
A float is a number with a decimal point or a number in exponential form.
2.0, 256.4, 10.358, 7.64E+5, 5.56E-5 are all floats.
The float data type can commonly store a value up to 1.7976931348623E+308 (platform dependent), and have a maximum precision of 14 digits.
PHP has the following functions to check if the type of a variable is float:
- is_float()
- is_double() - alias of is_float()
Example
Check if the type of a variable is float:
<!DOCTYPE html>
<html>
<head>
<title> PHP numbers with floats </title>
</head>
<body>
<h1> </h1>
<?php
// check if the type of a variable is integer
<html>
<head>
<title> PHP numbers with floats </title>
</head>
<body>
<h1> </h1>
<?php
// check if the type of a variable is integer
$x = 574.92;
var_dump(is_float($x));
echo "<br>";
// check again
$z = 542;
var_dump(is_float($z));
?>
bool(true)
bool(false)
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