php is_float() Function – Check if Variable is Float in php

The php is_float() function checks if a variable is a float or not. If the given variable is a float, is_float() returns TRUE. Otherwise, is_float() returns FALSE.

$float = 1.0;
$array = array(1,2,3);
$string = "This is a string";

var_dump(is_float($float));
var_dump(is_float($array));
var_dump(is_float($string));

// Output:
bool(true)
bool(false)
bool(false)

When working with different variables in your php programs, the ability to easily check and know if a variable is of a certain type is very valuable.

One such case is when you want to know if a variable is a float. The php is_float() function allows us to check if a variable is a float.

To use is_float(), just pass the variable you want to check. If the given variable is a float, is_float() returns TRUE. Otherwise, is_float() returns FALSE.

Below are a few examples of using the is_float() to find out if a variable is a float or not in php.

$float = 1.0;
$array = array(1,2,3);
$string = "This is a string";

var_dump(is_float($float));
var_dump(is_float($array));
var_dump(is_float($string));

// Output:
bool(true)
bool(false)
bool(false)

How to Check if a Variable is a String in php

There are many other functions which allow us to check the data type of different variables in php.

Another case is if you want to check if a variable is a string variable.

The php is_string() function checks if a variable is a string variable in the similar way to is_float() – just pass the variable you want to check to is_string().

Below is an example which shows you how to use is_string() to check if a variable is a string in php.

$array = array(1,2,3);
$float = 1.0;
$string = "This is a string";

var_dump(is_string($array));
var_dump(is_string($float));
var_dump(is_string($string));

// Output:
bool(false)
bool(false)
bool(true)

How to Check if a Variable is an Array in php

There are many other functions which allow us to check the data type of different variables in php.

Another case is if you want to check if a variable is an array variable.

The php is_array() function checks if a variable is an array variable in the similar way to is_float() – just pass the variable you want to check to is_array().

Below is an example which shows you how to use is_array() to check if a variable is an array in php.

$array = array(1,2,3);
$float = 1.0;
$string = "This is a string";

var_dump(is_array($array));
var_dump(is_array($float));
var_dump(is_array($string));

// Output:
bool(true)
bool(false)
bool(false)

Hopefully this article has been useful for you to learn how to use the is_float() function in php to check if a variable is a float.