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PHP is_float Function

By using this function, we can check that the input value is float or not. This function was introduced in PHP 4.0.

Syntax

Parameters

Parameter	Description	Is compulsory
var	The variable being evaluated.	compulsory

Return type:

The is_float() function returns TRUE if the var_name is float, otherwise false.

Example 1

<?php
	$x=123.41;
	echo is_float($x);
?>

Output:

Example 2

<?php
	$a=123.41;
	$b=12;
	var_dump (is_float($a));
	var_dump (is_float($b));
?>

Output:

Example 3

<?php
	$var_name=126.56;
	if (is_float($var_name))
	echo 'This is a float value.<br>';
	else
	echo 'This is not a float value.<br>';
	var_dump(is_float('javatpoint'));
	echo '<br>';
	var_dump(is_float(85));
?>

Output:

Precision::

It is a configuration setting in php.ini used to specify a total number of digits displayed in floating point number.

Here it is:

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PHP is_float Function

Syntax

Parameters

Return type:

Example 1

Example 2

Example 3

Precision::

Here it is:

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