PHP is_float Function PHP
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PHP is_float Function
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
- bool is_float ( mixed $var )
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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