PHP FILTER_SANITIZE_NUMBER_FLOAT filter
Definition and Usage
FILTER_SANITIZE_NUMBER_FLOAT filter removes all illegal characters from floating-point numbers.
The filter allows all numbers and +-.
- Name: "number_float"
- ID-number: 520
Possible flags:
- FILTER_FLAG_ALLOW_FRACTION - Allow decimal separators (such as .)
- FILTER_FLAG_ALLOW_THOUSAND - Allow thousand separators (such as ,)
- FILTER_FLAG_ALLOW_SCIENTIFIC - Allow scientific notation (such as e and E)
Example
<?php
var_dump(filter_var($number, FILTER_SANITIZE_NUMBER_FLOAT,
FILTER_FLAG_ALLOW_FRACTION));
?>
Output:
string(7) "5-2+3.3"
