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PHP filter-SANITIZE_NUMBER_FLOAT Filter

PHP Filter Reference

Complete PHP Filter Reference

Definition and Usage

The filter-SANITIZE_NUMBER_FLOAT filter removes all illegal characters from a float number.

This filter allows digits and + - by default

Name: "number_float"
ID-number: 520

Possible flags:

filter-FLAG_ALLOW_FRACTION - Allow fraction separator (like . )
filter-FLAG_ALLOW_THOUSAND - Allow thousand separator (like , )
filter-FLAG_ALLOW_SCIENTIFIC - Allow scientific notation (like e and E)

Example

<?php
$number="5-2f+3.3pp";

var_dump(filter-var($number, filter-SANITIZE_NUMBER_FLOAT,
filter-FLAG_ALLOW_FRACTION));
?>

The output of the code will be:

string(7) "5-2+3.3"

PHP Filter Reference

Complete PHP Filter Reference

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