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PHP FILTER_SANITIZE_NUMBER_FLOAT filter

Previous: PHP FILTER_SANITIZE_NUMBER_INT filter

Next: PHP FILTER_SANITIZE_MAGIC_QUOTES filter

PHP Filter Reference

Complete PHP Filter Reference

Definition and Usage

FILTER_SANITIZE_NUMBER_FLOAT filters to remove a floating-point number in all illegal characters.

The filter is enabled by default for all Digital + and -

Name: "number_float"
ID-number: 520

Possible signs:

FILTER_FLAG_ALLOW_FRACTION - Allow the decimal separator (for example.)
FILTER_FLAG_ALLOW_THOUSAND - allow thousands separator (for example,)
FILTER_FLAG_ALLOW_SCIENTIFIC - Allow scientific notation (such as e and E)

Examples

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

var_dump(filter_var($number, FILTER_SANITIZE_NUMBER_FLOAT,
FILTER_FLAG_ALLOW_FRACTION));
?>

Output code is as follows:

string(7) "5-2+3.3"

PHP Filter Reference

Complete PHP Filter Reference

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