Online PHP editor | rfc for 83uXu

@ 2020-07-09T04:33:12Z

<?php

function validate_length ($options = ['min_length' => 1, 'max_length' => null], $filters = null)
{
    return static function ($value = null) use ($options, $filters) {
        $len = strlen($value);
        if (isset($options['min_length']) && $len < $options['min_length']) {
           return false;
        }
        if (isset($options['max_length']) && $len > $options['max_length']) {
           return false;
        }
        if (null !== $filters) {
            return filter_var($value, ...$filters); //php 5.6+ array spread operator
        }

        return $value;
    };
}



$a = [
   'a' => 'value',
   'b' => '',
   'c' => 'a@example.com',
   'd' => 'This& is a 🍕 Test',
];

$email_filter = [FILTER_VALIDATE_EMAIL, ['flags' => FILTER_FLAG_EMAIL_UNICODE]];
$string_filter = [FILTER_SANITIZE_STRING, ['flags' => FILTER_FLAG_ENCODE_AMP | FILTER_FLAG_STRIP_HIGH]];

$result = filter_var_array ($a, [
    'a' => ['filter' => FILTER_CALLBACK, 'options' => validate_length(['max_length' => 4])], 
    'b' => ['filter' => FILTER_CALLBACK, 'options' => validate_length(['min_length' => 1])], 
    'c' => ['filter' => FILTER_CALLBACK, 'options' => validate_length(['min_length' => 1, 'max_length' => 20], $email_filter)],
    'd' => ['filter' => FILTER_CALLBACK, 'options' => validate_length(['min_length' => 1], $string_filter)],
]);

var_dump($result);

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Constant FILTER_SANITIZE_STRING is deprecated in /in/83uXu on line 31 array(4) { ["a"]=> bool(false) ["b"]=> bool(false) ["c"]=> string(13) "a@example.com" ["d"]=> string(20) "This& is a Test" }

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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