PHP By Example


<?php
// custom callback functions
function cube($n)       { return($n * $n * $n); }
function double($value) { return $value * 2; }

// adds custom callback functions, closures and methods
require "pbx_callbacks.php";
$object = new pbx_callbacks();

$mixed = filter_var_array (
    [
  "width" => 2,
  "length" => 3,
  "height" => 4,
  "weight" => 5,
], // array $data
    [
  "width" => [
    "filter" => FILTER_CALLBACK,
    "options" => "double",
  ],
  "length" => [
    "filter" => FILTER_CALLBACK,
    "options" => $cube,
  ],
  "height" => [
    "filter" => FILTER_CALLBACK,
    "options" => "pbx_callbacks::double",
  ],
  "weight" => [
    "filter" => FILTER_CALLBACK,
    "options" => [
      0 => $object,
      1 => "cube",
    ],
  ],
], // [mixed $definition]
    
✓?  // [bool $add_empty = true]
);
?>


      

                  
            $mixed
            =
            
[
  'width' => '2',
  'length' => '3',
  'height' => '4',
  'weight' => '5',
]

`#1`	`filter_var_array`	(["product_id" => "libgd<script>", "component" => "10", "versions" => "2.0.33", "testscalar" => [0 => "2", 1 => "23", 2 => "10", 3 => "12"], "testarray" => "2"], ["product_id" => FILTER_SANITIZE_ENCODED, "component" => ["filter" => FILTER_VALIDATE_INT, "flags" => FILTER_FORCE_ARRAY, "options" => ["min_range" => 1, "max_range" => 10]], "versions" => FILTER_SANITIZE_ENCODED, "doesnotexist" => FILTER_VALIDATE_INT, "testscalar" => ["filter" => FILTER_VALIDATE_INT, "flags" => FILTER_REQUIRE_SCALAR], "testarray" => ["filter" => FILTER_VALIDATE_INT, "flags" => FILTER_FORCE_ARRAY]])
`#2`	`filter_var_array`	`(["width" => 2, "length" => 3, "height" => 4, "weight" => 5], ["width" => ["filter" => FILTER_CALLBACK, "options" => "double"], "length" => ["filter" => FILTER_CALLBACK, "options" => $cube], "height" => ["filter" => FILTER_CALLBACK, "options" => "pbx_callbacks::double"], "weight" => ["filter" => FILTER_CALLBACK, "options" => [0 => $object, 1 => "cube"]]])`

filter_var_array()