PHP code example of thorough-php / arrays

1. Go to this page and download the library: Download thorough-php/arrays library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

thorough-php / arrays example snippets


    $array = new CompositeKeyArray([
        'foo' => [
            'bar' => 'baz'
        ]
    ]);

    var_dump(isset($array[['foo', 'bar']])); // => bool(true)
    var_dump(isset($array[['foo', 'quux']])); // => bool(false)


    $array = new CompositeKeyArray([
        'foo' => [
            'bar' => 'baz'
        ]
    ]);

    var_dump($array[['foo', 'bar']]); // => string(3) "baz"
    var_dump($array[['foo', 'quux']]); // => PHP Fatal error:  Uncaught UndefinedOffsetException: Undefined offset quux.


    $array = new CompositeKeyArray();

    $array[['foo', 'bar']] = 'baz';

    var_dump($array[['foo', 'bar']]); // => string(3) "baz"


    $array = new CompositeKeyArray([
        'foo' => []
    ]);

    $array['foo']['bar'] = 'baz'; // => PHP Notice:  Indirect modification of overloaded element of CompositeKeyArray has no effect

    var_dump($array['foo']); // => array(0) {}

    $array[['foo', 'bar']] = 'baz';

    var_dump($array['foo']); // => array(1) {["bar"] => string(3) "baz"}


    $array = new CompositeKeyArray([
        'foo' => []
    ]);

    $array[[[]]] = 'bar';
    $array[['foo', []]] = 'baz';
    $array[['foo', []]] = 'qux';

    var_dump($array->toArray());

    // => array(2) {
    //    ["foo"]=>
    //        array(2) {
    //            [0]=>
    //                string(3) "baz"
    //            [1]=>
    //                string(3) "qux"
    //        }
    //    [0]=>
    //        string(3) "bar"
    // }



    $array = new CompositeKeyArray([
        'foo' => [
            'bar' => 'baz'
        ]
    ]);

    unset($array[['foo', 'bar']]);

    var_dump($array['foo']); // => array(0) {}


    $array = new XPathKeyArray([
        'foo' => [
            'bar' => 'baz'
        ]
    ]);

    var_dump($array['foo/bar']); // => string(3) "baz"


    $array = new DottedKeyArray([
        'foo' => [
            'bar' => 'baz'
        ]
    ]);

    var_dump($array['foo.bar']); // => string(3) "baz"


$array = new WriteOnceArray();

$array['foo'] = 'bar'; // => OK
$array['foo'] = 'baz'; // => throws `IllegalOffsetException`


$array = new WriteOnceArray([
    'foo' => 'bar',
]);

unset($array['foo']); // => throws `IllegalOffsetUnsetMethodCallException`