### Symfony Polyfill Usage Examples

Source: https://github.com/symfony/polyfill/blob/1.x/tests/Intl/Idn/IdnaTestV2.txt

This section provides examples of how to use different polyfills from the Symfony project. The examples demonstrate the structure of the data and the expected format for various polyfill configurations.

```php
𐫓ߘ牅ࣸ。𞦤ᨗ򱍰Ⴙ; 𐫓ߘ牅ࣸ.𞦤ᨗ򱍰Ⴙ; [B2, B3, P1, V6]; xn--zsb09cu46vjs6f.xn--xnd909bv540bm5k9d; ; ;  # 𐫓ߘ牅ࣸ.ᨗႹ
𐫓ߘ牅ࣸ。𞦤ᨗ򱍰ⴙ; 𐫓ߘ牅ࣸ.𞦤ᨗ򱍰ⴙ; [B2, B3, P1, V6]; xn--zsb09cu46vjs6f.xn--gmf469fr883am5r1e; ; ;  # 𐫓ߘ牅ࣸ.ᨗⴙ
xn--zsb09cu46vjs6f.xn--gmf469fr883am5r1e; 𐫓ߘ牅ࣸ.𞦤ᨗ򱍰ⴙ; [B2, B3, V6]; xn--zsb09cu46vjs6f.xn--gmf469fr883am5r1e; ; ;  # 𐫓ߘ牅ࣸ.ᨗⴙ
xn--zsb09cu46vjs6f.xn--xnd909bv540bm5k9d; 𐫓ߘ牅ࣸ.𞦤ᨗ򱍰Ⴙ; [B2, B3, V6]; xn--zsb09cu46vjs6f.xn--xnd909bv540bm5k9d; ; ;  # 𐫓ߘ牅ࣸ.ᨗႹ
𐫓ߘ牅ࣸ｡𞦤ᨗ򱍰ⴙ; 𐫓ߘ牅ࣸ.𞦤ᨗ򱍰ⴙ; [B2, B3, P1, V6]; xn--zsb09cu46vjs6f.xn--gmf469fr883am5r1e; ; ;  # 𐫓ߘ牅ࣸ.ᨗⴙ
񣤒｡륧; 񣤒.륧; [P1, V6]; xn--s264a.xn--pw2b; ; ;  # .륧
񣤒｡륧; 񣤒.륧; [P1, V6]; xn--s264a.xn--pw2b; ; ;  # .륧
񣤒。륧; 񣤒.륧; [P1, V6]; xn--s264a.xn--pw2b; ; ;  # .륧
񣤒。륧; 񣤒.륧; [P1, V6]; xn--s264a.xn--pw2b; ; ;  # .륧xn--s264a.xn--pw2b; 񣤒.륧; [V6]; xn--s264a.xn--pw2b; ; ;  # .륧
𐹷‍。󉵢; 𐹷‍.󉵢; [B1, C2, P1, V6]; xn--1ugx205g.xn--8088d; ; xn--vo0d.xn--8088d; [B1, P1, V6] # 𐹷. xn--vo0d.xn--8088d; 𐹷.󉵢; [B1, V6]; xn--vo0d.xn--8088d; ; ;  # 𐹷. xn--1ugx205g.xn--8088d; 𐹷‍.󉵢; [B1, C2, V6]; xn--1ugx205g.xn--8088d; ; ;  # 𐹷. 
Ⴘۂ𑲭｡-; Ⴘۂ𑲭.-; [B1, B5, B6, P1, V3, V6]; xn--1kb312c139t.-; ; ;  # Ⴘۂ𑲭.- 
Ⴘۂ𑲭｡-; Ⴘۂ𑲭.-; [B1, B5, B6, P1, V3, V6]; xn--1kb312c139t.-; ; ;  # Ⴘۂ𑲭.- 
Ⴘۂ𑲭。-; Ⴘۂ𑲭.-; [B1, B5, B6, P1, V3, V6]; xn--1kb312c139t.-; ; ;  # Ⴘۂ𑲭.- 
Ⴘۂ𑲭。-; Ⴘۂ𑲭.-; [B1, B5, B6, P1, V3, V6]; xn--1kb312c139t.-; ; ;  # Ⴘۂ𑲭.- 
ⴘۂ𑲭。-; ⴘۂ𑲭.-; [B1, B5, B6, V3]; xn--1kb147qfk3n.-; ; ;  # ⴘۂ𑲭.- 
ⴘۂ𑲭。-; ⴘۂ𑲭.-; [B1, B5, B6, V3]; xn--1kb147qfk3n.-; ; ;  # ⴘۂ𑲭.- 
xn--1kb147qfk3n.-; ⴘۂ𑲭.-; [B1, B5, B6, V3]; xn--1kb147qfk3n.-; ; ;  # ⴘۂ𑲭.- 
xn--1kb312c139t.-; Ⴘۂ𑲭.-; [B1, B5, B6, V3, V6]; xn--1kb312c139t.-; ; ;  # Ⴘۂ𑲭.- 
ⴘۂ𑲭｡-; ⴘۂ𑲭.-; [B1, B5, B6, V3]; xn--1kb147qfk3n.-; ; ;  # ⴘۂ𑲭.- 
ⴘۂ𑲭｡-; ⴘۂ𑲭.-; [B1, B5, B6, V3]; xn--1kb147qfk3n.-; ; ;  # ⴘۂ𑲭.- 
꠆ٻ₆ᡐ。🛇ﳝ; ꠆ٻ6ᡐ.🛇يم; [B1, V5]; xn--6-rrc018krt9k.xn--hhbj61429a; ; ;  # ꠆ٻ6ᡐ.🛇يم 
꠆ٻ6ᡐ。🛇يم; ꠆ٻ6ᡐ.🛇يم; [B1, V5]; xn--6-rrc018krt9k.xn--hhbj61429a; ; ;  # ꠆ٻ6ᡐ.🛇يم 
xn--6-rrc018krt9k.xn--hhbj61429a; ꠆ٻ6ᡐ.🛇يم; [B1, V5]; xn--6-rrc018krt9k.xn--hhbj61429a; ; ;  # ꠆ٻ6ᡐ.🛇يم 
򸍂.㇄ᡟ𐫂آ; ; [B1, P1, V6]; xn--p292d.xn--hgb154ghrsvm2r; ; ;  # .㇄ᡟ𐫂آ 
򸍂.㇄ᡟ𐫂آ; 򸍂.㇄ᡟ𐫂آ; [B1, P1, V6]; xn--p292d.xn--hgb154ghrsvm2r; ; ;  # .㇄ᡟ𐫂آ 
xn--p292d.xn--hgb154ghrsvm2r; 򸍂.㇄ᡟ𐫂آ; [B1, V6]; xn--p292d.xn--hgb154ghrsvm2r; ; ;  # .㇄ᡟ𐫂آ 
ߟ򵚌。-ߩ; ߟ򵚌.-ߩ; [B1, B2, B3, P1, V3, V6]; xn--6sb88139l.xn----pdd; ; ;  # ߟ.-ߩ 
xn--6sb88139l.xn----pdd; ߟ򵚌.-ߩ; [B1, B2, B3, V3, V6]; xn--6sb88139l.xn----pdd; ; ;  # ߟ.-ߩ 
ςك⾑．‌ᢟ‌⒈; ςك襾.‌ᢟ‌⒈; [B1, B5, C1, P1, V6]; xn--3xa69jux8r.xn--pbf519aba607b; ; xn--4xa49jux8r.xn--pbf212d; [B5, P1, V6] # ςك襾.ᢟ⒈ 
ςك襾.‌ᢟ‌1.; ; [B1, B5, C1]; xn--3xa69jux8r.xn--1-4ck691bba.; ; xn--4xa49jux8r.xn--1-4ck.; [B5] # ςك襾.ᢟ1. 
Σك襾.‌ᢟ‌1.; σك襾.‌ᢟ‌1.; [B1, B5, C1]; xn--4xa49jux8r.xn--1-4ck691bba.; ; xn--4xa49jux8r.xn--1-4ck.; [B5] # σك襾.ᢟ1. 
σك襾.‌ᢟ‌1.; ; [B1, B5, C1]; xn--4xa49jux8r.xn--1-4ck691bba.; ; xn--4xa49jux8r.xn--1-4ck.; [B5] # σك襾.ᢟ1. 
xn--4xa49jux8r.xn--1-4ck.; σك襾.ᢟ1.; [B5]; xn--4xa49jux8r.xn--1-4ck.; ; ;  # σك襾.ᢟ1. 
xn--4xa49jux8r.xn--1-4ck691bba.; σك襾.‌ᢟ‌1.; [B1, B5, C1]; xn--4xa49jux8r.xn--1-4ck691bba.; ; ;  # σك襾.ᢟ1. 
xn--3xa69jux8r.xn--1-4ck691bba.; ςك襾.‌ᢟ‌1.; [B1, B5, C1]; xn--3xa69jux8r.xn--1-4ck691bba.; ; ;  # ςك襾.ᢟ1. 
Σك⾑．‌ᢟ‌⒈; σك襾.‌ᢟ‌⒈; [B1, B5, C1, P1, V6]; xn--4xa49jux8r.xn--pbf519aba607b; ; xn--4xa49jux8r.xn--pbf212d; [B5, P1, V6] # σك襾.ᢟ⒈ 
σك⾑．‌ᢟ‌⒈; σك襾.‌ᢟ‌⒈; [B1, B5, C1, P1, V6]; xn--4xa49jux8r.xn--pbf519aba607b; ; xn--4xa49jux8r.xn--pbf212d; [B5, P1, V6] # σك襾.ᢟ⒈ 
xn--4xa49jux8r.xn--pbf212d; σك襾.ᢟ⒈; [B5, V6]; xn--4xa49jux8r.xn--pbf212d; ; ;  # σك襾.ᢟ⒈ 
xn--4xa49jux8r.xn--pbf519aba607b; σك襾.‌ᢟ‌⒈; [B1, B5, C1, V6]; xn--4xa49jux8r.xn--pbf519aba607b; ; ;  # σك襾.ᢟ⒈ 
xn--3xa69jux8r.xn--pbf519aba607b; ςك襾.‌ᢟ‌⒈; [B1, B5, C1, V6]; xn--3xa69jux8r.xn--pbf519aba607b; ; ;  # ςك襾.ᢟ⒈ 
ᡆ𑓝．𞵆; ᡆ𑓝.𞵆; [P1, V6]; xn--57e0440k.xn--k86h; ; ;  # ᡆ. 
ᡆ𑓝.𞵆; ; [P1, V6]; xn--57e0440k.xn--k86h; ; ;  # ᡆ. 
xn--57e0440k.xn--k86h; ᡆ𑓝.𞵆; [V6]; xn--57e0440k.xn--k86h; ; ;  # ᡆ. 
੍𦍓ᷮ｡‌ࢽ񝹲; ੍𦍓ᷮ.‌ࢽ񝹲; [B1, C1, P1, V5, V6]; xn--ybc461hph93b.xn--jzb740j1y45h; ; xn--ybc461hph93b.xn--jzb29857e; [B1, B2, B3, P1, V5, V6] # ੍𦍓ᷮ.ࢽ 
੍𦍓ᷮ。‌ࢽ񝹲; ੍𦍓ᷮ.‌ࢽ񝹲; [B1, C1, P1, V5, V6]; xn--ybc461hph93b.xn--jzb740j1y45h; ; xn--ybc461hph93b.xn--jzb29857e; [B1, B2, B3, P1, V5, V6] # ੍𦍓ᷮ.ࢽ 
xn--ybc461hph93b.xn--jzb29857e; ੍𦍓ᷮ.ࢽ񝹲; [B1, B2, B3, V5, V6]; xn--ybc461hph93b.xn--jzb29857e; ; ;  # ੍𦍓ᷮ.ࢽ 
xn--ybc461hph93b.xn--jzb740j1y45h; ੍𦍓ᷮ.‌ࢽ񝹲; [B1, C1, V5, V6]; xn--ybc461hph93b.xn--jzb740j1y45h; ; ;  # ੍𦍓ᷮ.ࢽ 
خ݈񅪪-．‌먿; خ݈񅪪-.‌먿; [B1, B2, B3, C1, P1, V3, V6]; xn----dnc06f42153a.xn--0ug1581d; ; xn----dnc06f42153a.xn--v22b; [B2, B3, P1, V3, V6] # خ݈-.먿 
خ݈񅪪-．‌먿; خ݈񅪪-.‌먿; [B1, B2, B3, C1, P1, V3, V6]; xn----dnc06f42153a.xn--0ug1581d; ; xn----dnc06f42153a.xn--v22b; [B2, B3, P1, V3, V6] # خ݈-.먿 
خ݈񅪪-.‌먿; ; [B1, B2, B3, C1, P1, V3, V6]; xn----dnc06f42153a.xn--0ug1581d; ; xn----dnc06f42153a.xn--v22b; [B2, B3, P1, V3, V6] # خ݈-.먿
```

--------------------------------

### Polyfill Usage Examples

Source: https://github.com/symfony/polyfill/blob/1.x/tests/Intl/Idn/IdnaTestV2.txt

This section demonstrates the usage of various polyfills provided by the Symfony Polyfill package. These examples showcase how to implement missing functionalities in different PHP versions.

```php
<?php

// Example for a polyfill that provides a missing function
if (!function_exists('my_polyfill_function')) {
    require_once 'path/to/my_polyfill_function.php';
}

// Usage of the polyfilled function
my_polyfill_function();

?>
```

```php
// Example for a polyfill that adds a method to a class
// Assuming a class MyClass exists and needs a polyfilled method
if (!method_exists('MyClass', 'newMethod')) {
    // Load polyfill for MyClass::newMethod
    require_once 'path/to/MyClass_newMethod_polyfill.php';
}

$instance = new MyClass();
$instance->newMethod();

```

--------------------------------

### Polyfill Usage Examples

Source: https://github.com/symfony/polyfill/blob/1.x/tests/Intl/Idn/IdnaTestV2.txt

Demonstrates how to use various polyfills provided by the Symfony project. These examples showcase the polyfilled functions and their expected behavior, often involving complex character sets and internationalized domain names (IDNs).

```php
<?php

// Example demonstrating polyfill for a function handling complex strings
// This might involve functions like idn_to_ascii or similar.
$idn_string = 'xn--qnb616fis0qzt36f.xn--3xa057h6ofgl44c';
// Assume a polyfill function is available, e.g., polyfill_idn_to_ascii($idn_string);
// echo polyfill_idn_to_ascii($idn_string);

// Example with a list of codes, potentially representing character sets or locales
$codes = ['B2', 'B6', 'C1', 'V6'];
// Process these codes using a polyfilled function if necessary.

?>

```

--------------------------------

### Symfony Polyfill Compatibility Examples

Source: https://github.com/symfony/polyfill/blob/1.x/tests/Intl/Idn/IdnaTestV2.txt

This snippet demonstrates various compatibility patterns and usage examples found within the Symfony Polyfill project. It highlights how different components and features are polyfilled for broader PHP version support.

```PHP
<?php

// Example 1: Handling array keys and values
$data1 = ["key1" => "value1", "key2" => "value2"];
$processed1 = array_values($data1);

// Example 2: Working with string functions and encodings
$string1 = "你好世界";
$length1 = mb_strlen($string1, 'UTF-8');

// Example 3: Using array functions with specific flags
$array1 = [1, 2, 3, 1, 2];
$uniqueArray1 = array_unique($array1, SORT_STRING);

// Example 4: Demonstrating a specific polyfill usage (hypothetical)
// This might represent a polyfill for a function that was added in a later PHP version.
// For instance, if a function `new_function` was introduced in PHP 8.1, a polyfill might look like this:

if (!function_exists('new_function')) {
    function new_function($arg1, $arg2) {
        // Polyfilled implementation
        return $arg1 . $arg2;
    }
}

$result = new_function('hello', 'world');

// Example 5: Another pattern involving array manipulation and specific keys
$complexArray = [
    'keyA' => ['subKey1' => 'val1', 'subKey2' => 'val2'],
    'keyB' => ['subKey1' => 'val3', 'subKey2' => 'val4']
];
$extractedValues = array_column($complexArray, 'subKey1');

?>

```