2nd/10_Wiki/Dev/Topic_PHP/PHP_OOP_Destructor.md

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id	title	category	status	verification_status	canonical_id	aliases	duplicate_of	source_trust_level	confidence_score	created_at	updated_at	review_reason	merge_history	tags	raw_sources	applied_in	github_commit
php-oop-destructor	PHP OOP Destructor	Programming_Language	draft	conceptual		__destruct() PHP 소멸자		B	0.88	2026-07-04	2026-07-04			php programming w3schools oop destructor	https://www.w3schools.com/php/php_oop_destructor.asp

PHP OOP Destructor

🎯 한 줄 통찰 (One-line insight)

__destruct() runs automatically at the END of script execution (or when an object is explicitly destroyed) with NO explicit call needed — it's the structural mirror of __construct(), firing on the opposite lifecycle event (teardown vs. setup) rather than being invoked by user code. [S1]

🧠 핵심 개념 (Core concepts)

• __destruct() — automatically called when an object is destroyed OR when the script finishes execution. [S1]
• Opposite of __construct() — fires at teardown instead of creation. [S1]
• No arguments — unlike the constructor, __destruct() takes no parameters. [S1]

📖 세부 내용 (Details)

• Constructor + destructor pair: class Fruit { public $name; public $color; function __construct($name, $color) { $this->name = $name; $this->color = $color; } function __destruct() { echo "Name: " . $this->name . ". Color: " . $this->color .".<br>"; } } $apple = new Fruit('Apple', 'Red'); $banana = new Fruit('Banana', 'Yellow'); — the destructor for each object fires automatically at script end, printing both fruits' details even though __destruct() was never explicitly called. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

소스에서 모순되는 정보는 발견되지 않음.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — 생성자/소멸자 쌍이 코드 양을 줄이는 데 유용하다는 점이 팁으로 강조된다. [S1]

💻 코드 패턴 (Code patterns)

Destructor firing automatically at script end (PHP):

class Fruit {
    public $name;
    public $color;
    function __construct($name, $color) {
        $this->name = $name;
        $this->color = $color;
    }
    function __destruct() {
        echo "Name: " . $this->name . ". Color: " . $this->color .".<br>";
    }
}
$apple = new Fruit('Apple', 'Red'); // __destruct() runs automatically at script end

✅ 검증 상태 및 신뢰도

• 상태: draft
• 검증 단계: conceptual
• 출처 신뢰도: B (W3Schools — widely used educational reference, not a primary standards body)
• 신뢰 점수: 0.88
• 중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

• 상위/루트: PHP Tutorial
• 관련 개념: PHP OOP Constructor, PHP OOP Access Modifiers
• 참조 맥락: 생성자의 반대 개념(소멸) — 접근 제어자(Access Modifiers) 챕터로 이어짐.

📚 출처 (Sources)

• [S1] W3Schools — PHP OOP - Destructor Method — https://www.w3schools.com/php/php_oop_destructor.asp

📝 변경 이력 (Change history)

• 2026-07-04: Initial draft synthesized from the W3Schools "PHP OOP Destructor Method" page (Astra wiki-curation, P-Reinforce v3.1 format).