docs(10_Wiki): 위키 구조 정리 — 언어 튜토리얼 카테고리 폴더 제거 + 신규 자산 동기화

Topic_CSS/Topic_HTML/Topic_JavaScript/Topic_Prompt/Topic_Comfyui 등 기존 카테고리 폴더를 정리하고, Topic_Graphic/Dev 등 신규 산출물과 Topics 내부 세션/메모리 기록을 동기화.
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+---
+id: php-arrays-access
+title: "PHP Arrays Access"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["PHP 배열 접근"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.88
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: ""
+merge_history: []
+tags: ["php", "programming", "w3schools", "arrays", "access"]
+raw_sources: ["https://www.w3schools.com/php/php_arrays_access.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[PHP Arrays Access]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+An array item can hold a function NAME as a string, and calling `$myArr[2]()` actually invokes that named function — this dynamic-call pattern (storing a callable's name and invoking it via array access + parentheses) is a lightweight precursor to PHP's full callback-function mechanism covered later. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **Access by index (indexed array)** — `$cars[2]`. [S1]
+- **Access by key (associative array)** — `$cars["year"]`. [S1]
+- **Double or single quotes** — both work identically for key access: `$cars["model"]` / `$cars['model']`. [S1]
+- **Executing a function stored as an array item** — `$myArr[2]();` calls the function whose name is stored at that index. [S1]
+- **`foreach`** — standard iteration for both indexed and associative arrays. [S1]
+
+## 📖 세부 내용 (Details)
+- Indexed access: `$cars = array("Volvo", "BMW", "Toyota"); echo $cars[2]; // "Toyota"`. [S1]
+- Associative access: `$cars = array("brand" => "Ford", "model" => "Mustang", "year" => 1964); echo $cars["year"];`. [S1]
+- Function-name-as-array-item, invoked: `function myFunction() { echo "I come from a function!"; } $myArr = array("Volvo", 15, "myFunction"); $myArr[2]();`. [S1]
+- Same pattern via associative key: `$myArr = array("car" => "Volvo", "age" => 15, "message" => "myFunction"); $myArr["message"]();`. [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+소스에서 모순되는 정보는 발견되지 않음.
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — 배열에 저장된 함수 이름을 인덱스로 호출하는 패턴이 콜백 함수(Callback Functions) 챕터로 이어지는 예고편이다. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+Invoking a function whose name is stored as an array item (PHP):
+```php
+function myFunction() {
+    echo "I come from a function!";
+}
+$myArr = array("Volvo", 15, "myFunction");
+$myArr[2](); // calls myFunction()
+```
+
+## ✅ 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 Arrays Create]], [[PHP Arrays Update]], [[PHP Callback Functions]]
+- **참조 맥락:** 배열 항목 접근 및 함수 실행 — 배열 수정(Update) 챕터로 이어짐.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — PHP Access Arrays — https://www.w3schools.com/php/php_arrays_access.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "PHP Access Arrays" page (Astra wiki-curation, P-Reinforce v3.1 format).