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-mysql-insert
+title: "PHP MySQL Insert"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["INSERT INTO", "PHP MySQL 데이터 삽입"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.9
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: ""
+merge_history: []
+tags: ["php", "programming", "w3schools", "mysql", "insert"]
+raw_sources: ["https://www.w3schools.com/php/php_mysql_insert.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[PHP MySQL Insert]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+AUTO_INCREMENT and default-timestamp columns must be OMITTED from the INSERT statement entirely — the `id` and `reg_date` columns aren't listed in `INSERT INTO MyGuests (firstname, lastname, email)` at all, since MySQL fills them in automatically; explicitly specifying them would defeat their automatic behavior. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **`INSERT INTO table (columns) VALUES (values)`** — adds a new record. [S1]
+- **Quoting rules** — the whole SQL query is quoted in PHP; string values inside are quoted; numeric values are NOT quoted; `NULL` is never quoted. [S1]
+- **AUTO_INCREMENT/default-timestamp columns are omitted** — `id` and `reg_date` don't appear in the column list at all; MySQL fills them automatically. [S1]
+
+## 📖 세부 내용 (Details)
+- Insert statement omitting auto-managed columns: `$sql = "INSERT INTO MyGuests (firstname, lastname, email) VALUES ('John', 'Doe', 'john@example.com')";`. [S1]
+- MySQLi OOP execution: `if ($conn->query($sql) === TRUE) { echo "New record created successfully"; } else { echo "Error: " . $sql . "<br>" . $conn->error; }`. [S1]
+- PDO execution: `$conn->exec($sql); echo "New record created successfully";` wrapped in try/catch(PDOException). [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+- **자동 관리 컬럼 생략 규칙**: AUTO_INCREMENT나 기본 타임스탬프를 가진 컬럼은 INSERT 문에 명시하지 않아야 MySQL이 자동으로 값을 채운다는 점이 강조됨. [S1]
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — MyGuests 테이블에 이름/이메일만 삽입하고 id/reg_date는 자동 처리되는 것이 실전 삽입 패턴이다. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+Inserting a record while omitting auto-managed columns (PHP):
+```php
+$sql = "INSERT INTO MyGuests (firstname, lastname, email)
+        VALUES ('John', 'Doe', 'john@example.com')"; // id, reg_date auto-filled
+if ($conn->query($sql) === TRUE) {
+    echo "New record created successfully";
+}
+```
+
+## ✅ 검증 상태 및 신뢰도
+- **상태:** draft
+- **검증 단계:** conceptual
+- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
+- **신뢰 점수:** 0.90
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[PHP Tutorial]]
+- **관련 개념:** [[PHP MySQL Create Table]], [[PHP MySQL Insert Last ID]], [[PHP MySQL Insert Multiple]]
+- **참조 맥락:** 데이터 삽입 기초 — 마지막 삽입 ID 조회(Insert Last ID) 챕터로 이어짐.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — PHP MySQL Insert Data — https://www.w3schools.com/php/php_mysql_insert.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "PHP MySQL Insert Data" page (Astra wiki-curation, P-Reinforce v3.1 format).