---
id: php-comments-multiline
title: "PHP Comments Multiline"
category: "Programming_Language"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["PHP 여러 줄 주석"]
duplicate_of: ""
source_trust_level: "B"
confidence_score: 0.87
created_at: 2026-07-04
updated_at: 2026-07-04
review_reason: ""
merge_history: []
tags: ["php", "programming", "w3schools", "comments"]
raw_sources: ["https://www.w3schools.com/php/php_comments_multiline.asp"]
applied_in: []
github_commit: ""
---

# [[PHP Comments Multiline]]

## 🎯 한 줄 통찰 (One-line insight)
Multi-line comment syntax (`/* ... */`) can be embedded MID-STATEMENT, not just around whole lines — `$x = 5 /* + 15 */ + 5;` shows the comment silently removing a piece of an expression, letting you selectively "comment out" a sub-part of a calculation without touching the rest of the line. [S1]

## 🧠 핵심 개념 (Core concepts)
- **`/* ... */`** — multi-line comment; all text between the delimiters is ignored. [S1]
- **Block-disabling** — wrapping multiple lines of code in `/* */` disables the entire block at once. [S1]
- **Mid-expression use** — the same syntax can remove just a fragment of a single line/expression. [S1]

## 📖 세부 내용 (Details)
- Explanatory comment: `/* The next statement will print a welcome message */ echo 'Welcome Home!';`. [S1]
- Disabling a code block: `/* echo 'Welcome to my home!'; echo 'Mi casa su casa!'; */ echo 'Hello!';` — only "Hello!" prints. [S1]
- Mid-line fragment removal: `$x = 5 /* + 15 */ + 5; echo $x; // 10, not 25`. [S1]

## ⚖️ 모순 및 업데이트 (Contradictions & updates)
소스에서 모순되는 정보는 발견되지 않음.

## 🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — 계산식 일부를 임시로 제외하고 테스트하는 것이 실전에서 자주 쓰이는 디버깅 기법이다. [S1]

## 💻 코드 패턴 (Code patterns)
Mid-expression comment removing part of a calculation (PHP):
```php
$x = 5 /* + 15 */ + 5;
echo $x; // 10
```

## ✅ 검증 상태 및 신뢰도
- **상태:** draft
- **검증 단계:** conceptual
- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
- **신뢰 점수:** 0.87
- **중복 검사 결과:** 신규 생성 (New discovery)

## 🔗 지식 그래프 (Knowledge Graph)
- **상위/루트:** [[PHP Tutorial]]
- **관련 개념:** [[PHP Comments]], [[PHP Variables]]
- **참조 맥락:** 여러 줄 주석 — 변수(Variables) 챕터로 이어짐.

## 📚 출처 (Sources)
- [S1] W3Schools — PHP Multi-line Comments — https://www.w3schools.com/php/php_comments_multiline.asp

## 📝 변경 이력 (Change history)
- 2026-07-04: Initial draft synthesized from the W3Schools "PHP Multi-line Comments" page (Astra wiki-curation, P-Reinforce v3.1 format).
