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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
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-string-escape PHP String Escape Programming_Language draft conceptual
escape characters
PHP 이스케이프 문자
B 0.88 2026-07-04 2026-07-04
php
programming
w3schools
strings
escape
https://www.w3schools.com/php/php_string_escape.asp

PHP String Escape

🎯 한 줄 통찰 (One-line insight)

PHP has an escape sequence specifically for the $ sign (\$) — a character other languages rarely need to escape — because $ triggers variable interpolation inside double-quoted strings, so writing a literal dollar sign next to what could be mistaken for a variable name requires this PHP-specific escape. [S1]

🧠 핵심 개념 (Core concepts)

  • Escape character — a backslash \ followed by the character to insert literally. [S1]
  • Why needed — inserting characters that would otherwise be interpreted specially (e.g., a " inside a double-quoted string). [S1]
  • Escape table\' (single quote), \" (double quote), \$ (literal PHP variable sigil), \n (newline), \r (carriage return), \t (tab), \f (form feed), \ooo (octal), \xhh (hex). [S1]

📖 세부 내용 (Details)

  • Problem: $x = "We are the so-called "Vikings" from the north."; // illegal — breaks the string. [S1]
  • Fix: $x = "We are the so-called \"Vikings\" from the north."; echo $x;. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

소스에서 모순되는 정보는 발견되지 않음.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — 큰따옴표 문자열 안에 인용구를 포함해야 할 때 "로 이스케이프하는 것이 표준 패턴이다. [S1]

💻 코드 패턴 (Code patterns)

Escaping double quotes inside a double-quoted string (PHP):

$x = "We are the so-called \"Vikings\" from the north.";
echo $x;

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)

📚 출처 (Sources)

📝 변경 이력 (Change history)

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