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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-looping-while PHP Looping While Programming_Language draft conceptual
while loop
endwhile
PHP while 반복문
B 0.9 2026-07-04 2026-07-04
php
programming
w3schools
loops
while
https://www.w3schools.com/php/php_looping_while.asp

PHP Looping While

🎯 한 줄 통찰 (One-line insight)

PHP's while loop supports an alternative colon-based syntax (while ($i < 6): ... endwhile;) purely for template/HTML-embedding contexts — functionally identical to the brace syntax, but this "alt syntax" pattern (also seen in if/foreach) exists specifically because it reads more cleanly when PHP is interleaved with HTML markup. [S1]

🧠 핵심 개념 (Core concepts)

  • while (condition) { ... } — condition checked BEFORE each iteration; false-from-start means zero executions. [S1]
  • break — exits the loop early even if the condition is still true. [S1]
  • continue — skips the rest of the current iteration, proceeds to the next condition check. [S1]
  • Alternative syntaxwhile (condition): ... endwhile; — same behavior, colon-based. [S1]
  • Custom step size — incrementing by more than 1 per iteration (e.g. $i += 10). [S1]

📖 세부 내용 (Details)

  • Basic loop: $i = 1; while ($i < 6) { echo $i; $i++; }. [S1]
  • Break: $i = 1; while ($i < 6) { if ($i == 3) break; echo $i; $i++; }. [S1]
  • Continue: $i = 0; while ($i < 6) { $i++; if ($i == 3) continue; echo $i; }. [S1]
  • Alt syntax: $i = 1; while ($i < 6): echo $i; $i++; endwhile;. [S1]
  • Step-10 counting: $i = 0; while ($i < 100) { $i += 10; echo $i . "<br>"; }. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

소스에서 모순되는 정보는 발견되지 않음.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — 카운터를 10씩 증가시켜 100까지 세는 예제가 스텝 크기 조정의 대표 패턴이다. [S1]

💻 코드 패턴 (Code patterns)

While loop with alternative colon syntax (PHP):

$i = 1;
while ($i < 6):
    echo $i;
    $i++;
endwhile;

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)

📚 출처 (Sources)

📝 변경 이력 (Change history)

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