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substr

문자열의 일부를 반환하십시오
이름:substr
분류:
사용 언어:php
한 줄 설명:문자열의 일부를 반환합니다.

예 1

문자열에서 "World"를 반환합니다.

 <span class="token php language-php"><span class="token delimiter important"><? php</span>
<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hello World"</span> <span class="token punctuation">,</span> <span class="token number">6</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

직접 시도하십시오

예 2

양수와 음수가 다른 시작 매개 변수를 사용하십시오.

 <span class="token php language-php"><span class="token delimiter important"><? php</span>
<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hello World"</span> <span class="token punctuation">,</span> <span class="token number">10</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hello World"</span> <span class="token punctuation">,</span> <span class="token number">1</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hello World"</span> <span class="token punctuation">,</span> <span class="token number">3</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hello World"</span> <span class="token punctuation">,</span> <span class="token number">7</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>

<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> "Hello <span class="token operator">World</span> <span class="token string double-quoted-string">"</span> <span class="token punctuation">,</span> <span class="token operator">-1</span> <span class="token punctuation">)</span> <span class="token number">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> "Hello <span class="token operator">World</span> <span class="token string double-quoted-string">"</span> <span class="token punctuation">,</span> <span class="token operator">-10</span> <span class="token punctuation">)</span> <span class="token number">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> " <span class="token punctuation">Hello</span> <span class="token string double-quoted-string">World"</span> <span class="token punctuation">,</span> <span class="token operator">-8</span> <span class="token number">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> <span class="token punctuation">"</span> <span class="token string double-quoted-string">Hello World"</span> <span class="token punctuation">,</span> <span class="token operator">-4</span> <span class="token number">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

직접 시도하십시오

예 3

양수 및 음수가 다른 시작길이 매개 변수를 사용하십시오.

 <span class="token php language-php"><span class="token delimiter important"><? php</span>
<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hello World"</span> <span class="token punctuation">,</span> <span class="token number">0</span> <span class="token punctuation">,</span> <span class="token number">10</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hello World"</span> <span class="token punctuation">,</span> <span class="token number">1</span> <span class="token punctuation">,</span> <span class="token number">8</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hello World"</span> <span class="token punctuation">,</span> <span class="token number">0</span> <span class="token punctuation">,</span> <span class="token number">5</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hello World"</span> <span class="token punctuation">,</span> <span class="token number">6</span> <span class="token punctuation">,</span> <span class="token number">6</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>

<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> " <span class="token operator">Hello</span> <span class="token string double-quoted-string">World"</span> <span class="token punctuation">,</span> <span class="token number">0</span> <span class="token punctuation">,</span> <span class="token operator">-1</span> <span class="token punctuation">)</span> <span class="token number">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> <span class="token punctuation">"</span> <span class="token operator">Hello</span> <span class="token string double-quoted-string">World"</span> <span class="token punctuation">,</span> <span class="token operator">-10</span> <span class="token punctuation">,</span> <span class="token operator">-2</span> <span class="token number">)</span> <span class="token number">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> " <span class="token operator">Hello</span> <span class="token string double-quoted-string">World"</span> <span class="token punctuation">,</span> <span class="token number">0</span> <span class="token punctuation">,</span> <span class="token operator">-6</span> <span class="token punctuation">)</span> <span class="token number">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token function">substr</span> <span class="token punctuation">(</span> <span class="token number">"</span> <span class="token punctuation">Hello</span> <span class="token operator">World</span> <span class="token string double-quoted-string">"</span> <span class="token punctuation">,</span> <span class="token operator">-2-3</span> <span class="token operator">)</span> <span class="token number">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

직접 시도하십시오

유사한 함수
  • 문자열에 주어진 서브 스트링이 포함되어 있는지 여부를 결정합니다 str_contains

    str_contains

    문자열에주어진서브스트링이포함되어있는지
  • RTRIM의 별칭 chop

    chop

    RTRIM의별칭
  • 문자열의 첫 번째 문자를 소문자로 설정하십시오 lcfirst

    lcfirst

    문자열의첫번째문자를소문자로설정하십시오
  • 문자열 길이를 얻으십시오 strlen

    strlen

    문자열길이를얻으십시오
  • 문자열의 일부를 반환하십시오 substr

    substr

    문자열의일부를반환하십시오
  • 통화 문자열로 숫자를 형식화합니다 money_format

    money_format

    통화문자열로숫자를형식화합니다
  • addcslashes ()를 사용하여 탈출 한 문자열이 반영됩니다. stripcslashes

    stripcslashes

    addcslashes()를사용하여탈출
  • 특수 HTML 엔티티를 일반 문자로 다시 변환하십시오 htmlspecialchars_decode

    htmlspecialchars_decode

    특수HTML엔티티를일반문자로다시변환하