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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
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    하나이상의문자열을출력합니다
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    문자를변환하거나하위문자를바꾸십시오-지
  • 문자열에서 ROT13 변환을 수행하십시오 str_rot13

    str_rot13

    문자열에서ROT13변환을수행하십시오
  • 출력 형식 문자열 vprintf

    vprintf

    출력형식문자열
  • 편도 문자열 해시 crypt

    crypt

    편도문자열해시
  • 이진 안전 문자열 비교 strcmp

    strcmp

    이진안전문자열비교
  • CRC32 다항식 문자열을 계산하십시오 crc32

    crc32

    CRC32다항식문자열을계산하십시오
  • 주어진 파일의 MD5 해시 값을 계산하십시오 md5_file

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    주어진파일의MD5해시값을계산하십시오