substr

이름:substr

분류:끈

사용 언어:php

한 줄 설명:문자열의 일부를 반환합니다.

예

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 시작 및 길이 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