gettype

예

다른 변수의 유형을 반환합니다.

 <span class="token php language-php"><span class="token delimiter important"><? php</span>
<span class="token variable">$ a</span> <span class="token operator">=</span> <span class="token number">3</span> <span class="token punctuation">;</span>
<span class="token keyword">에코</span> <span class="token function">게티페</span> <span class="token punctuation">(</span> <span class="token variable">$ a</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 variable">$ b</span> <span class="token operator">=</span> <span class="token number">3.2</span> <span class="token punctuation">;</span>
<span class="token keyword">에코</span> <span class="token function">게티페</span> <span class="token punctuation">(</span> <span class="token variable">$ B</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 variable">$ c</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"안녕하세요"</span> <span class="token punctuation">;</span>
<span class="token keyword">에코</span> <span class="token function">게티페</span> <span class="token punctuation">(</span> <span class="token variable">$ C</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 variable">$ d</span> <span class="token operator">=</span> <span class="token keyword">array</span> <span class="token punctuation">(</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">에코</span> <span class="token function">게티페</span> <span class="token punctuation">(</span> <span class="token variable">$ D</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 variable">$ e</span> <span class="token operator">=</span> <span class="token keyword">배열</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"빨간색"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"녹색"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"파란색"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">에코</span> <span class="token function">게티페</span> <span class="token punctuation">(</span> <span class="token variable">$ E</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 variable">$ f</span> <span class="token operator">=</span> <span class="token constant">null</span> <span class="token punctuation">;</span>
<span class="token keyword">에코</span> <span class="token function">게티페</span> <span class="token punctuation">(</span> <span class="token variable">$ F</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 variable">$ g</span> <span class="token operator">=</span> <span class="token constant boolean">거짓</span> <span class="token punctuation">;</span>
<span class="token keyword">에코</span> <span class="token function">게티페</span> <span class="token punctuation">(</span> <span class="token variable">$ G</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 delimiter important">?></span></span>

직접 시도하십시오

예제 설명 :

gettype() 함수는 다양한 유형의 변수 (적분, 부동 소수점, 문자열, 배열, null 및 부울)를 확인하고 유형을 반환하는 데 사용됩니다. 예를 들어, 정수 변수 $a 의 경우 gettype($a) 문자열 "integer" 를 반환합니다. 부동 소수점 변수 $b 의 경우 "double" 을 반환하고 문자열 변수 $c 의 경우 "string" 등을 반환합니다. 변수가 폐쇄 자원 인 경우 PHP 7.2 이상에서 gettype() "resource (closed)" 반환하고 이전 버전에서는 "unknown type" 반환 할 수 있습니다.