현재 위치: > 함수 카테고리 모음> boolval

boolval

변수의 부울 값을 얻으십시오
이름:boolval
분류:가변 처리
사용 언어:php
한 줄 설명:변수의 부울 값을 반환합니다.

다른 변수에 대한 부울 값을 반환합니다.

 <span class="token php language-php"><span class="token delimiter important"><? php</span>
<span class="token keyword">에코</span> <span class="token string double-quoted-string">"0 :"</span> <span class="token operator">.</span> <span class="token punctuation">(</span> <span class="token function">Boolval</span> <span class="token punctuation">(</span> <span class="token number">0</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">&#39;true&#39;</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">&#39;false&#39;</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">에코</span> <span class="token string double-quoted-string">"4 :"</span> <span class="token operator">.</span> <span class="token punctuation">(</span> <span class="token function">Boolval</span> <span class="token punctuation">(</span> <span class="token number">42</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">&#39;true&#39;</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">&#39;false&#39;</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 string single-quoted-string">&#39; "":&#39;</span> <span class="token operator">.</span> <span class="token punctuation">(</span> <span class="token function">boolval</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">""</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">&#39;true&#39;</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">&#39;false&#39;</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 string single-quoted-string">&#39; "hello":&#39;</span> <span class="token operator">.</span> <span class="token punctuation">(</span> <span class="token function">boolval</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"hello"</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">&#39;true&#39;</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">&#39;false&#39;</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 string single-quoted-string">&#39; "0":&#39;</span> <span class="token operator">.</span> <span class="token punctuation">(</span> <span class="token function">boolval</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"0"</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">&#39;true&#39;</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">&#39;false&#39;</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">에코</span> <span class="token string double-quoted-string">"[3, 5] :"</span> <span class="token operator">.</span> <span class="token punctuation">(</span> <span class="token function">boolval</span> <span class="token punctuation">(</span> <span class="token punctuation">[</span> <span class="token number">3</span> <span class="token punctuation">,</span> <span class="token number">5</span> <span class="token punctuation">]</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">&#39;true&#39;</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">&#39;false&#39;</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 string double-quoted-string">"[] :"</span> <span class="token operator">.</span> <span class="token punctuation">(</span> <span class="token function">boolval</span> <span class="token punctuation">(</span> <span class="token punctuation">[</span> <span class="token punctuation">]</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">&#39;true&#39;</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">&#39;false&#39;</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

유사한 함수
  • 변수 유형을 설정하십시오 settype

    settype

    변수유형을설정하십시오
  • 변수 관련 정보를 인쇄하십시오 var_dump

    var_dump

    변수관련정보를인쇄하십시오
  • 이해하기 쉬운 형식으로 변수를 인쇄합니다 print_r

    print_r

    이해하기쉬운형식으로변수를인쇄합니다
  • IS_INT 별칭 is_long

    is_long

    IS_INT별칭
  • 변수의 내용이 반복 가능한 값인지 확인 is_iterable

    is_iterable

    변수의내용이반복가능한값인지확인
  • 변수의 부동 소수점 값을 얻으십시오 floatval

    floatval

    변수의부동소수점값을얻으십시오
  • 변수의 문자열 값을 얻으십시오 strval

    strval

    변수의문자열값을얻으십시오
  • 변수가 문자열인지 여부를 감지하십시오 is_string

    is_string

    변수가문자열인지여부를감지하십시오
인기 기사