is_callable
매개 변수가 합법적 인 호출 가능한 구조인지 여부를 감지합니다
한국어
한국어
변수의 내용을 함수로 호출 할 수 있는지 확인하십시오.
<span class="token php language-php"><span class="token delimiter important"><? php</span>
<span class="token keyword">함수</span> <span class="token function-definition function">test1</span> <span class="token punctuation">(</span> <span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token punctuation">}</span>
<span class="token keyword">echo</span> <span class="token string double-quoted-string">"test1은 호출 가능하다 :"</span> <span class="token operator">.</span> <span class="token function">is_callable</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"test1"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">에코</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">"test2는 호출 가능하다 :"</span> <span class="token operator">.</span> <span class="token function">is_callable</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"test2"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>
is_scalar
is_countable
is_float
doubleval
is_object
var_export
is_array
unset
