array_key_exists

နမူနာ

ဥပမာ 1

"Volvo" သော့ချက်အမည်ရှိ "Volvo" တည်ရှိမလားစစ်ဆေးပါ။

 <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 keyword">array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Volvo"</span> <span class="token operator">=>></span> <span class="token string double-quoted-string">"XC90"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"BMW"</span> <span class="token operator">=>></span> <span class="token string double-quoted-string">"X5"</span> <span class="token punctuation">)</span> <span class="token punctuation">။</span>
<span class="token keyword">(</span><span class="token punctuation">​</span><span class="token function"></span></span><mark> <span class="token function">array_key_exists</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Volvo"</span> <span class="token punctuation">,</span> <span class="token variable">$ a</span> <span class="token punctuation">)</span></mark><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">"သော့ရှိတယ်!"</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token keyword">သို့မဟုတ်</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">ECHO</span> <span class="token string double-quoted-string">"သော့မတည်ရှိပါ။ "</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token delimiter important">></span>

သင်ကိုယ်တိုင်စမ်းကြည့်ပါ

ဥပမာ 2

"Toyota" ဟူသောအဓိကအမည်မှာ "Toyota" တွင်တည်ရှိခြင်းရှိမရှိစစ်ဆေးပါ။

 <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 keyword">array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Volvo"</span> <span class="token operator">=>></span> <span class="token string double-quoted-string">"XC90"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"BMW"</span> <span class="token operator">=>></span> <span class="token string double-quoted-string">"X5"</span> <span class="token punctuation">)</span> <span class="token punctuation">။</span>
<span class="token keyword">(</span><span class="token punctuation">​</span><span class="token function"></span></span><mark> <span class="token function">key_exists</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Toyota"</span> <span class="token punctuation">,</span> <span class="token variable">$ a</span> <span class="token punctuation">)</span></mark><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">"သော့ရှိတယ်!"</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token keyword">သို့မဟုတ်</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">ECHO</span> <span class="token string double-quoted-string">"သော့မတည်ရှိပါ။ "</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token delimiter important">></span>

သင်ကိုယ်တိုင်စမ်းကြည့်ပါ

ဥပမာ 3

Integer key name "0" သည်ခင်းကျင်းမှုတွင်တည်ရှိခြင်းရှိမရှိစစ်ဆေးပါ။

 <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 keyword">Array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Volvo"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"BMW"</span> <span class="token punctuation">)</span> <span class="token punctuation">,</span>
<span class="token keyword">(</span><span class="token punctuation">​</span><span class="token function"></span></span><mark> <span class="token function">array_key_exists</span> <span class="token punctuation">(</span> <span class="token number">0</span> <span class="token punctuation">,</span> <span class="token variable">$ က</span> <span class="token punctuation">)</span></mark><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">"သော့ရှိတယ်!"</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token keyword">သို့မဟုတ်</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">ECHO</span> <span class="token string double-quoted-string">"သော့မတည်ရှိပါ။ "</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token delimiter important">></span>

သင်ကိုယ်တိုင်စမ်းကြည့်ပါ