extract

Beispiel

Beispiel 1

Weisen Sie Variablen $ A, $ B und $ c wichtige Werte "Katze", "Hund" und "Pferd" zu:

 <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 string double-quoted-string">"original"</span> <span class="token punctuation">;</span>
<span class="token variable">$ my_array</span> <span class="token operator">=</span> <span class="token keyword">array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"a"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"kat"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"b"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"hunde"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"c"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"Pferd"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token function"></span></span><mark><span class="token function">Extrakt</span> <span class="token punctuation">(</span> <span class="token variable">$ my_array</span> <span class="token punctuation">)</span></mark><span class="token punctuation"></span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token string double-quoted-string">"\ $ a = <span class="token interpolation"><span class="token variable">$ a</span></span> ; \ $ b = <span class="token interpolation"><span class="token variable">$ b</span></span> ; \ $ c = <span class="token interpolation"><span class="token variable">$ c</span></span> "</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span>

Probieren Sie es selbst aus

Beispiel 2

Verwenden Sie alle Parameter:

 <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 string double-quoted-string">"original"</span> <span class="token punctuation">;</span>
<span class="token variable">$ my_array</span> <span class="token operator">=</span> <span class="token keyword">array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"a"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"kat"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"b"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"hunde"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"c"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"Pferd"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>

<span class="token function"></span></span><mark><span class="token function">extract</span> <span class="token punctuation">(</span> <span class="token variable">$ my_array</span> <span class="token punctuation">,</span> <span class="token constant">extr_prefix_Same</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"DUP"</span> <span class="token punctuation">)</span></mark><span class="token punctuation"></span> <span class="token punctuation">;</span>

<span class="token keyword">echo</span> <span class="token string double-quoted-string">"\ $ a = <span class="token interpolation"><span class="token variable">$ a</span></span> ; \ $ b = <span class="token interpolation"><span class="token variable">$ b</span></span> ; \ $ c = <span class="token interpolation"><span class="token variable">$ c</span></span> ; \ $ dUp_a = <span class="token interpolation"><span class="token variable">$ dUp_a</span></span> "</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span>

Probieren Sie es selbst aus