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print

輸出一個字符串
名稱:print
分類:字符串
所屬語言:php
一句話介紹:輸出一個或多個字符串。

實例

例子1

向輸出寫入文本:

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">print</span> <span class="token string double-quoted-string">"I love Shanghai!"</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

親自試一試

例子2

輸出字符串變量($str)的值:

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$str</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"I love Shanghai!"</span> <span class="token punctuation">;</span>
<span class="token keyword">print</span> <span class="token variable">$str</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

親自試一試

例子3

輸出字符串變量($str)的值,包含HTML 標籤:

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$str</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"I love Shanghai!"</span> <span class="token punctuation">;</span>
<span class="token keyword">print</span> <span class="token variable">$str</span> <span class="token punctuation">;</span>
<span class="token keyword">print</span> <span class="token string double-quoted-string">"<br>What a nice day!"</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

親自試一試

例子4

連接兩個字符串變量:

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$str1</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"I love Shanghai!"</span> <span class="token punctuation">;</span>
<span class="token variable">$str2</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"What a nice day!"</span> <span class="token punctuation">;</span>
<span class="token keyword">print</span> <span class="token variable">$str1</span> <span class="token operator">.</span> <span class="token string double-quoted-string">" "</span> <span class="token operator">.</span> <span class="token variable">$str2</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span> 

親自試一試

例子5

輸出數組的值:

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$age</span> <span class="token operator">=</span> <span class="token keyword">array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Bill"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"60"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">print</span> <span class="token string double-quoted-string">"Bill Gates is "</span> <span class="token operator">.</span> <span class="token variable">$age</span> <span class="token punctuation">[</span> <span class="token string single-quoted-string">&#39;Bill&#39;</span> <span class="token punctuation">]</span> <span class="token operator">.</span> <span class="token string double-quoted-string">" years old."</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

親自試一試

例子6

輸出文本:

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">print</span> <span class="token string double-quoted-string">"This text
spans multiple
lines."</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span> 

親自試一試

例子7

單引號和雙引號的區別。單引號將輸出變量名稱,而不是值:

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$color</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"red"</span> <span class="token punctuation">;</span>
<span class="token keyword">print</span> <span class="token string double-quoted-string">"Roses are <span class="token interpolation"><span class="token variable">$color</span></span> "</span> <span class="token punctuation">;</span>
<span class="token keyword">print</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">print</span> <span class="token string single-quoted-string">&#39;Roses are $color&#39;</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

親自試一試

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