print

实例

例子 1

向输出写入文本：

<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>

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例子 2

输出字符串变量（$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>

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例子 3

输出字符串变量（$str）的值，包含 HTML 标签：

<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>

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例子 4

连接两个字符串变量：

<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> 

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例子 5

输出数组的值：

<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">'Bill'</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>

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例子 6

输出文本：

<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> 

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例子 7

单引号和双引号的区别。单引号将输出变量名称，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">'Roses are $color'</span><span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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