strval
获取变量的字符串值
返回不同变量的字符串值:
<span class="token php language-php"><span class="token delimiter important"><?php</span> <span class="token variable">$a</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"Hello"</span><span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token function">strval</span><span class="token punctuation">(</span><span class="token variable">$a</span><span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span><span class="token punctuation">;</span> <span class="token variable">$b</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"1234.56789"</span><span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token function">strval</span><span class="token punctuation">(</span><span class="token variable">$b</span><span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span><span class="token punctuation">;</span> <span class="token variable">$c</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"1234.56789Hello"</span><span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token function">strval</span><span class="token punctuation">(</span><span class="token variable">$c</span><span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span><span class="token punctuation">;</span> <span class="token variable">$d</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"Hello1234.56789"</span><span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token function">strval</span><span class="token punctuation">(</span><span class="token variable">$d</span><span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span><span class="token punctuation">;</span> <span class="token variable">$e</span> <span class="token operator">=</span> <span class="token number">1234</span><span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token function">strval</span><span class="token punctuation">(</span><span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span><span class="token punctuation">;</span> <span class="token delimiter important">?></span></span>