uTools-Manuals/docs/php/uopz_get_property.html
2019-04-08 23:22:26 +08:00

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<title>Gets value of class or instance property</title>
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<div id="layout-content"><div id="function.uopz-get-property" class="refentry">
<div class="refnamediv">
<h1 class="refname">uopz_get_property</h1>
<p class="verinfo">(PECL uopz 5)</p><p class="refpurpose"><span class="refname">uopz_get_property</span> &mdash; <span class="dc-title">Gets value of class or instance property</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.uopz-get-property-description">
<h3 class="title">说明</h3>
<div class="methodsynopsis dc-description">
<span class="methodname"><strong>uopz_get_property</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$class</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$property</code></span>
) : <span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span></div>
<div class="methodsynopsis dc-description">
<span class="methodname"><strong>uopz_get_property</strong></span>
( <span class="methodparam"><span class="type">object</span> <code class="parameter">$instance</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$property</code></span>
) : <span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span></div>
<p class="para rdfs-comment">
Gets the value of a static class property, if <code class="parameter">class</code>
is given, or the value of an instance property, if <code class="parameter">instance</code>
is given.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.uopz-get-property-parameters">
<h3 class="title">参数</h3>
<dl>
<dt>
<code class="parameter">class</code></dt>
<dd>
<p class="para">
The name of the class.
</p>
</dd>
<dt>
<code class="parameter">instance</code></dt>
<dd>
<p class="para">
The object instance.
</p>
</dd>
<dt>
<code class="parameter">property</code></dt>
<dd>
<p class="para">
The name of the property.
</p>
</dd>
</dl>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.uopz-get-property-returnvalues">
<h3 class="title">返回值</h3>
<p class="para">
Returns the value of the class or instance property, or <strong><code>NULL</code></strong> if the property
is not defined.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.uopz-get-property-examples">
<h3 class="title">范例</h3>
<div class="example" id="example-576">
<p><strong>Example #1 Basic <span class="function"><strong>uopz_get_property()</strong></span> Usage</strong></p>
<div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #007700">class&nbsp;</span><span style="color: #0000BB">Foo&nbsp;</span><span style="color: #007700">{<br />&nbsp;&nbsp;&nbsp;&nbsp;private&nbsp;static&nbsp;</span><span style="color: #0000BB">$staticBar&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">10</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;private&nbsp;</span><span style="color: #0000BB">$bar&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">100</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">$foo&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">Foo</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">uopz_get_property</span><span style="color: #007700">(</span><span style="color: #DD0000">'Foo'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'staticBar'</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">uopz_get_property</span><span style="color: #007700">(</span><span style="color: #0000BB">$foo</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'bar'</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
</div>
<div class="example-contents"><p>以上例程的输出类似于:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
int(10)
int(100)
</pre></div>
</div>
</div>
</div>
<div class="refsect1 seealso" id="refsect1-function.uopz-get-property-seealso">
<h3 class="title">参见</h3>
<ul class="simplelist">
<li class="member"><span class="function"><a href="uopz_set_property.html" class="function" rel="rdfs-seeAlso">uopz_set_property()</a> - Sets value of existing class or instance property</span></li>
</ul>
</div>
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