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

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<title>Gets a value</title>
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<body class="docs"><div id="layout">
<div id="layout-content"><div id="function.px-get-value" class="refentry">
<div class="refnamediv">
<h1 class="refname">px_get_value</h1>
<p class="verinfo">(PECL paradox &gt;= 1.1.0)</p><p class="refpurpose"><span class="refname">px_get_value</span> &mdash; <span class="dc-title">Gets a value</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.px-get-value-description">
<h3 class="title">说明</h3>
<div class="methodsynopsis dc-description">
<span class="methodname"><strong>px_get_value</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$pxdoc</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$name</code></span>
) : <span class="type">float</span></div>
<p class="para rdfs-comment">
Gets various values.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.px-get-value-parameters">
<h3 class="title">参数</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">pxdoc</code></dt>
<dd>
<p class="para">
Resource identifier of the paradox database
as returned by <span class="function"><a href="px_new.html" class="function">px_new()</a></span>.
</p>
</dd>
<dt>
<code class="parameter">name</code></dt>
<dd>
<p class="para">
<code class="parameter">name</code> can be one of the following.
<dl>
<dt>
numprimkeys</dt>
<dd>
<p class="para">
The number of primary keys. Paradox databases always use the
first <em>numprimkeys</em> fields for the primary
index.
</p>
</dd>
</dl>
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.px-get-value-returnvalues">
<h3 class="title">返回值</h3>
<p class="para">
Returns the value of the parameter 或者在失败时返回 <strong><code>FALSE</code></strong>.
</p>
</div>
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