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<title>Gets the value associated with a key</title>
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</div><hr /><div id="chdb.get" class="refentry">
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<h1 class="refname">chdb::get</h1>
<p class="verinfo">(PECL chdb >= 0.1.0)</p><p class="refpurpose"><span class="refname">chdb::get</span> — <span class="dc-title">Gets the value associated with a key</span></p>
</div>
<div class="refsect1 description" id="refsect1-chdb.get-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="type">string</span> <span class="methodname"><strong>chdb::get</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$key</code></span>
)</div>
<p class="para rdfs-comment">
Gets the value associated with a key from a chdb database.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-chdb.get-parameters">
<h3 class="title">Parameters</h3>
<dl>
<dt>
<span class="term"><em><code class="parameter">key</code></em></span>
<dd>
<p class="para">
The key for which to get the value.
</p>
</dd>
</dt>
</dl>
</div>
<div class="refsect1 returnvalues" id="refsect1-chdb.get-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns a string containing the value associated with the given
<em><code class="parameter">key</code></em>, or <strong><code>NULL</code></strong> if not found.
</p>
</div>
<div class="refsect1 examples" id="refsect1-chdb.get-examples">
<h3 class="title">Examples</h3>
<div class="example" id="example-4205">
<p><strong>Example #1 <span class="function"><strong>chdb::get()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /><br />$data </span><span style="color: #007700">= array(<br /> </span><span style="color: #DD0000">'key1' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'value1'</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">'key2' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'value2'</span><span style="color: #007700">,<br /> </span><span style="color: #FF8000">// ...<br /></span><span style="color: #007700">);<br /></span><span style="color: #0000BB">chdb_create</span><span style="color: #007700">(</span><span style="color: #DD0000">'data.chdb'</span><span style="color: #007700">, </span><span style="color: #0000BB">$data</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$chdb </span><span style="color: #007700">= new </span><span style="color: #0000BB">chdb</span><span style="color: #007700">(</span><span style="color: #DD0000">'data.chdb'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$value1 </span><span style="color: #007700">= </span><span style="color: #0000BB">$chdb</span><span style="color: #007700">-></span><span style="color: #0000BB">get</span><span style="color: #007700">(</span><span style="color: #DD0000">'key1'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$value2 </span><span style="color: #007700">= </span><span style="color: #0000BB">$chdb</span><span style="color: #007700">-></span><span style="color: #0000BB">get</span><span style="color: #007700">(</span><span style="color: #DD0000">'key2'</span><span style="color: #007700">);<br /><br />echo </span><span style="color: #0000BB">$value1</span><span style="color: #007700">, </span><span style="color: #0000BB">PHP_EOL</span><span style="color: #007700">;<br />echo </span><span style="color: #0000BB">$value2</span><span style="color: #007700">, </span><span style="color: #0000BB">PHP_EOL</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents"><p>The above example will output
something similar to:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
value1
value2
</pre></div>
</div>
</div>
</div>
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