uTools-Manuals/docs/php/snmp2_walk.html
2019-04-28 19:00:34 +08:00

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<title>Fetch all the SNMP objects from an agent</title>
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<div id="layout-content"><div id="function.snmp2-walk" class="refentry">
<div class="refnamediv">
<h1 class="refname">snmp2_walk</h1>
<p class="verinfo">(PHP &gt;= 5.2.0)</p><p class="refpurpose"><span class="refname">snmp2_walk</span> &mdash; <span class="dc-title">Fetch all the <acronym title="Simple Network Management Protocol">SNMP</acronym> objects from an agent</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.snmp2-walk-description">
<h3 class="title">说明</h3>
<div class="methodsynopsis dc-description">
<span class="methodname"><strong>snmp2_walk</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$host</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$community</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$object_id</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$timeout</code><span class="initializer"> = 1000000</span></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$retries</code><span class="initializer"> = 5</span></span>
]] ) : <span class="type">array</span></div>
<p class="para rdfs-comment">
<span class="function"><strong>snmp2_walk()</strong></span> function is used to read all the values from
an <acronym title="Simple Network Management Protocol">SNMP</acronym> agent specified by the <code class="parameter">hostname</code>.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.snmp2-walk-parameters">
<h3 class="title">参数</h3>
<dl>
<dt>
<code class="parameter">host</code></dt>
<dd>
<p class="para">
The SNMP agent (server).
</p>
</dd>
<dt>
<code class="parameter">community</code></dt>
<dd>
<p class="para">
The read community.
</p>
</dd>
<dt>
<code class="parameter">object_id</code></dt>
<dd>
<p class="para">
If <strong><code>NULL</code></strong>, <code class="parameter">object_id</code> is taken as the root of
the <acronym title="Simple Network Management Protocol">SNMP</acronym> objects tree and all objects under that tree are returned as
an array.
</p>
<p class="para">
If <code class="parameter">object_id</code> is specified, all the <acronym title="Simple Network Management Protocol">SNMP</acronym> objects
below that <code class="parameter">object_id</code> are returned.
</p>
</dd>
<dt>
<code class="parameter">timeout</code></dt>
<dd>
<p class="para">
The number of microseconds until the first timeout.
</p>
</dd>
<dt>
<code class="parameter">retries</code></dt>
<dd>
<p class="para">
The number of times to retry if timeouts occur.
</p>
</dd>
</dl>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.snmp2-walk-returnvalues">
<h3 class="title">返回值</h3>
<p class="para">
Returns an array of <acronym title="Simple Network Management Protocol">SNMP</acronym> object values starting from the
<code class="parameter">object_id</code> as root or <strong><code>FALSE</code></strong> on error.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.snmp2-walk-examples">
<h3 class="title">范例</h3>
<p class="para">
<div class="example" id="example-5569">
<p><strong>Example #1 <span class="function"><strong>snmp2_walk()</strong></span> Example</strong></p>
<div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$a&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">snmp2_walk</span><span style="color: #007700">(</span><span style="color: #DD0000">"127.0.0.1"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"public"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">""</span><span style="color: #007700">);<br /><br />foreach&nbsp;(</span><span style="color: #0000BB">$a&nbsp;</span><span style="color: #007700">as&nbsp;</span><span style="color: #0000BB">$val</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #DD0000">"</span><span style="color: #0000BB">$val</span><span style="color: #DD0000">\n"</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
</div>
</div>
</p>
<p class="para">
Above function call would return all the <acronym title="Simple Network Management Protocol">SNMP</acronym> objects from the
<acronym title="Simple Network Management Protocol">SNMP</acronym> agent running on localhost. One can step through the values
with a loop
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.snmp2-walk-seealso">
<h3 class="title">参见</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="function"><a href="snmp2_real_walk.html" class="function" rel="rdfs-seeAlso">snmp2_real_walk()</a> - Return all objects including their respective object ID within the specified one</span></li>
</ul>
</p>
</div>
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