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<title>Gets the keys stored on all the servers</title>
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<h1 class="refname">Memcached::getAllKeys</h1>
<p class="verinfo">(PECL memcached >= 2.0.0)</p><p class="refpurpose"><span class="refname">Memcached::getAllKeys</span> — <span class="dc-title">Gets the keys stored on all the servers</span></p>
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<div class="refsect1 description" id="refsect1-memcached.getallkeys-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="type">array</span> <span class="methodname"><strong>Memcached::getAllKeys</strong></span>
( <span class="methodparam">void</span>
)</div>
<p class="para rdfs-comment">
<span class="function"><strong>Memcached::getAllKeys()</strong></span> queries each memcache server
and retrieves an array of all keys stored on them at that point in time.
This is not an atomic operation, so it isn't a truly consistent snapshot of
the keys at point in time. As memcache doesn't guarantee to return all keys
you also cannot assume that all keys have been returned.
</p>
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<div class="refsect1 parameters" id="refsect1-memcached.getallkeys-parameters">
<h3 class="title">Parameters</h3>
<p class="para">This function has no parameters.</p>
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<div class="refsect1 returnvalues" id="refsect1-memcached.getallkeys-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns the keys stored on all the servers on success or <strong><code>FALSE</code></strong> on failure.
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