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<title>Returns the current result's filename</title>
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<h1 class="refname">MongoGridFSCursor::key</h1>
<p class="verinfo">(PECL mongo >=0.9.0)</p><p class="refpurpose"><span class="refname">MongoGridFSCursor::key</span> — <span class="dc-title">Returns the current result's filename</span></p>
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<div class="refsect1 description" id="refsect1-mongogridfscursor.key-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>MongoGridFSCursor::key</strong></span>
( <span class="methodparam">void</span>
)</div>
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<div class="refsect1 parameters" id="refsect1-mongogridfscursor.key-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-mongogridfscursor.key-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
The current result's _id as a string.
</p>
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<div class="refsect1 changelog" id="refsect1-mongogridfscursor.key-changelog">
<h3 class="title">Changelog</h3>
<p class="para">
<table class="doctable informaltable">
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<th>Version</th>
<th>Description</th>
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<td>1.3.0</td>
<td>
The document's <em>_id</em> is returned as a string value,
since the key should be unique. Pre-1.3.0, <em>filename</em>
was returned.
</td>
</tr>
</tbody>
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