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<title>Authentication</title>
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</div><hr /><div id="mongo.connecting.auth" class="section">
<h2 class="title">Authentication</h2>
<p class="para">
If MongoDB is started with the <em>--auth</em> or
<em>--keyFile</em> options, you must authenticate before you can do
any operations with the driver. You may authenticate a connection by
specifying the username and password in either the connection URI or the
<em>"username"</em> and <em>"password"</em> options for
<span class="function"><a href="mongoclient.construct.html" class="function">MongoClient::__construct()</a></span>.
</p>
<div class="example" id="mongo.connecting.auth-example">
<p><strong>Example #1 Authenticating against the "admin" database</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// Specifying the username and password in the connection URI (preferred)<br /></span><span style="color: #0000BB">$m </span><span style="color: #007700">= new </span><span style="color: #0000BB">MongoClient</span><span style="color: #007700">(</span><span style="color: #DD0000">"mongodb://</span><span style="color: #007700">${</span><span style="color: #0000BB">username</span><span style="color: #007700">}</span><span style="color: #DD0000">:</span><span style="color: #007700">${</span><span style="color: #0000BB">password</span><span style="color: #007700">}</span><span style="color: #DD0000">@localhost"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Specifying the username and password via the options array (alternative)<br /></span><span style="color: #0000BB">$m </span><span style="color: #007700">= new </span><span style="color: #0000BB">MongoClient</span><span style="color: #007700">(</span><span style="color: #DD0000">"mongodb://localhost"</span><span style="color: #007700">, array(</span><span style="color: #DD0000">"username" </span><span style="color: #007700">=> </span><span style="color: #0000BB">$username</span><span style="color: #007700">, </span><span style="color: #DD0000">"password" </span><span style="color: #007700">=> </span><span style="color: #0000BB">$password</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
<p class="para">
By default, the driver will authenticate against the <em>admin</em>
database. You may authenticate against a different database by specifying it
in either the connection URI or the <em>"db"</em> option for
<span class="function"><a href="mongoclient.construct.html" class="function">MongoClient::__construct()</a></span>.
</p>
<div class="example" id="mongo.connecting.auth-db-example">
<p><strong>Example #2 Authenticating against normal databases</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// Specifying the authentication database in the connection URI (preferred)<br /></span><span style="color: #0000BB">$m </span><span style="color: #007700">= new </span><span style="color: #0000BB">MongoClient</span><span style="color: #007700">(</span><span style="color: #DD0000">"mongodb://</span><span style="color: #007700">${</span><span style="color: #0000BB">username</span><span style="color: #007700">}</span><span style="color: #DD0000">:</span><span style="color: #007700">${</span><span style="color: #0000BB">password</span><span style="color: #007700">}</span><span style="color: #DD0000">@localhost/myDatabase"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Specifying the authentication database via the options array (alternative)<br /></span><span style="color: #0000BB">$m </span><span style="color: #007700">= new </span><span style="color: #0000BB">MongoClient</span><span style="color: #007700">(</span><span style="color: #DD0000">"mongodb://</span><span style="color: #007700">${</span><span style="color: #0000BB">username</span><span style="color: #007700">}</span><span style="color: #DD0000">:</span><span style="color: #007700">${</span><span style="color: #0000BB">password</span><span style="color: #007700">}</span><span style="color: #DD0000">@localhost"</span><span style="color: #007700">, array(</span><span style="color: #DD0000">"db" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"myDatabase"</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
<p class="para">
If your connection is dropped, the driver will automatically attempt to
reconnect and reauthenticate you.
</p>
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