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<title>Inserts a document into the collection</title>
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<h1 class="refname">MongoCollection::insert</h1>
<p class="verinfo">(PECL mongo >=0.9.0)</p><p class="refpurpose"><span class="refname">MongoCollection::insert</span> — <span class="dc-title">Inserts a document into the collection</span></p>
</div>
<div class="refsect1 description" id="refsect1-mongocollection.insert-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="type"><span class="type bool|array">bool|array</span></span> <span class="methodname"><strong>MongoCollection::insert</strong></span>
( <span class="methodparam"><span class="type"><span class="type array|object">array|object</span></span> <code class="parameter">$a</code></span>
[, <span class="methodparam"><span class="type">array</span> <code class="parameter">$options</code><span class="initializer"> = array()</span></span>
] )</div>
<p class="para rdfs-comment">
All strings sent to the database must be UTF-8. If a string is not UTF-8, a
<a href="class.mongoexception.html" class="classname">MongoException</a> will be thrown. To insert
(or query for) a non-UTF-8 string, use <a href="class.mongobindata.html" class="classname">MongoBinData</a>.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-mongocollection.insert-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term">
<em><code class="parameter">a</code></em>
</span>
<dd>
<p class="para">
An array or object. If an object is used, it may not have protected or
private properties.
</p>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
If the parameter does not have an <em>_id</em> key or
property, a new <a href="class.mongoid.html" class="classname">MongoId</a> instance will be created
and assigned to it. This special behavior does not mean that the
parameter is passed by reference.
</p>
</p></blockquote>
</dd>
</dt>
<dt>
<span class="term">
<em><code class="parameter">options</code></em>
</span>
<dd>
<p class="para">
Options for the insert.
<ul class="itemizedlist">
<li class="listitem"><p class="para"><em>"fsync"</em></p><p class="para">Boolean, defaults to <strong><code>FALSE</code></strong>. If journalling is enabled, it works exactly like <em>"j"</em>. If journalling is not enabled, it forces the insert to be synced to disk before returning success. If <strong><code>TRUE</code></strong>, an acknowledged insert is implied and will override setting <em>w</em> to <em>0</em>.</p><blockquote class="note"><p><strong class="note">Note</strong>: <p class="para">This option is <em class="emphasis">deprecated</em>. Please use the <em>"j"</em> option instead.</p></p></blockquote></li>
<li class="listitem"><p class="para"><em>"j"</em></p><p class="para">Boolean, defaults to <strong><code>FALSE</code></strong>. Forces the insert to be synced to the journal before returning success. If <strong><code>TRUE</code></strong>, an acknowledged insert is implied and will override setting <em>w</em> to <em>0</em>.</p></li>
<li class="listitem"><p class="para"><em>"w"</em></p><p class="para">See <a href="mongo.writeconcerns.html" class="link">WriteConcerns</a>. The default value for <a href="class.mongoclient.html" class="classname">MongoClient</a> is <em>1</em>.</p></li>
<li class="listitem"><p class="para"><em>"wtimeout"</em></p><p class="para">How long to wait for <a href="mongo.writeconcerns.html" class="link">WriteConcern</a> acknowledgement. The default value for <a href="class.mongoclient.html" class="classname">MongoClient</a> is <em>10000</em> milliseconds.</p></li>
<li class="listitem"><p class="para"><em>"safe"</em></p><p class="para"><em class="emphasis">Deprecated</em>. Please use the <a href="mongo.writeconcerns.html" class="link">WriteConcern</a> <em>w</em> option.</p></li>
<li class="listitem"><p class="para"><em>"timeout"</em></p><p class="para">Integer, defaults to <em>MongoCursor::$timeout</em>. If acknowledged writes are used, this sets how long (in milliseconds) for the client to wait for a database response. If the database does not respond within the timeout period, a <a href="class.mongocursortimeoutexception.html" class="classname">MongoCursorTimeoutException</a> will be thrown.</p></li>
</ul>
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-mongocollection.insert-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns an array containing the status of the insertion if the
<em>"w"</em> option is set. Otherwise, returns <strong><code>TRUE</code></strong> if the
inserted array is not empty (a <a href="class.mongoexception.html" class="classname">MongoException</a> will be
thrown if the inserted array is empty).
</p>
<p class="para">
If an array is returned, the following keys may be present:
<dl>
<dt>
<span class="term">
<em><code class="parameter">ok</code></em>
</span>
<dd>
<p class="para">
This should almost always be 1 (unless last_error itself failed).
</p>
</dd>
</dt>
<dt>
<span class="term">
<em><code class="parameter">err</code></em>
</span>
<dd>
<p class="para">
If this field is non-null, an error occurred on the previous operation.
If this field is set, it will be a string describing the error that
occurred.
</p>
</dd>
</dt>
<dt>
<span class="term">
<em><code class="parameter">code</code></em>
</span>
<dd>
<p class="para">
If a database error occurred, the relevant error code will be passed
back to the client.
</p>
</dd>
</dt>
<dt>
<span class="term">
<em><code class="parameter">errmsg</code></em>
</span>
<dd>
<p class="para">
This field is set if something goes wrong with a database command. It
is coupled with <em>ok</em> being 0. For example, if
<em>w</em> is set and times out, errmsg will be set to "timed
out waiting for slaves" and <em>ok</em> will be 0. If this
field is set, it will be a string describing the error that occurred.
</p>
</dd>
</dt>
<dt>
<span class="term">
<em><code class="parameter">n</code></em>
</span>
<dd>
<p class="para">
If the last operation was an update, upsert, or a remove, the number
of documents affected will be returned. For insert operations, this value
is always <em>0</em>.
</p>
</dd>
</dt>
<dt>
<span class="term">
<em><code class="parameter">wtimeout</code></em>
</span>
<dd>
<p class="para">
If the previous option timed out waiting for replication.
</p>
</dd>
</dt>
<dt>
<span class="term">
<em><code class="parameter">waited</code></em>
</span>
<dd>
<p class="para">
How long the operation waited before timing out.
</p>
</dd>
</dt>
<dt>
<span class="term">
<em><code class="parameter">wtime</code></em>
</span>
<dd>
<p class="para">
If <em>w</em> was set and the operation succeeded, how long it took to
replicate to <em>w</em> servers.
</p>
</dd>
</dt>
<dt>
<span class="term">
<em><code class="parameter">upserted</code></em>
</span>
<dd>
<p class="para">
If an upsert occurred, this field will contain the new record's
<em>_id</em> field. For upserts, either this field or
<em>updatedExisting</em> will be present (unless an error
occurred).
</p>
</dd>
</dt>
<dt>
<span class="term">
<em><code class="parameter">updatedExisting</code></em>
</span>
<dd>
<p class="para">
If an upsert updated an existing element, this field will be true. For
upserts, either this field or upserted will be present (unless an error
occurred).
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 errors" id="refsect1-mongocollection.insert-errors">
<h3 class="title">Errors/Exceptions</h3>
<p class="para">
Throws <a href="class.mongoexception.html" class="classname">MongoException</a> if the inserted document is
empty or if it contains zero-length keys. Attempting to insert an object with
protected and private properties will cause a zero-length key error.
</p>
<p class="para">Throws <a href="class.mongocursorexception.html" class="classname">MongoCursorException</a> if the "w" option is set and the write fails.</p><p class="para">Throws <a href="class.mongocursortimeoutexception.html" class="classname">MongoCursorTimeoutException</a> if the "w" option is set to a value greater than one and the operation takes longer than <var class="varname"><var class="varname">MongoCursor::$timeout</var></var> milliseconds to complete. This does not kill the operation on the server, it is a client-side timeout. The operation in <em>MongoCollection::$wtimeout</em> is milliseconds.</p>
</div>
<div class="refsect1 changelog" id="refsect1-mongocollection.insert-changelog">
<h3 class="title">Changelog</h3>
<p class="para">
<table class="doctable informaltable">
<thead>
<tr>
<th>Version</th>
<th>Description</th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td>1.3.0</td>
<td>
The <em><code class="parameter">options</code></em> parameter no longer accepts a boolean
to signify a acknowledged write. Instead, this now has to be done with
<em>array('w' => 1)</em> (The default behaviour of
<a href="class.mongoclient.html" class="classname">MongoClient</a>).
</td>
</tr>
<tr>
<td>1.2.0</td>
<td>Added <em>"timeout"</em> option.</td>
</tr>
<tr>
<td>1.0.11</td>
<td>
Disconnects on "not master" errors if <em>"safe"</em> is set.
</td>
</tr>
<tr>
<td>1.0.9</td>
<td>
<p class="para">
Added ability to pass integers to the <em>"safe"</em> option,
which previously only accepted booleans.
</p>
<p class="para">
Added <em>"fsync"</em> option.
</p>
<p class="para">
The return type was changed to be an array containing error information
if the <em>"safe"</em> option is used. Otherwise, a boolean
is returned as before.
</p>
</td>
</tr>
<tr>
<td>1.0.5</td>
<td>
Changed second parameter to be an array of options. Pre-1.0.5, the
second parameter was a boolean indicating the <em>"safe"</em>
option.
</td>
</tr>
<tr>
<td>1.0.1</td>
<td>
Throw a <a href="class.mongocursorexception.html" class="classname">MongoCursorException</a> if the
<em>"safe"</em> option is set and the insert fails.
</td>
</tr>
</tbody>
</table>
</p>
</div>
<div class="refsect1 examples" id="refsect1-mongocollection.insert-examples">
<h3 class="title">Examples</h3>
<div class="example" id="example-1462">
<p><strong>Example #1 <span class="function"><strong>MongoCollection::insert()</strong></span> <em>_id</em> example</strong></p>
<div class="example-contents"><p>
An <em>_id</em> field will be added to the inserted document if
not already present. Depending on how the parameter is passed, a generated
<em>_id</em> may or may not be available to calling code.
</p></div>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /><br />$m </span><span style="color: #007700">= new </span><span style="color: #0000BB">MongoClient</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$collection </span><span style="color: #007700">= </span><span style="color: #0000BB">$m</span><span style="color: #007700">-></span><span style="color: #0000BB">selectCollection</span><span style="color: #007700">(</span><span style="color: #DD0000">'test'</span><span style="color: #007700">, </span><span style="color: #DD0000">'phpmanual'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// If an array literal is used, there is no way to access the generated _id<br /></span><span style="color: #0000BB">$collection</span><span style="color: #007700">-></span><span style="color: #0000BB">insert</span><span style="color: #007700">(array(</span><span style="color: #DD0000">'x' </span><span style="color: #007700">=> </span><span style="color: #0000BB">1</span><span style="color: #007700">));<br /><br /></span><span style="color: #FF8000">// The _id is available on an array passed by value<br /></span><span style="color: #0000BB">$a </span><span style="color: #007700">= array(</span><span style="color: #DD0000">'x' </span><span style="color: #007700">=> </span><span style="color: #0000BB">2</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$collection</span><span style="color: #007700">-></span><span style="color: #0000BB">insert</span><span style="color: #007700">(</span><span style="color: #0000BB">$a</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$a</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// The _id is not available on an array passed by reference<br /></span><span style="color: #0000BB">$b </span><span style="color: #007700">= array(</span><span style="color: #DD0000">'x' </span><span style="color: #007700">=> </span><span style="color: #0000BB">3</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$ref </span><span style="color: #007700">= &</span><span style="color: #0000BB">$b</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$collection</span><span style="color: #007700">-></span><span style="color: #0000BB">insert</span><span style="color: #007700">(</span><span style="color: #0000BB">$ref</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$ref</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// The _id is available if a wrapping function does not trigger copy-on-write<br /></span><span style="color: #007700">function </span><span style="color: #0000BB">insert_no_cow</span><span style="color: #007700">(</span><span style="color: #0000BB">$collection</span><span style="color: #007700">, </span><span style="color: #0000BB">$document</span><span style="color: #007700">)<br />{<br /> </span><span style="color: #0000BB">$collection</span><span style="color: #007700">-></span><span style="color: #0000BB">insert</span><span style="color: #007700">(</span><span style="color: #0000BB">$document</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #0000BB">$c </span><span style="color: #007700">= array(</span><span style="color: #DD0000">'x' </span><span style="color: #007700">=> </span><span style="color: #0000BB">4</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">insert_no_cow</span><span style="color: #007700">(</span><span style="color: #0000BB">$collection</span><span style="color: #007700">, </span><span style="color: #0000BB">$c</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$c</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// The _id is not available if a wrapping function triggers copy-on-write<br /></span><span style="color: #007700">function </span><span style="color: #0000BB">insert_cow</span><span style="color: #007700">(</span><span style="color: #0000BB">$collection</span><span style="color: #007700">, </span><span style="color: #0000BB">$document</span><span style="color: #007700">)<br />{<br /> </span><span style="color: #0000BB">$document</span><span style="color: #007700">[</span><span style="color: #DD0000">'y'</span><span style="color: #007700">] = </span><span style="color: #0000BB">1</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">$collection</span><span style="color: #007700">-></span><span style="color: #0000BB">insert</span><span style="color: #007700">(</span><span style="color: #0000BB">$document</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #0000BB">$d </span><span style="color: #007700">= array(</span><span style="color: #DD0000">'x' </span><span style="color: #007700">=> </span><span style="color: #0000BB">5</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">insert_cow</span><span style="color: #007700">(</span><span style="color: #0000BB">$collection</span><span style="color: #007700">, </span><span style="color: #0000BB">$d</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$d</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>
array(2) {
["x"]=>
int(2)
["_id"]=>
object(MongoId)#4 (0) {
}
}
array(1) {
["x"]=>
int(3)
}
array(2) {
["x"]=>
int(4)
["_id"]=>
object(MongoId)#5 (0) {
}
}
array(1) {
["x"]=>
int(5)
}
</pre></div>
</div>
</div>
<div class="example" id="example-1463">
<p><strong>Example #2 <span class="function"><strong>MongoCollection::insert()</strong></span> acknowledged write example</strong></p>
<div class="example-contents"><p>
This example shows inserting two elements with the same _id, which causes
a <a href="class.mongocursorexception.html" class="classname">MongoCursorException</a> to be thrown, as
<em><code class="parameter">w</code></em> was set.
</p></div>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /><br />$person </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"name" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"Joe"</span><span style="color: #007700">, </span><span style="color: #DD0000">"age" </span><span style="color: #007700">=> </span><span style="color: #0000BB">20</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$collection</span><span style="color: #007700">-></span><span style="color: #0000BB">insert</span><span style="color: #007700">(</span><span style="color: #0000BB">$person</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// now $person has an _id field, so if we save it <br />// again, we will get an exception<br /></span><span style="color: #007700">try {<br /> </span><span style="color: #0000BB">$collection</span><span style="color: #007700">-></span><span style="color: #0000BB">insert</span><span style="color: #007700">(</span><span style="color: #0000BB">$person</span><span style="color: #007700">, array(</span><span style="color: #DD0000">"w" </span><span style="color: #007700">=> </span><span style="color: #0000BB">1</span><span style="color: #007700">));<br />} catch(</span><span style="color: #0000BB">MongoCursorException $e</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"Can't save the same person twice!\n"</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</div>
<div class="refsect1 seealso" id="refsect1-mongocollection.insert-seealso">
<h3 class="title">See Also</h3>
<ul class="simplelist">
<li class="member"> <span class="function"><a href="mongocollection.batchinsert.html" class="function" rel="rdfs-seeAlso">MongoCollection::batchInsert()</a> - Inserts multiple documents into this collection</span></li>
<li class="member"> <span class="function"><a href="mongocollection.update.html" class="function" rel="rdfs-seeAlso">MongoCollection::update()</a> - Update records based on a given criteria</span></li>
<li class="member"> <span class="function"><a href="mongocollection.find.html" class="function" rel="rdfs-seeAlso">MongoCollection::find()</a> - Queries this collection, returning a MongoCursor
for the result set</span></li>
<li class="member"> <span class="function"><a href="mongocollection.remove.html" class="function" rel="rdfs-seeAlso">MongoCollection::remove()</a> - Remove records from this collection</span></li>
<li class="member">MongoDB core docs on <a href="docs.mongodb.org/manual/tutorial/insert-documents/" class="link external">» insert</a>.</li>
</ul>
</div>
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