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<h1 class="refname">Schema::existsInDatabase</h1>
<p class="verinfo">(No version information available, might only be in Git)</p><p class="refpurpose"><span class="refname">Schema::existsInDatabase</span> — <span class="dc-title">Check if exists in database</span></p>
</div>
<div class="refsect1 description" id="refsect1-mysql-xdevapi-schema.existsindatabase-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="type">bool</span> <span class="methodname"><strong>mysql_xdevapi\Schema::existsInDatabase</strong></span>
( <span class="methodparam">void</span>
)</div>
<p class="para rdfs-comment">
Checks if the current object (schema, table, collection, or view) exists
in the schema object.
</p>
<div class="warning"><strong class="warning">Warning</strong><p class="simpara">This function is
currently not documented; only its argument list is available.
</p></div>
</div>
<div class="refsect1 parameters" id="refsect1-mysql-xdevapi-schema.existsindatabase-parameters">
<h3 class="title">Parameters</h3>
<p class="para">This function has no parameters.</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-mysql-xdevapi-schema.existsindatabase-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
<strong><code>TRUE</code></strong> if the schema, table, collection, or view still exists in the schema, else <strong><code>FALSE</code></strong>.
</p>
</div>
<div class="refsect1 examples" id="refsect1-mysql-xdevapi-schema.existsindatabase-examples">
<h3 class="title">Examples</h3>
<div class="example" id="example-2071">
<p><strong>Example #1 Schema::existsInDatabase example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$session </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_xdevapi</span><span style="color: #007700">\</span><span style="color: #0000BB">getSession</span><span style="color: #007700">(</span><span style="color: #DD0000">"mysqlx://user:password@localhost"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$session</span><span style="color: #007700">-></span><span style="color: #0000BB">sql</span><span style="color: #007700">(</span><span style="color: #DD0000">"DROP DATABASE IF EXISTS food"</span><span style="color: #007700">)-></span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$session</span><span style="color: #007700">-></span><span style="color: #0000BB">sql</span><span style="color: #007700">(</span><span style="color: #DD0000">"CREATE DATABASE food"</span><span style="color: #007700">)-></span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$session</span><span style="color: #007700">-></span><span style="color: #0000BB">sql</span><span style="color: #007700">(</span><span style="color: #DD0000">"CREATE TABLE food.fruit(name text, rating text)"</span><span style="color: #007700">)-></span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">$schema </span><span style="color: #007700">= </span><span style="color: #0000BB">$session</span><span style="color: #007700">-></span><span style="color: #0000BB">getSchema</span><span style="color: #007700">(</span><span style="color: #DD0000">"food"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$schema</span><span style="color: #007700">-></span><span style="color: #0000BB">createCollection</span><span style="color: #007700">(</span><span style="color: #DD0000">"trees"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// ...<br /><br /></span><span style="color: #0000BB">$trees </span><span style="color: #007700">= </span><span style="color: #0000BB">$schema</span><span style="color: #007700">-></span><span style="color: #0000BB">getCollection</span><span style="color: #007700">(</span><span style="color: #DD0000">"trees"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// ...<br /><br />// Is this collection still in the database (schema)?<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">$trees</span><span style="color: #007700">-></span><span style="color: #0000BB">existsInDatabase</span><span style="color: #007700">()) {<br /> echo </span><span style="color: #DD0000">"Yes, the 'trees' collection is still present."</span><span style="color: #007700">;<br />}</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>
Yes, the 'trees' collection is still present.
</pre></div>
</div>
</div>
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