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<h1 class="refname">SolrCollapseFunction::__construct</h1>
<p class="verinfo">(PECL solr >= 2.2.0)</p><p class="refpurpose"><span class="refname">SolrCollapseFunction::__construct</span> — <span class="dc-title">Constructor</span></p>
</div>
<div class="refsect1 description" id="refsect1-solrcollapsefunction.construct-description">
<h3 class="title">Description</h3>
<div class="constructorsynopsis dc-description">
<span class="modifier">public</span> <span class="methodname"><strong>SolrCollapseFunction::__construct</strong></span>
([ <span class="methodparam"><span class="type">string</span> <code class="parameter">$field</code></span>
] )</div>
<p class="para rdfs-comment">
Collapse Function constructor
</p>
</div>
<div class="refsect1 parameters" id="refsect1-solrcollapsefunction.construct-parameters">
<h3 class="title">Parameters</h3>
<dl>
<dt>
<code class="parameter">field</code></dt>
<dd>
<p class="para">
The field name to collapse on.
</p>
<p class="para">
In order to collapse a result. The field type must be a single valued String, Int or Float.
</p>
</dd>
</dl>
</div>
<div class="refsect1 examples" id="refsect1-solrcollapsefunction.construct-examples">
<h3 class="title">Examples</h3>
<div class="example" id="example-5920">
<p><strong>Example #1 <span class="function"><strong>SolrCollapseFunction::__construct()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /><br /></span><span style="color: #007700">include </span><span style="color: #DD0000">"bootstrap.php"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$options </span><span style="color: #007700">= array<br />(<br /> </span><span style="color: #DD0000">'hostname' </span><span style="color: #007700">=> </span><span style="color: #0000BB">SOLR_SERVER_HOSTNAME</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">'login' </span><span style="color: #007700">=> </span><span style="color: #0000BB">SOLR_SERVER_USERNAME</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">'password' </span><span style="color: #007700">=> </span><span style="color: #0000BB">SOLR_SERVER_PASSWORD</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">'port' </span><span style="color: #007700">=> </span><span style="color: #0000BB">SOLR_SERVER_PORT</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">'path' </span><span style="color: #007700">=> </span><span style="color: #0000BB">SOLR_SERVER_PATH<br /></span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$client </span><span style="color: #007700">= new </span><span style="color: #0000BB">SolrClient</span><span style="color: #007700">(</span><span style="color: #0000BB">$options</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$query </span><span style="color: #007700">= new </span><span style="color: #0000BB">SolrQuery</span><span style="color: #007700">(</span><span style="color: #DD0000">'*:*'</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$func </span><span style="color: #007700">= new </span><span style="color: #0000BB">SolrCollapseFunction</span><span style="color: #007700">(</span><span style="color: #DD0000">'field_name'</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$func</span><span style="color: #007700">-></span><span style="color: #0000BB">setMax</span><span style="color: #007700">(</span><span style="color: #DD0000">'sum(cscore(),field(some_other_field))'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$func</span><span style="color: #007700">-></span><span style="color: #0000BB">setSize</span><span style="color: #007700">(</span><span style="color: #0000BB">100</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$func</span><span style="color: #007700">-></span><span style="color: #0000BB">setNullPolicy</span><span style="color: #007700">(</span><span style="color: #0000BB">SolrCollapseFunction</span><span style="color: #007700">::</span><span style="color: #0000BB">NULLPOLICY_EXPAND</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$query</span><span style="color: #007700">-></span><span style="color: #0000BB">collapse</span><span style="color: #007700">(</span><span style="color: #0000BB">$func</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$queryResponse </span><span style="color: #007700">= </span><span style="color: #0000BB">$client</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #0000BB">$query</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$response </span><span style="color: #007700">= </span><span style="color: #0000BB">$queryResponse</span><span style="color: #007700">-></span><span style="color: #0000BB">getResponse</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$response</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
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</div>
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<div class="refsect1 seealso" id="refsect1-solrcollapsefunction.construct-seealso">
<h3 class="title">See Also</h3>
<ul class="simplelist">
<li class="member"><span class="methodname"><a href="solrquery.collapse.html" class="methodname" rel="rdfs-seeAlso">SolrQuery::collapse()</a> - Collapses the result set to a single document per group</span></li>
</ul>
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