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<title>This factory method creates a set from a file</title>
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<h1 class="refname">QuickHashIntSet::loadFromFile</h1>
<p class="verinfo">(PECL quickhash >= Unknown)</p><p class="refpurpose"><span class="refname">QuickHashIntSet::loadFromFile</span> — <span class="dc-title">This factory method creates a set from a file</span></p>
</div>
<div class="refsect1 description" id="refsect1-quickhashintset.loadfromfile-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="modifier">static</span> <span class="type"><a href="class.quickhashintset.html" class="type QuickHashIntSet">QuickHashIntSet</a></span> <span class="methodname"><strong>QuickHashIntSet::loadFromFile</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$filename</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$size</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$options</code></span>
]] )</div>
<p class="para rdfs-comment">
This factory method creates a new set from a definition file on disk. The
file format consists of 32 bit signed integers packed together in the
Endianness that the system that the code runs on uses.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-quickhashintset.loadfromfile-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">filename</code></em></span>
<dd>
<p class="para">
The filename of the file to read the set from.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">size</code></em></span>
<dd>
<p class="para">
The amount of bucket lists to configure. The number you pass in will be
automatically rounded up to the next power of two. It is also
automatically limited from 4 to 4194304.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">options</code></em></span>
<dd>
<p class="para">
The same options that the class' constructor takes; except that the size
option is ignored. It is automatically calculated to be the same as the
number of entries in the set, rounded up to the nearest power of two
with a maximum limit of 4194304.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-quickhashintset.loadfromfile-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns a new QuickHashIntSet.
</p>
</div>
<div class="refsect1 examples" id="refsect1-quickhashintset.loadfromfile-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-5134">
<p><strong>Example #1 <span class="function"><strong>QuickHashIntSet::loadFromFile()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$file </span><span style="color: #007700">= </span><span style="color: #0000BB">dirname</span><span style="color: #007700">( </span><span style="color: #0000BB">__FILE__ </span><span style="color: #007700">) . </span><span style="color: #DD0000">"/simple.set"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$set </span><span style="color: #007700">= </span><span style="color: #0000BB">QuickHashIntSet</span><span style="color: #007700">::</span><span style="color: #0000BB">loadFromFile</span><span style="color: #007700">(<br /> </span><span style="color: #0000BB">$file</span><span style="color: #007700">,<br /> </span><span style="color: #0000BB">QuickHashIntSet</span><span style="color: #007700">::</span><span style="color: #0000BB">DO_NOT_USE_ZEND_ALLOC<br /></span><span style="color: #007700">);<br />foreach( </span><span style="color: #0000BB">range</span><span style="color: #007700">( </span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">0x0f </span><span style="color: #007700">) as </span><span style="color: #0000BB">$key </span><span style="color: #007700">)<br />{<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">( </span><span style="color: #DD0000">"Key %3d (%2x) is %s\n"</span><span style="color: #007700">,<br /> </span><span style="color: #0000BB">$key</span><span style="color: #007700">, </span><span style="color: #0000BB">$key</span><span style="color: #007700">, <br /> </span><span style="color: #0000BB">$set</span><span style="color: #007700">-></span><span style="color: #0000BB">exists</span><span style="color: #007700">( </span><span style="color: #0000BB">$key </span><span style="color: #007700">) ? </span><span style="color: #DD0000">'set' </span><span style="color: #007700">: </span><span style="color: #DD0000">'unset'<br /> </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>
Key 0 ( 0) is unset
Key 1 ( 1) is set
Key 2 ( 2) is set
Key 3 ( 3) is set
Key 4 ( 4) is unset
Key 5 ( 5) is set
Key 6 ( 6) is unset
Key 7 ( 7) is set
Key 8 ( 8) is unset
Key 9 ( 9) is unset
Key 10 ( a) is unset
Key 11 ( b) is set
Key 12 ( c) is unset
Key 13 ( d) is set
Key 14 ( e) is unset
Key 15 ( f) is unset
</pre></div>
</div>
</div>
</p>
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