php-doc-en/reference/quickhash/quickhashintstringhash/loadfromstring.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="quickhashintstringhash.loadfromstring" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>QuickHashIntStringHash::loadFromString</refname>
  <refpurpose>This factory method creates a hash from a string</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <modifier>public</modifier> <modifier>static</modifier> <type>QuickHashIntStringHash</type><methodname>QuickHashIntStringHash::loadFromString</methodname>
   <methodparam><type>string</type><parameter>contents</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>size</parameter><initializer>0</initializer></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>options</parameter><initializer>0</initializer></methodparam>
  </methodsynopsis>
  <para>
   This factory method creates a new hash from a definition in a string. The
   format is the same as the one used in "loadFromFile".
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>contents</parameter></term>
     <listitem>
      <para>
       The string containing a serialized format of the hash.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>size</parameter></term>
     <listitem>
      <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.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>options</parameter></term>
     <listitem>
      <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 hash, rounded up to the nearest power of two
       with a maximum limit of 4194304.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns a new QuickHashIntStringHash.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>QuickHashIntStringHash::loadFromString</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
$contents = file_get_contents( dirname( __FILE__ ) . "/simple.hash" );
$hash = QuickHashIntStringHash::loadFromString(
    $contents,
    QuickHashIntStringHash::DO_NOT_USE_ZEND_ALLOC
);
foreach( range( 0, 0x0f ) as $key )
{
    printf( "Key %3d (%2x) is %s\n",
        $key, $key, 
        $hash->exists( $key ) ? 'set' : 'unset'
    );
}
?>
]]>
    </programlisting>
    &example.outputs.similar;
    <screen>
<![CDATA[
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
]]>
    </screen>
   </example>
  </para>
 </refsect1>


</refentry>

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