reference/hash/functions/hash-copy.xml
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584a9fb976cccc93109776a904ec1c5ddb2d580f
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>resource</type><methodname>hash_copy</methodname>
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<methodparam><type>resource</type><parameter>context</parameter></methodparam>
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<type>HashContext</type><methodname>hash_copy</methodname>
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<methodparam><type>HashContext</type><parameter>context</parameter></methodparam>
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</methodsynopsis>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Returns a copy of Hashing Context resource.
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Returns a copy of Hashing Context.
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</para>
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</refsect1>
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<refsect1 role="changelog">
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&reftitle.changelog;
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<para>
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<informaltable>
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<tgroup cols="2">
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<thead>
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<row>
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<entry>&Version;</entry>
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<entry>&Description;</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>7.2.0</entry>
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<entry>
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Accept and return <classname>HashContext</classname> instead of resource.
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</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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</para>
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</refsect1>
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<programlisting role="php">
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<![CDATA[
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<?php
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$context = hash_init("md5");
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hash_update($context, "data");
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$context = hash_init("sha256");
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hash_update($context, "The quick brown fox ");
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/* copy context to be able to continue using it */
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$copy_context = hash_copy($context);
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echo hash_final($context), "\n";
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hash_update($copy_context, "data");
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hash_update($copy_context, "jumped over the lazy dog.");
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echo hash_final($copy_context), "\n";
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?>
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]]>
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&example.outputs;
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<screen>
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<![CDATA[
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8d777f385d3dfec8815d20f7496026dc
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511ae0b1c13f95e5f08f1a0dd3da3d93
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b29d66e56ed90cce9b0165c43fedec612b60a071974d8be4513e18580d55b5bd
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68b1282b91de2c054c36629cb8dd447f12f096d3e3c587978dc2248444633483
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]]>
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</screen>
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</example>
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