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Fix capitalisation for null type and use entity for null value.
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@327443 c90b9560-bf6c-de11-be94-00142212c4b1
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@ -5,7 +5,7 @@
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<para>
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The special &null; value represents a variable with no value. &null; is the
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only possible value of type <type>NULL</type>.
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only possible value of type <type>null</type>.
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</para>
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<para>
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@ -56,7 +56,7 @@ $var = NULL;
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</sect2>
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<sect2 xml:id="language.types.null.casting">
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<title>Casting to <literal>NULL</literal></title>
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<title>Casting to &null;</title>
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<para>
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Casting a variable to <type>null</type> using <literal>(unset) $var</literal>
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