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@ -59,7 +59,7 @@ $var = NULL;
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<title>Casting to <literal>NULL</literal></title>
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<para>
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Casting a variable to <type>null</type> using <literal>unset($var)</literal>
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Casting a variable to <type>null</type> using <literal>(unset) $var</literal>
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will <emphasis>not</emphasis> remove the variable or unset its value.
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It will only return a &null; value.
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</para>
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