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Update constants documentation for 5.6.

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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@333675 c90b9560-bf6c-de11-be94-00142212c4b1
This commit is contained in:
Adam Harvey 2014-06-01 22:06:02 +00:00
parent 8932dc479a
commit 0ee8eea304
1 changed files with 11 additions and 4 deletions
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15
language/constants.xml
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@ -70,9 +70,10 @@ define("__FOO__", "something");
<simpara>
Only scalar data (<type>boolean</type>, <type>integer</type>,
<type>float</type> and <type>string</type>) can be contained
in constants. It is possible to define constants as a
<type>resource</type>, but it should be avoided, as it can cause
unexpected results.
in constants prior to PHP 5.6. From PHP 5.6 onwards, it is also possible
to define an <type>array</type> constant. It is possible to define
constants as a <type>resource</type>, but it should be avoided, as it can
cause unexpected results.
</simpara>
<simpara>
You can get the value of a constant by simply specifying its name.
@ -131,7 +132,8 @@ define("__FOO__", "something");
</listitem>
<listitem>
<simpara>
Constants may only evaluate to scalar values.
Constants may only evaluate to scalar values, or scalar or array values
in PHP 5.6 and later.
</simpara>
</listitem>
</itemizedlist>
@ -162,6 +164,11 @@ echo Constant; // outputs "Constant" and issues a notice.
const CONSTANT = 'Hello World';
echo CONSTANT;
// Works as of PHP 5.6.0
const ANOTHER_CONST = CONSTANT.'; Goodbye World';
echo ANOTHER_CONST;
?>
]]>
</programlisting>