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a9a6224ca9
Remove obsolete OOP5 TypeHinting page Document union types Closes GH-174 git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@351365 c90b9560-bf6c-de11-be94-00142212c4b1
81 lines
2.8 KiB
XML
81 lines
2.8 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<sect1 xml:id="function.return" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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<title>return</title>
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<?phpdoc print-version-for="return"?>
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<simpara>
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<literal>return</literal> returns program control to the calling module.
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Execution resumes at the expression following the called module's invocation.
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</simpara>
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<simpara>
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If called from within a function, the <literal>return</literal>
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statement immediately ends execution of the current function, and
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returns its argument as the value of the function
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call. <literal>return</literal> also ends the execution of
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an <function>eval</function> statement or script file.
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</simpara>
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<simpara>
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If called from the global scope, then execution of the current
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script file is ended. If the current script file was
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<function>include</function>d or <function>require</function>d,
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then control is passed back to the calling file. Furthermore, if
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the current script file was <function>include</function>d, then
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the value given to <literal>return</literal> will be returned as
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the value of the <function>include</function> call. If
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<literal>return</literal> is called from within the main script
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file, then script execution ends. If the current script file was
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named by the <link
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linkend="ini.auto-prepend-file">auto_prepend_file</link> or <link
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linkend="ini.auto-append-file">auto_append_file</link>
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configuration options in &php.ini;,
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then that script file's execution is ended.
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</simpara>
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<simpara>For more information, see <link
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linkend="functions.returning-values">Returning values</link>.
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</simpara>
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<para>
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<note>
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<simpara>
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Note that since <literal>return</literal> is a language
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construct and not a function, the parentheses surrounding its
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argument are not required and their use is discouraged.
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</simpara>
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</note>
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<note>
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<simpara>
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If no parameter is supplied, then the parentheses must be omitted
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and &null; will be
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returned. Calling <literal>return</literal> with parentheses but
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with no arguments will result in a parse error.
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</simpara>
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</note>
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</para>
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<para>
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As of PHP 7.1.0, return statements without an argument trigger <constant>E_COMPILE_ERROR</constant>,
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unless the return type is <type>void</type>, in which case return statements
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with an argument trigger that error.
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</para>
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</sect1>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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