mirror of
https://github.com/sigmasternchen/php-doc-en
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fd35a907bb
Based on a patch provided by Huiren Woo. git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@345757 c90b9560-bf6c-de11-be94-00142212c4b1
105 lines
3.2 KiB
XML
105 lines
3.2 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<sect1 xml:id="language.errors.php7" xmlns="http://docbook.org/ns/docbook">
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<title>Errors in PHP 7</title>
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<para>
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PHP 7 changes how most errors are reported by PHP. Instead of reporting
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errors through the traditional error reporting mechanism used by PHP 5, most
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errors are now reported by throwing <classname>Error</classname> exceptions.
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</para>
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<para>
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As with normal exceptions, these <classname>Error</classname> exceptions
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will bubble up until they reach the first matching
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<link linkend="language.exceptions.catch"><literal>catch</literal></link>
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block. If there are no matching blocks, then any default exception handler
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installed with <function>set_exception_handler</function> will be called,
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and if there is no default exception handler, then the exception will be
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converted to a fatal error and will be handled like a traditional error.
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</para>
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<para>
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As the <classname>Error</classname> hierarchy does not inherit from
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<classname>Exception</classname>, code that uses
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<code>catch (Exception $e) { ... }</code> blocks to handle uncaught
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exceptions in PHP 5 will find that these <classname>Error</classname>s are
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not caught by these blocks. Either a <code>catch (Error $e) { ... }</code>
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block or a <function>set_exception_handler</function> handler is required.
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</para>
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<sect2 xml:id="language.errors.php7.hierarchy">
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<title><classname>Error</classname> hierarchy</title>
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<itemizedlist>
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<listitem>
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<simpara><classname>Throwable</classname></simpara>
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<itemizedlist>
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<listitem>
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<simpara><classname>Error</classname></simpara>
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<itemizedlist>
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<listitem>
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<simpara><classname>ArithmeticError</classname></simpara>
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<itemizedlist>
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<listitem>
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<simpara><classname>DivisionByZeroError</classname></simpara>
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</listitem>
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</itemizedlist>
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</listitem>
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<listitem>
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<simpara><classname>AssertionError</classname></simpara>
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</listitem>
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<listitem>
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<simpara><classname>CompileError</classname></simpara>
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<itemizedlist>
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<listitem>
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<simpara><classname>ParseError</classname></simpara>
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</listitem>
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</itemizedlist>
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</listitem>
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<listitem>
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<simpara><classname>TypeError</classname></simpara>
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<itemizedlist>
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<listitem>
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<simpara><classname>ArgumentCountError</classname></simpara>
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</listitem>
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</itemizedlist>
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</listitem>
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</itemizedlist>
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</listitem>
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<listitem>
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<simpara><classname>Exception</classname></simpara>
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<itemizedlist>
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<listitem>
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<simpara>...</simpara>
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</listitem>
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</itemizedlist>
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</listitem>
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</itemizedlist>
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</listitem>
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</itemizedlist>
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</sect2>
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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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