errorexception.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: 2f3c1237bc46a7e40dae35e9f3aec2c1b2fa23b8 Maintainer: satoruyoshida Status: ready -->
<reference xml:id="class.errorexception" role="exception" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude">
 <title>ErrorException</title>
 <titleabbrev>ErrorException</titleabbrev>
 
 <partintro>
 
<!-- {{{ ErrorException intro -->
  <section xml:id="errorexception.intro">
   &reftitle.intro;
   <para>
    エラー例外です。
   </para>
  </section>
<!-- }}} -->
 
  <section xml:id="errorexception.synopsis">
   &reftitle.classsynopsis;
 
<!-- {{{ Synopsis -->
   <classsynopsis class="class">
    <ooexception>
     <exceptionname>ErrorException</exceptionname>
    </ooexception>

    <ooclass>
     <modifier>extends</modifier>
     <classname>Exception</classname>
    </ooclass>

    <classsynopsisinfo role="comment">&Properties;</classsynopsisinfo>
    <fieldsynopsis>
     <modifier>protected</modifier>
     <type>int</type>
     <varname linkend="errorexception.props.severity">severity</varname>
     <initializer>E_ERROR</initializer>
    </fieldsynopsis>

    <classsynopsisinfo role="comment">&InheritedProperties;</classsynopsisinfo>
    <xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.exception')/db:partintro/db:section/db:classsynopsis/db:fieldsynopsis[preceding-sibling::db:classsynopsisinfo[1][@role='comment' and text()='&Properties;']]))">
     <xi:fallback/>
    </xi:include>

    <classsynopsisinfo role="comment">&Methods;</classsynopsisinfo>
    <xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.errorexception')/db:refentry/db:refsect1[@role='description']/descendant::db:constructorsynopsis[@role='ErrorException'])">
     <xi:fallback/>
    </xi:include>
    <xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.errorexception')/db:refentry/db:refsect1[@role='description']/descendant::db:methodsynopsis[@role='ErrorException'])">
     <xi:fallback/>
    </xi:include>

    <classsynopsisinfo role="comment">&InheritedMethods;</classsynopsisinfo>
    <xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.exception')/db:refentry/db:refsect1[@role='description']/descendant::db:methodsynopsis[@role='Exception'])">
     <xi:fallback/>
    </xi:include>
   </classsynopsis>
<!-- }}} -->
 
  </section>
 
<!-- {{{ ErrorException properties -->
  <section xml:id="errorexception.props">
   &reftitle.properties;
   <variablelist>
    <varlistentry xml:id="errorexception.props.severity">
     <term><varname>severity</varname></term>
     <listitem>
      <para>例外の深刻度</para>
     </listitem>
    </varlistentry>
   </variablelist>
  </section>
<!-- }}} -->
<!-- {{{ Example -->

  <section xml:id="errorexception.examples">
   &reftitle.examples;
   <para>
    <example xml:id="errorexception.example.error-handler"><!-- {{{ -->
     <title><function>set_error_handler</function> を使用した、エラーメッセージから ErrorException への変換</title>
     <programlisting role="php">
 <![CDATA[
<?php

set_error_handler(function (int $errno, string $errstr, string $errfile, int $errline) {
    if (!(error_reporting() & $errno)) {
        // このエラーコードが error_reporting に含まれていない場合
        return;
    }

    if ($errno === E_DEPRECATED || $errno === E_USER_DEPRECATED) {
        // 推奨されない警告の場合は、例外をスローしません。
        // 新規または想定外の警告がアプリケーションを壊すからです。
        return;
    }

    throw new \ErrorException($errstr, 0, $errno, $errfile, $errline);
});

// 壊れたデータをアンシリアライズすると、エラーハンドラによって
// 警告は ErrorException に変換されます。
unserialize('broken data');

?>
]]>
     </programlisting>
     &example.outputs.similar;
     <screen>
<![CDATA[
Fatal error: Uncaught ErrorException: unserialize(): Error at offset 0 of 11 bytes in test.php:16
Stack trace:
#0 [internal function]: {closure}(2, 'unserialize(): ...', 'test.php', 16)
#1 test.php(16): unserialize('broken data')
#2 {main}
  thrown in test.php on line 16
]]>
     </screen>
    </example><!-- }}} -->
   </para>
  </section>
 
 </partintro>
 
 &language.predefined.errorexception.construct;
 &language.predefined.errorexception.getseverity;
 
</reference>
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