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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.21 $ -->
<appendix xml:id="errorfunc.constants" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
&reftitle.constants;
&extension.constants.core;
<note>
<simpara>
You may use these constant names in &php.ini; but not outside
of PHP, like in &httpd.conf;, where you'd
use the bitmask values instead.
</simpara>
</note>
<table xml:id="errorfunc.constants.errorlevels">
<title>Errors and Logging</title>
<tgroup cols="4">
<thead>
<row>
<entry>Value</entry>
<entry>Constant</entry>
<entry>Description</entry>
<entry>Note</entry>
</row>
</thead>
<tbody>
<row xml:id="errorfunc.constants.errorlevels.e-error">
<entry>1</entry>
<entry>
<constant>E_ERROR</constant>
(<type>integer</type>)
</entry>
<entry>
Fatal run-time errors. These indicate errors that can not be
recovered from, such as a memory allocation problem.
Execution of the script is halted.
</entry>
<entry></entry>
</row>
<row xml:id="errorfunc.constants.errorlevels.e-warning">
<entry>2</entry>
<entry>
<constant>E_WARNING</constant>
(<type>integer</type>)
</entry>
<entry>
Run-time warnings (non-fatal errors). Execution of the script is not
halted.
</entry>
<entry></entry>
</row>
<row xml:id="errorfunc.constants.errorlevels.e-parse">
<entry>4</entry>
<entry>
<constant>E_PARSE</constant>
(<type>integer</type>)
</entry>
<entry>
Compile-time parse errors. Parse errors should only be generated by
the parser.
</entry>
<entry></entry>
</row>
<row xml:id="errorfunc.constants.errorlevels.e-notice">
<entry>8</entry>
<entry>
<constant>E_NOTICE</constant>
(<type>integer</type>)
</entry>
<entry>
Run-time notices. Indicate that the script encountered something that
could indicate an error, but could also happen in the normal course of
running a script.
</entry>
<entry></entry>
</row>
<row xml:id="errorfunc.constants.errorlevels.e-core-error">
<entry>16</entry>
<entry>
<constant>E_CORE_ERROR</constant>
(<type>integer</type>)
</entry>
<entry>
Fatal errors that occur during PHP's initial startup. This is like an
<constant>E_ERROR</constant>, except it is generated by the core of PHP.
</entry>
<entry>since PHP 4</entry>
</row>
<row xml:id="errorfunc.constants.errorlevels.e-core-warning">
<entry>32</entry>
<entry>
<constant>E_CORE_WARNING</constant>
(<type>integer</type>)
</entry>
<entry>
Warnings (non-fatal errors) that occur during PHP's initial startup.
This is like an <constant>E_WARNING</constant>, except it is generated
by the core of PHP.
</entry>
<entry>since PHP 4</entry>
</row>
<row xml:id="errorfunc.constants.errorlevels.e-compile-error">
<entry>64</entry>
<entry>
<constant>E_COMPILE_ERROR</constant>
(<type>integer</type>)
</entry>
<entry>
Fatal compile-time errors. This is like an <constant>E_ERROR</constant>,
except it is generated by the Zend Scripting Engine.
</entry>
<entry>since PHP 4</entry>
</row>
<row xml:id="errorfunc.constants.errorlevels.e-compile-warning">
<entry>128</entry>
<entry>
<constant>E_COMPILE_WARNING</constant>
(<type>integer</type>)
</entry>
<entry>
Compile-time warnings (non-fatal errors). This is like an
<constant>E_WARNING</constant>, except it is generated by the Zend
Scripting Engine.
</entry>
<entry>since PHP 4</entry>
</row>
<row xml:id="errorfunc.constants.errorlevels.e-user-error">
<entry>256</entry>
<entry>
<constant>E_USER_ERROR</constant>
(<type>integer</type>)
</entry>
<entry>
User-generated error message. This is like an
<constant>E_ERROR</constant>, except it is generated in PHP code by
using the PHP function <function>trigger_error</function>.
</entry>
<entry>since PHP 4</entry>
</row>
<row xml:id="errorfunc.constants.errorlevels.e-user-warning">
<entry>512</entry>
<entry>
<constant>E_USER_WARNING</constant>
(<type>integer</type>)
</entry>
<entry>
User-generated warning message. This is like an
<constant>E_WARNING</constant>, except it is generated in PHP code by
using the PHP function <function>trigger_error</function>.
</entry>
<entry>since PHP 4</entry>
</row>
<row xml:id="errorfunc.constants.errorlevels.e-user-notice">
<entry>1024</entry>
<entry>
<constant>E_USER_NOTICE</constant>
(<type>integer</type>)
</entry>
<entry>
User-generated notice message. This is like an
<constant>E_NOTICE</constant>, except it is generated in PHP code by
using the PHP function <function>trigger_error</function>.
</entry>
<entry>since PHP 4</entry>
</row>
<row xml:id="errorfunc.constants.errorlevels.e-strict">
<entry>2048</entry>
<entry>
<constant>E_STRICT</constant>
(<type>integer</type>)
</entry>
<entry>
Run-time notices. Enable to have PHP suggest changes
to your code which will ensure the best interoperability
and forward compatibility of your code.
</entry>
<entry>since PHP 5</entry>
</row>
<row xml:id="errorfunc.constants.errorlevels.e-recoverable-error">
<entry>4096</entry>
<entry>
<constant>E_RECOVERABLE_ERROR</constant>
(<type>integer</type>)
</entry>
<entry>
Catchable fatal error. It indicates that a probably dangerous error
occured, but did not leave the Engine in an unstable state. If the error
is not caught by a user defined handle (see also
<function>set_error_handler</function>), the application aborts as it
was an <constant>E_ERROR</constant>.
</entry>
<entry>since PHP 5.2.0</entry>
</row>
<row xml:id="errorfunc.constants.errorlevels.e-deprecated-error">
<entry>8192</entry>
<entry>
<constant>E_DEPRECATED</constant>
(<type>integer</type>)
</entry>
<entry>
Run-time notices. Enable this to receive warnings about code
that will not work in future versions.
</entry>
<entry>since PHP 5.3.0</entry>
</row>
<row xml:id="errorfunc.constants.errorlevels.e-user-deprecated">
<entry>16384</entry>
<entry>
<constant>E_USER_DEPRECATED</constant>
(<type>integer</type>)
</entry>
<entry>
User-generated warning message. This is like an
<constant>E_DEPRECATED</constant>, except it is generated in PHP code by
using the PHP function <function>trigger_error</function>.
</entry>
<entry>since PHP 5.3.0</entry>
</row>
<row xml:id="errorfunc.constants.errorlevels.e-all">
<entry>30719</entry>
<entry>
<constant>E_ALL</constant>
(<type>integer</type>)
</entry>
<entry>
All errors and warnings, as supported, except of level
<constant>E_STRICT</constant> in PHP < 6.
</entry>
<entry>
32767 in PHP 6,
30719 in PHP 5.3.x,
6143 in PHP 5.2.x,
2047 previously
</entry>
</row>
</tbody>
</tgroup>
</table>
<para>
The above values (either numerical or symbolic) are used to build
up a bitmask that specifies which errors to report. You can use the
<link linkend="language.operators.bitwise">bitwise operators</link>
to combine these values or mask out certain types of errors. Note
that only '|', '~', '!', '^' and '&' will be understood within
&php.ini;.
</para>
</appendix>
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