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<?xml version="1.0" encoding="big5"?>
<chapter id="language.constants">
<title>`</title>
<simpara>
PHP ۤvѤF@DZ`ơA ]\{ɥt~AwqUر`ơC`ƩMܼƫܬۦA ̤uӤOG `
<function>define</function> ƨөwqA t~NO@wq`ƪȤiܡC
</simpara>
<para>
tΤwwq`ƥ]A:
<variablelist>
<varlistentry>
<term>__FILE__</term>
<listitem>
<simpara>
xsFثeQ檺WrC pGΦbQ include() require() A hxsFWrӫDQ include() reuqire() WrC
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>__LINE__</term>
<listitem>
<simpara>
{bbQR/ѪROC pGOObQ include() require() A hxsObӤl渹C
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>PHP_VERSION</term>
<listitem>
<simpara>
HyAxsF{ PHP C Ҧp '3.0.8-dev'.
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>PHP_OS</term>
<listitem>
<simpara>
B PHP @~tΡA p 'Linux'. </simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>&true;</term>
<listitem>
<simpara>
Nȯu/OC
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>&false;</term>
<listitem>
<simpara>
NȰ/DC
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>E_ERROR</term>
<listitem>
<simpara>
NX{FëDѪRW~äޭP{Lk~UhC </simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>E_WARNING</term>
<listitem>
<simpara>
NX{Fĵ PHP |~{C o˪ĵiε{CҤlp <function>ereg</function>
F˿FC
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>E_PARSE</term>
<listitem>
<simpara>
ѪRbROɵo{F~A bopULk^_{C
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>E_NOTICE</term>
<listitem>
<simpara>
NǨƤlA iOoͤF~]iणOC oDҤl: prިΰ}CɨSprΤA_ӡB SwܼƪܼơEEE
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>E_ALL</term>
<listitem>
<simpara>
??
</simpara>
</listitem>
</varlistentry>
</variablelist>
</para>
<para>
oǥ E_ Y`Ƴq`OM
<function>error_reporting</function>ưtXΨӽվ error reporting level A NOճ]ǿ~|QBzA Ƿ|QC
</para>
<para>
pnwqۤv`ơA Х
<function>define</function> ơC </para>
<para>
d߳oO`ƦӤO C 檺G `ƥuxsXkƾڡC
<example>
<title>]w `</title>
<programlisting>
<?php
define("CONSTANT", "Hello world.");
echo CONSTANT; // outputs "Hello world."
?>
</programlisting>
</example>
<example>
<title>__FILE__ M __LINE__ Ϊk
</title>
<programlisting>
<?php
function report_error($file, $line, $message) {
echo "An error occured in $file on line $line: $message.";
}
report_error(__FILE__,__LINE__, "Something went wrong!");
?>
</programlisting>
</example></para>
</chapter>
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Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"../manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
-->
|
