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added note about declare (bug #21331)

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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@152496 c90b9560-bf6c-de11-be94-00142212c4b1
This commit is contained in:
Kenneth Schwartz 2004-02-26 22:36:01 +00:00
parent b8604368ab
commit 7cb85eff94
1 changed files with 13 additions and 1 deletions
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14
reference/pcntl/functions/pcntl-signal.xml
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@ -1,5 +1,5 @@
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.7 $ -->
<!-- $Revision: 1.8 $ -->
<!-- splitted from ./en/functions/pcntl.xml, last change in rev 1.2 -->
<refentry id="function.pcntl-signal">
<refnamediv>
@ -91,6 +91,18 @@ echo "Done\n"
]]>
</programlisting>
</example>
<note>
<para>
As of PHP 4.3.0 PCNTL uses ticks as the signal handle callback mechanism,
which is much faster than the previous mechanism. This change follows the
same semantics as using
"<link linkend="control-structures.declare.ticks">user ticks</link>". You
must use the <link linkend="control-structures.declare">declare()</link>
statement to specify the locations in your program where callbacks are
allowed to occur for the signal handler to function properly (as used in
the above example).
</para>
</note>
<para>
See also <function>pcntl_fork</function> and
<function>pcntl_waitpid</function>.