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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<appendix xml:id="uopz.constants" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
&reftitle.constants;
&extension.constants;
<para>
The following opcodes are defined as constants by uopz before 5.0.0:
</para>
<para>
<variablelist>
<varlistentry xml:id="constant.zend-exit">
<term>
<constant>ZEND_EXIT</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Invoked by exit() and die(), receives no arguments.
Return boolean &true; to exit, &false; to continue
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-new">
<term>
<constant>ZEND_NEW</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Invoked by object construction,
receives the class of object being created as the only argument
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-throw">
<term>
<constant>ZEND_THROW</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Invoked by the throw construct,
receives the class of exception being thrown as the only argument
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-fetch-class">
<term>
<constant>ZEND_FETCH_CLASS</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Invoked upon composure,
receives the class the name of the class being fetched as the only argument
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-add-trait">
<term>
<constant>ZEND_ADD_TRAIT</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Invoked upon composure,
receives the class the trait is being added to as the first argument,
and the name of the trait as the second argument
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-add-interface">
<term>
<constant>ZEND_ADD_INTERFACE</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Invoked upon composure,
receives the class the interface is being added to as the first argument,
and the name of the interface as the second argument
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-instanceof">
<term>
<constant>ZEND_INSTANCEOF</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Invoked by instanceof operator,
receives the object being verified as the first argument,
and the name of the class which that object should be as the second argument
</simpara>
</listitem>
</varlistentry>
</variablelist>
</para>
<para>
The following constants control the VM's behaviour after a user handler is invoked,
be extremely careful!
These constants are removed as of uopz 5.0.0.
</para>
<para>
<variablelist>
<varlistentry xml:id="constant.zend-user-opcode-continue">
<term>
<constant>ZEND_USER_OPCODE_CONTINUE</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Advance 1 opcode and continuue
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-user-opcode-enter">
<term>
<constant>ZEND_USER_OPCODE_ENTER</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Enter into new op_array without recursion
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-user-opcode-leave">
<term>
<constant>ZEND_USER_OPCODE_LEAVE</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Return to calling op_array within the same executor
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-user-opcode-dispatch">
<term>
<constant>ZEND_USER_OPCODE_DISPATCH</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Dispatch to original opcode handler
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-user-opcode-dispatch-to">
<term>
<constant>ZEND_USER_OPCODE_DISPATCH_TO</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Dispatch to a specific handler (OR'd with ZEND opcode constant)
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-user-opcode-return">
<term>
<constant>ZEND_USER_OPCODE_RETURN</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Exit from executor (return from function)
</simpara>
</listitem>
</varlistentry>
</variablelist>
</para>
<para>
The following modifiers are registered as constants by uopz
</para>
<para>
<variablelist>
<varlistentry xml:id="constant.zend-acc-public">
<term>
<constant>ZEND_ACC_PUBLIC</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Mark function as public, the default
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-acc-protected">
<term>
<constant>ZEND_ACC_PROTECTED</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Mark function as protected
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-acc-private">
<term>
<constant>ZEND_ACC_PRIVATE</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Mark function as private
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-acc-static">
<term>
<constant>ZEND_ACC_STATIC</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Mark function as static
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-acc-final">
<term>
<constant>ZEND_ACC_FINAL</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Mark function as final
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-acc-abstract">
<term>
<constant>ZEND_ACC_ABSTRACT</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Mark function as abstract
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-acc-class">
<term>
<constant>ZEND_ACC_CLASS</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Dummy registered for consistency, the default kind of class entry.
Removed as of uopz 5.0.0.
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-acc-interface">
<term>
<constant>ZEND_ACC_INTERFACE</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Mark class as interface.
Removed as of uopz 5.0.0.
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-acc-trait">
<term>
<constant>ZEND_ACC_TRAIT</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Mark class as trait.
Removed as of uopz 5.0.0.
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.zend-acc-fetch">
<term>
<constant>ZEND_ACC_FETCH</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Used for getting flags only.
Removed as of uopz 5.0.0.
</simpara>
</listitem>
</varlistentry>
</variablelist>
</para>
</appendix>
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