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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 297028 $ -->
<refentry xml:id="internals2.ze1.zendapi.macros.zend-mod-required-ex" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>ZEND_MOD_REQUIRED_EX</refname>
<refpurpose>Create a full dependency entry for the required version of an extension</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<literallayout>#include <zend_modules.h></literallayout>
<methodsynopsis>
<void/><methodname>ZEND_MOD_REQUIRED_EX</methodname>
<methodparam><type>char *</type><parameter>name</parameter></methodparam>
<methodparam><type>char *</type><parameter>rel</parameter></methodparam>
<methodparam><type>char *</type><parameter>ver</parameter></methodparam>
</methodsynopsis>
<para>
<function>ZEND_MOD_REQUIRED_EX</function> generates a <type>zend_module_dep</type>
entry for the extension named by <parameter>ext_name</parameter>, including version
information. It allows to specify requirements like "up to version x.y",
"starting with version x.y" or "exactly version x.y".
</para>
<warning>
<para>
Version specific comparisons are not implemented yet,
so for now <function>ZEND_MOD_REUQUIRE</function> and
<function>ZEND_MOD_REQUIRE_EX</function> define identical behavior.
</para>
</warning>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>name</parameter></term>
<listitem>
<para>
Name of the required extension
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>rel</parameter></term>
<listitem>
<para>
Comparison operator, one of <literal>eq</literal>, <literal>lt</literal>,
<literal>le</literal>, <literal>gt</literal>, or <literal>ge</literal>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>ver</parameter></term>
<listitem>
<para>
Version string
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Code to register the required extension
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
See <function>ZEND_MOD_REQUIRED</function> if you do not need to
specify extension version requirements.
</para>
<para>
See also <function>ZEND_MOD_OPTIONAL</function>,
<function>ZEND_MOD_OPTIONAL_EX</function>,
<function>ZEND_MOD_CONFLICTS</function>, and
<function>ZEND_MOD_CONFLICTS_EX</function>.
</para>
</refsect1>
</refentry>
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