php-doc-en/reference/var/reference.xml

<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.5 $ -->
 <reference id="ref.variables">
  <title>Variable Functions</title>
  <titleabbrev>Variables</titleabbrev>

  <partintro>
   <section id="variables.intro">
    &reftitle.intro;
    <para>
     For information on how variables behave, see
     the <link linkend="language.variables">Variables</link> entry in 
     the <link linkend="langref">Language Reference</link> section of the manual.
    </para>
   </section>

   <section id="variables.requirements">
    &reftitle.required;
    &no.requirement;
   </section>
   
   <section id="variables.installation">
    &reftitle.install;
    &no.install;
   </section>

   &reference.var.ini;

   <section id="variables.resources">
    &reftitle.resources;
    &no.resource;
   </section>

   <section id="variables.constants">
    &reftitle.constants;
    &no.constants;
   </section>

  </partintro>

&reference.var.functions;

 </reference>
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