php-doc-en/reference/info/functions/php-sapi-name.xml

<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.11 $ -->
<refentry id="function.php-sapi-name">
 <refnamediv>
  <refname>php_sapi_name</refname>
  <refpurpose>Returns the type of interface between web server and PHP</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>string</type><methodname>php_sapi_name</methodname>
   <void/>
  </methodsynopsis>
  <simpara>
   Returns a lowercase string which describes the type of interface between
   web server and PHP (Server API, SAPI). In CGI PHP, this string is "cgi",
   in <literal>mod_php</literal> for Apache, this string is "apache" and so
   on.
  </simpara>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns the interface type, as a lowercase string.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>php_sapi_name</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
$sapi_type = php_sapi_name();
if (substr($sapi_type, 0, 3) == 'cgi') {
    echo "You are using CGI PHP\n";
} else {
    echo "You are not using CGI PHP\n";
}
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><link linkend="reserved.constants.core">PHP_SAPI</link></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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