php-doc-en/reference/intl/constants.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<appendix xml:id="intl.constants" xmlns="http://docbook.org/ns/docbook"
 xmlns:xlink="http://www.w3.org/1999/xlink">
 &reftitle.constants;
 <para>
  <variablelist>
   <varlistentry>
    <term>
     <constant>INTL_MAX_LOCALE_LEN</constant>
     (<type>integer</type>)
    </term>
    <listitem>
     <simpara>
      Limit on locale length, set to 80 in PHP code. Locale names longer 
      than this limit will not be accepted.
     </simpara>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term>
     <constant>IDNA_DEFAULT</constant>
     (<type>integer</type>)
    </term>
    <listitem>
     <simpara>
      Prohibit processing of unassigned codepoints in the input for IDN 		
	  functions and do not check if the input conforms to domain name ASCII rules.
     </simpara>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term>
     <constant>IDNA_ALLOW_UNASSIGNED</constant>
     (<type>integer</type>)
    </term>
    <listitem>
     <simpara>
      Allow processing of unassigned codepoints in the input for IDN functions.
     </simpara>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term>
     <constant>IDNA_USE_STD3_RULES</constant>
     (<type>integer</type>)
    </term>
    <listitem>
     <simpara>
      Check if the input for IDN functions conforms to domain name ASCII rules.
     </simpara>
    </listitem>
   </varlistentry>
  </variablelist>
 </para>
</appendix>

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