php-doc-en/appendices/migration70/constants.xml

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<sect1 xml:id="migration70.constants" xmlns:xlink="http://www.w3.org/1999/xlink">
 <title>New Global Constants</title>

 <sect2 xml:id="migration70.constants.core">
  <title><link linkend="reserved.constants">Core Predefined Constants</link></title>

  <itemizedlist>
   <listitem>
    <simpara>
     <constant>PHP_INT_MIN</constant>
    </simpara>
   </listitem>
  </itemizedlist>
 </sect2>

 <sect2 xml:id="migration70.constants.gd">
  <title><link linkend="book.image">GD</link></title>

  <itemizedlist>
   <listitem>
    <simpara>
     <constant>IMG_WEBP</constant> (as of PHP 7.0.10)
    </simpara>
   </listitem>
  </itemizedlist>
 </sect2>

 <sect2 xml:id="migration70.constants.json">
  <title><link linkend="book.json">JSON</link></title>

  <itemizedlist>
   <listitem>
    <simpara>
     <constant>JSON_ERROR_INVALID_PROPERTY_NAME</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>JSON_ERROR_UTF16</constant>
    </simpara>
   </listitem>
  </itemizedlist>
 </sect2>

 <sect2 xml:id="migration70.constants.libxml">
  <title><link linkend="book.libxml">LibXML</link></title>

  <itemizedlist>
   <listitem>
    <simpara>
     <constant>LIBXML_BIGLINES</constant>
    </simpara>
   </listitem>
  </itemizedlist>
 </sect2>
 
 <sect2 xml:id="migration70.constants.pcre">
  <title><link linkend="book.pcre">PCRE</link></title>

  <itemizedlist>
   <listitem>
    <simpara>
     <constant>PREG_JIT_STACKLIMIT_ERROR</constant>
    </simpara>
   </listitem>
  </itemizedlist>
 </sect2>

 <sect2 xml:id="migration70.constants.posix">
  <title><link linkend="book.posix">POSIX</link></title>

  <itemizedlist>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_AS</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_CORE</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_CPU</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_DATA</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_FSIZE</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_LOCKS</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_MEMLOCK</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_MSGQUEUE</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_NICE</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_NOFILE</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_NPROC</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_RSS</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_RTPRIO</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_RTTIME</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_SIGPENDING</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_STACK</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>POSIX_RLIMIT_INFINITY</constant>
    </simpara>
   </listitem>
  </itemizedlist>
 </sect2>
 
 <sect2 xml:id="migration70.constants.zlib">
  <title><link linkend="book.zlib">Zlib</link></title>

  <itemizedlist>
   <listitem>
    <simpara>
     <constant>ZLIB_ENCODING_RAW</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>ZLIB_ENCODING_DEFLATE</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>ZLIB_ENCODING_GZIP</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>ZLIB_FILTERED</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>ZLIB_HUFFMAN_ONLY</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>ZLIB_FIXED</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>ZLIB_RLE</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>ZLIB_DEFAULT_STRATEGY</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>ZLIB_BLOCK</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>ZLIB_FINISH</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>ZLIB_FULL_FLUSH</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>ZLIB_NO_FLUSH</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>ZLIB_PARTIAL_FLUSH</constant>
    </simpara>
   </listitem>
   <listitem>
    <simpara>
     <constant>ZLIB_SYNC_FLUSH</constant>
    </simpara>
   </listitem>
  </itemizedlist>
 </sect2>
</sect1>

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