php-doc-en/reference/gmp/functions/gmp-cmp.xml

<?xml version="1.0" encoding="iso-8859-1"?>
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  <refentry id="function.gmp-cmp">
   <refnamediv>
    <refname>gmp_cmp</refname>
    <refpurpose>Compare numbers</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>int</type><methodname>gmp_cmp</methodname>
      <methodparam><type>resource</type><parameter>a</parameter></methodparam>
      <methodparam><type>resource</type><parameter>b</parameter></methodparam>
     </methodsynopsis>
    <para>
     Returns a positive value if <literal>a &gt; b</literal>, zero if
     <literal>a = b</literal> and a negative value if <literal>a &lt;
     b</literal>.
    </para>
    <example>
     <title><function>gmp_cmp</function> example</title>
     <programlisting role="php">
<![CDATA[
<?php
    $cmp1 = gmp_cmp("1234", "1000"); // greater than
    $cmp2 = gmp_cmp("1000", "1234"); // less than
    $cmp3 = gmp_cmp("1234", "1234"); // equal to

    echo "$cmp1 $cmp2 $cmp3\n";
?>
]]>
     </programlisting>
     <para>
      The printout of the above program will be:
     </para>
     <screen>
<![CDATA[
1 -1 0
]]>
     </screen>
    </example>
   </refsect1>
  </refentry>

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