php-doc-en/reference/strings/functions/ucwords.xml

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  <refentry id="function.ucwords">
   <refnamediv>
    <refname>ucwords</refname> 
    <refpurpose>
     Uppercase the first character of each word in a string
    </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>string</type><methodname>ucwords</methodname>
      <methodparam><type>string</type><parameter>str</parameter></methodparam>
     </methodsynopsis>
    <para>
     Returns a string with the first character of each word in
     <parameter>str</parameter> capitalized, if that character is
     alphabetic.
    </para>
    <simpara>
     The definition of a word is any string of characters
     that is immediately after a whitespace (These  are:
     space, form-feed, newline, carriage return, horizontal tab,
     and vertical tab).
    </simpara>
    <para>
     <example>
      <title><function>ucwords</function> example</title>
      <programlisting role="php">
<![CDATA[
<?php
$foo = 'hello world!';
$foo = ucwords($foo);             // Hello World! 

$bar = 'HELLO WORLD!';
$bar = ucwords($bar);             // HELLO WORLD!
$bar = ucwords(strtolower($bar)); // Hello World!
?>
]]>
      </programlisting>
     </example>
    </para>

    &note.bin-safe;

    <para>
     See also <function>strtoupper</function>,
     <function>strtolower</function> and <function>ucfirst</function>.
    </para>
   </refsect1>
  </refentry>

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