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

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.ucwords" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>ucwords</refname>
  <refpurpose>Uppercase the first character of each word in a string</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>string</type><methodname>ucwords</methodname>
   <methodparam><type>string</type><parameter>string</parameter></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>separators</parameter><initializer>" \t\r\n\f\v"</initializer></methodparam>
  </methodsynopsis>
  <para>
   Returns a string with the first character of each word in
   <parameter>string</parameter> capitalized, if that character is alphabetic.
  </para>
  <para>
   The definition of a word is any string of characters that is immediately
   after any character listed in the <parameter>separators</parameter> parameter
   (By default these are: space, form-feed, newline, carriage return, horizontal tab, and vertical tab).
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>string</parameter></term>
     <listitem>
      <para>
       The input string.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>separators</parameter></term>
     <listitem>
      <para>
       The optional <parameter>separators</parameter> contains the word separator characters.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns the modified string.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <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>

  <para>
   <example>
    <title><function>ucwords</function> example with custom delimiter</title>
    <programlisting role="php">
<![CDATA[
<?php
$foo = 'hello|world!';
$bar = ucwords($foo);             // Hello|world!

$baz = ucwords($foo, "|");        // Hello|World!
?>
]]>
    </programlisting>
   </example>
  </para>

  <para>
   <example>
    <title><function>ucwords</function> example with additional delimiters</title>
    <programlisting role="php">
     <![CDATA[
<?php
$foo = "mike o'hara";
$bar = ucwords($foo);                 // Mike O'hara

$baz = ucwords($foo, " \t\r\n\f\v'"); // Mike O'Hara
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

 <refsect1 role="notes">
  &reftitle.notes;
  &note.locale-single-byte;
  &note.bin-safe;
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>strtoupper</function></member>
    <member><function>strtolower</function></member>
    <member><function>ucfirst</function></member>
    <member><function>mb_convert_case</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
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