PHP String - ucwords() Function

The PHP ucwords() function returns a string with the first character of each word in string capitalized, if that character is alphabetic. For this function, a word is a string of characters that are not listed in the separators parameter. By default, these are: space, horizontal tab, carriage return, newline, form-feed and vertical tab.

Syntax

ucwords(string, separators)

Parameters

Return Value

Returns the modified string.

Example:

The example below shoes the usage of ucwords() function.

<?php
$str1 = "hello world!";
echo ucwords($str1)."\n";

$str2 = "HELLO WORLD!";
echo ucwords($str2)."\n";
echo ucwords(strtolower($str2))."\n";
?>

The output of the above code will be:

Hello World!
HELLO WORLD!
Hello World!

Example:

Consider one more example where custom separators are used with ucwords() function.

<?php
//"|" as separator
$str1 = "hello|world!";
echo ucwords($str1, "|")."\n";

//adding ' as separator along 
//with default separators
$str2 = "o'reilly media";
echo ucwords($str2, " \t\r\n\f\v'")."\n";
?>

The output of the above code will be:

Hello|World!
O'Reilly Media