(PHP 4, PHP 5, PHP 7, PHP 8)
ucwords — Uppercase the first character of each word in a string
$string, string $separators = " \t\r\n\f\v"): string
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.
stringThe input string.
separators
The optional separators contains the word separator characters.
Returns the modified string.
Example #1 ucwords() example
<?php
$foo = 'hello world!';
$foo = ucwords($foo); // Hello World!
$bar = 'HELLO WORLD!';
$bar = ucwords($bar); // HELLO WORLD!
$bar = ucwords(strtolower($bar)); // Hello World!
?>
Example #2 ucwords() example with custom delimiter
<?php
$foo = 'hello|world!';
$bar = ucwords($foo); // Hello|world!
$baz = ucwords($foo, "|"); // Hello|World!
?>
Example #3 ucwords() example with additional delimiters
<?php
$foo = "mike o'hara";
$bar = ucwords($foo); // Mike O'hara
$baz = ucwords($foo, " \t\r\n\f\v'"); // Mike O'Hara
?>
Note: This function is locale-aware and will handle input according to the currently set locale. However, it only works on single-byte character sets. If you need to use multibyte characters (most non-western-European languages) look at the multibyte or intl extensions instead.
Note: This function is binary-safe.