PHP | ucwords() Function

The ucwords() function is a built-in function in PHP and is used to convert the first character of every word in a string to upper-case.

Syntax:

string ucwords ( $string, $separator )

Parameter: This function accepts two parameters out of which first is compulsory and second is optional. Both of the parameters are explained below:

$string: This is the input string of which you want to convert the first character of every word to uppercase.
$separator: This is an optional parameter. This parameter specifies a character which will be used a separator for the words in the input string. For example, if the separator character is ‘|’ and the input string is “Hello|world” then it means that the string contains two words “Hello” and “world”.

Return value: This function returns a string with the first character of every word in uppercase.

Examples:

Input : $str  = "Geeks for geeks"
        ucwords($str)
Output: Geeks For Geeks

Input : $str  = "going BACK he SAW THIS"
        ucwords($str)
Output: Going BACK He SAW THIS

Below programs illustrate the ucwords() function in PHP:

Program 1:

<?php 
  
// original string 
$str  = "Geeks for geeks"; 
  
// string after converting first character 
// of every word to uppercase 
$resStr = ucwords($str); 
  
print_r($resStr); 
  
?> 

Output:

Geeks For Geeks

Program 2:

<?php 
  
// original string 
$str = "Geeks#for#geeks #PHP #tutorials"; 
  
$separator = '#'; 
  
// string after converting first character 
// of every word to uppercase 
$resStr = ucwords($str, $separator); 
  
print_r($resStr); 
  
?> 

Output:

Geeks#For#Geeks #PHP #Tutorials

Note: You should not use the character ‘$’ as a separator because any name in PHP that starts with $ is considered as a variable name. So, your program may give an error that variable not found.

Reference:
http://php.net/manual/en/function.ucwords.php

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