PHP Program to Print Even Length Words in a String

<?php 

function EvenLengthWords($str) { 
	
	// Split the string into an 
	// array of words 
	$words = explode(' ', $str); 

	// Iterate through each word and 
	// print if it has an even length 
	foreach ($words as $word) { 
		if (strlen($word) % 2 === 0) { 
			echo $word . " "; 
		} 
	} 
} 

// Driver code 
$str = "Welcome to Geeks for Geeks, A computer science portal"; 

EvenLengthWords($str); 

?>

<?php 

function isEvenLength($word) { 
	return strlen($word) % 2 === 0; 
} 

function EvenLengthWords($str) { 
	
	// Split the string into an 
	// array of words 
	$words = explode(' ', $str); 

	// Use array_filter to keep only 
	// even-length words 
	$evenLengthWords = array_filter($words, 'isEvenLength'); 

	// Print the even-length words 
	echo implode(' ', $evenLengthWords); 
} 

// Driver code 
$str = "Welcome to Geeks for Geeks, A computer science portal"; 

EvenLengthWords($str); 

?>

<?php 
function EvenLengthWords($str) { 
	
	// Split the string into an array of 
	// words using a regular expression 
	$words = preg_split('/\s+/', $str); 

	// Use array_filter to keep only 
	// even-length words 
	$evenLengthWords = array_filter($words, 
	function ($word) { 
			return strlen($word) % 2 === 0; 
		}); 

	// Print the even-length words 
	echo implode(' ', $evenLengthWords); 
} 

// Driver code 
$str = "Welcome to Geeks for Geeks, A computer science portal"; 

EvenLengthWords($str); 

?>

<?php
function printEvenLengthWords($inputString) {
    // Split the string into an array of words
    $words = str_word_count($inputString, 1);
    
    // Filter and print even-length words
    array_map(function($word) {
        if (strlen($word) % 2 == 0) {
            echo $word . "\n";
        }
    }, $words);
}

// Sample usage
$inputString = "This is a simple test string";
printEvenLengthWords($inputString);

?>