How to use array_filter() and strlen() Functions In PHP

Using preg_split() and array_filter() Functions

The array_filter() function can be utilized along with a custom callback function to filter out the words with an even length.

PHP

<?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); 
  
?>

Output

to Geeks, computer portal

PHP Program to Print Even Length Words in a String

This article will show you how to print even-length words in a string using PHP. Printing even-length words from a given string is a common task that can be approached in several ways.