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PHP Array Exercises : Trim all the elements in an array using array_walk function

PHP Array: Exercise-35 with Solution

Write a PHP script to trim all the elements in an array using array_walk function.

Sample Solution:

PHP Code:

<?php
$colors = array( "Red ", " Green", "Black ", " White "); 
print_r($colors);
array_walk($colors, create_function('&$val', '$val = trim($val);')); 
print_r($colors);
?>

Sample Output:

Array                                                       
(                                                           
    [0] => Red                                              
    [1] =>  Green                                           
    [2] => Black                                            
    [3] =>  White                                           
)                                                           
Array                                                       
(                                                           
    [0] => Red                                              
    [1] => Green                                            
    [2] => Black                                            
    [3] => White                                            
)  

Flowchart:

Flowchart: PHP - Trim all the elements in an array using array_walk function

PHP Code Editor:

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Previous: Write a PHP program to sort an associative array (alphanumeric with case-sensitive data) by values.
Next: Write a PHP script to lower-case and upper-case, all elements in an array.

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