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@ 2017-09-21T10:58:37Z

<?php

$a = array(
    'hello' => array('facebook', 'instagram                                       ' ),
    'ok' => 'string'
);
 
 array_walk_recursive($a, function(&$value){
   // $value = trim($value);
});
 
// OUTPUT
  print_r($a); // Gives: 1

Output
Performance
VLD
References
Branches

print_r: documentation ( source)
array_walk_recursive: documentation ( source)

preferences:dark modelive preview

60.89 ms | 402 KiB | 5 Q