Question

How to lower-case all elements in an array with PHP

Answer 1

$arr = array("PHP", "Java", "Python", "C++"); 

$arr = array_map('strtolower', $arr);

print_r($arr);

 
 
/*
run:
 
Array ( [0] => php [1] => java [2] => python [3] => c++ ) 
  
*/

 

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