Question

How to upper-case all elements in an array in PHP

Answer 1

$arr = array("php", "c#", "c++", "c", "java");
 
$arr = array_map('strtoupper', $arr);

array_walk($arr, '_print');

function _print($value)
{
    echo "$value<br />\n";
}


/*
run: 

PHP
C#
C++
C
JAVA

*/

 

70+ SQL courses for beginners and professionals