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@ 2017-01-24T19:26:41Z

<?php
$array = [
    'PHP',
    'Arrays',
    'Funções',
];
 
function hashtag($x){
    return "#".$x;
}

$y = array_map(function ($v, $k){
    return "#".$v.$k;
}, $array);

print_r($y);

Output
Performance
VLD
References
Branches

array_map: documentation ( source)
print_r: documentation ( source)

preferences:dark modelive preview

52.8 ms | 402 KiB | 5 Q