<?php
$titulos = ["Nome", "Idade", "CPF", "Curso"];
$tamanhos = [20, null, 11, null];
$cabecalho = array_map(function ($titulo, $tamanho) {
return $tamanho ?
sprintf('%s(máximo %d', $titulo, $tamanho) : $titulo; }, $titulos, $tamanhos);
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