<?php function counter($count_size) { $size = $count_size; $i = 0; return function() use (&$i, $size) { $i++; print "$i / $size"; print PHP_EOL; }; } $counter = counter(1000); for ($i = 0; $i < 1000; $i++) { $counter(); }
結果:
1 / 1000 2 / 1000 ・・・ 1000 / 1000