<?php declare(strict_types=1); $processor = compose( htmlentities(...), str_split(...), fn ($x) => array_map(strtoupper(...), $x), fn ($x) => array_filter($x, fn ($v) => $v != 'O'), ); $data = "Hello World!"; var_dump( $data, $processor($data), ); // polyfill function compose(...$calls): Closure { $next = fn ($data) => $data; foreach ($calls as $prev) { $next = fn ($data) => $prev($next($data)); } return $next; }
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Value for `_results` contains invalid data `array`