<?php $input = array( 'abc' => 0, 'foo-bcd' => 1, 'foo-def' => 1, 'foo-xyz' => 0, ); $filtered = array_filter($input, function ($key) { return strpos($key, 'foo-') === 0; }, ARRAY_FILTER_USE_KEY); print_r($filtered);
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Value for `_results` contains invalid data `array`