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Edit File: RetrievesMultipleKeys.php

<?php

namespace Illuminate\Cache;

trait RetrievesMultipleKeys
{
    /**
     * Retrieve multiple items from the cache by key.
     *
     * Items not found in the cache will have a null value.
     *
     * @param  array  $keys
     * @return array
     */
    public function many(array $keys)
    {
        $return = [];

$keys = collect($keys)->mapWithKeys(function ($value, $key) {
            return [is_string($key) ? $key : $value => is_string($key) ? $value : null];
        })->all();

foreach ($keys as $key => $default) {
            $return[$key] = $this->get($key, $default);
        }

return $return;
    }

/**
     * Store multiple items in the cache for a given number of seconds.
     *
     * @param  array  $values
     * @param  int  $seconds
     * @return bool
     */
    public function putMany(array $values, $seconds)
    {
        $manyResult = null;

foreach ($values as $key => $value) {
            $result = $this->put($key, $value, $seconds);

$manyResult = is_null($manyResult) ? $result : $result && $manyResult;
        }

return $manyResult ?: false;
    }
}

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