In PHP, what are some alternative ways to exclude specific keys from being processed in a foreach loop without using continue statements?

When iterating over an array using a foreach loop in PHP, if you want to exclude specific keys from being processed without using continue statements, you can utilize the array_diff_key() function to filter out those keys. This function takes two arrays as arguments - the original array and an array of keys to exclude. It returns an array containing all the key/value pairs from the original array except for those with keys present in the exclusion array. 

$array = ['a' => 1, 'b' => 2, 'c' => 3, 'd' => 4];
$exclude_keys = ['b', 'd'];

$filtered_array = array_diff_key($array, array_flip($exclude_keys));

foreach ($filtered_array as $key => $value) {
    echo $key . ': ' . $value . PHP_EOL;
}

Keywords

PHP foreach loop array_keys array_diff array_intersect

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