PHPの関数・メソッドの単語集 | 解答一覧

1. Returns the number of values in the map

1. Creates a new map using keys that aren't in another map

1. Creates a new map using a callable to determine which pairs to include

1. Returns the first pair in the map

1. Returns the value for a given key

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1. Determines whether the map contains a given key

1. Determines whether the map contains a given value

1. Creates a new map by intersecting keys with another map

1. Returns whether the map is empty

1. Returns a representation that can be converted to JSON

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1. Returns a set of the map's keys

1. Sorts the map in-place by key

1. Returns a copy

1. Returns the last pair of the map

1. Returns the result of applying a callback to each value

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1. Returns the result of adding all given associations

1. Returns a sequence containing all the pairs of the map

1. Associates a key with a value

1. Associates all key-value pairs of a traversable object or array

1. Reduces the map to a single value using a callback function

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1. Removes and returns a value by key

1. Reverses the map in-place

1. Returns a reversed copy

1. Returns the pair at a given positional index

1. Returns a subset of the map defined by a starting index and length

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