PHP array helpers

PHP helper class to provide useful array functions.

• License
• Author
• Requirements
• Installation
• Usage

License

This project is open source and available under the MIT License.

Author

• Bayfront Media homepage
• Bayfront Media GitHub

Requirements

• PHP ^8.0 (Tested up to 8.4)

Installation

composer require bayfrontmedia/php-array-helpers

Usage

• dot
• undot
• set
• has
• get
• pluck
• forget
• except
• exceptValues
• only
• missing
• isMissing
• multisort
• numericMultisort
• renameKeys
• order
• getRandomItems
• query
• getAnyValues
• hasAnyValues
• hasAllValues
• ensureHas

---

dot

Description:

Converts a multidimensional array to a single depth "dot" notation array, optionally prepending a string to each array key.

The key values will never be an array, even if empty. Empty arrays will be dropped.

Parameters:

• $array (array): Original array
• $prepend = '' (string): String to prepend

Returns:

• (array)

Example:

$array = [
    'name' => [
        'first_name' => 'John',
        'last_name' => 'Doe'
    ],
    'hobbies' => [ // This empty array will be dropped

    ]
];

$dot = Arr::dot($array);

---

undot

Description:

Converts array in "dot" notation to a standard multidimensional array.

Parameters:

• $array (array): Array in "dot" notation

Returns:

• (array)

Example:

$array = [
    'name.first_name' => 'John',
    'name.last_name' => 'Doe'
];

$undot = Arr::undot($array);

---

set

Description:

Set an array item to a given value using "dot" notation.

Parameters:

• $array (array): Original array
• $key (string): Key to set in "dot" notation
• $value (mixed): Value of key

Returns:

• (void)

Example:

$array = [
    'name' => [
        'first_name' => 'John',
        'last_name' => 'Doe'
    ],
];

Arr::set($array, 'name.middle_name', 'Middle');

---

has

Description:

Checks if array key exists and not null using "dot" notation.

Parameters:

• $array (array): Original array
• $key (string): Key to check in "dot" notation

Returns:

• (bool)

Example:

$array = [
    'name' => [
        'first_name' => 'John',
        'last_name' => 'Doe'
    ],
];

if (Arr::has($array, 'name.first_name')) {
    // Do something
}

---

get

Description:

Get an item from an array using "dot" notation, returning an optional default value if not found.

Parameters:

• $array (array): Original array
• $key (string): Key to return in "dot" notation
• $default = NULL (mixed): Default value to return

Returns:

• (mixed)

Example:

$array = [
    'name' => [
        'first_name' => 'John',
        'last_name' => 'Doe'
    ],
];

echo Arr::get($array, 'name.first_name');

---

pluck

Description:

Returns an array of values for a given key from an array using "dot" notation.

Parameters:

• $array (array): Original array
• $value (string): Value to return in "dot" notation
• $key = NULL (string|null): Optionally how to key the returned array in "dot" notation

Returns:

• (array)

Example:

$array = [
    [
        'user_id' => 110,
        'username' => 'John',
        'active' => true
    ],
    [
        'user_id' => 111,
        'username' => 'Jane',
        'active' => true
    ]
];

$array = Arr::pluck($array, 'username', 'user_id');

---

forget

Description:

Remove a single key, or an array of keys from a given array using "dot" notation.

Parameters:

• $array (array): Original array
• $keys (string|array): Key(s) to forget in "dot" notation

Returns:

• (void)

Example:

$array = [
    'name' => [
        'first_name' => 'John',
        'last_name' => 'Doe'
    ],
];

Arr::forget($array, 'name.last_name');

---

except

Description:

Returns the original array except given key(s).

Parameters:

• $array (array): Original array
• $keys (string|array): Key(s) to remove

Returns:

• (array)

Example:

$array = [
    'user_id' => 110,
    'username' => 'John',
    'active' => true
];

$array = Arr::except($array, 'active');

---

exceptValues

Description:

Returns the original array except given value(s).

Parameters:

• $array (array): Original array
• $values (string|array): Values(s) to remove

Returns:

• (array)

Example:

$array = [
    'John',
    'Jane',
    'Bob'
];

$array = Arr::exceptValues($array, 'John');

---

only

Description:

Returns only desired key(s) from an array.

Parameters:

• $array (array): Original array
• $keys (string|array): Key(s) to return

Returns:

• (array)

Example:

$array = [
    'user_id' => 110,
    'username' => 'John',
    'active' => true
];

$array = Arr::only($array, 'username');

---

missing

Description:

Returns array of missing keys from the original array, or an empty array if none are missing.

Parameters:

• $array (array): Original array
• $keys (array): Key(s) to check

Returns:

• (array)

Example:

$array = [
    'user_id' => 110,
    'username' => 'John',
    'active' => true
];

$missing = Arr::missing($array, [
    'active',
    'last_login'
]);

---

isMissing

Description:

Checks if keys are missing from the original array.

Parameters:

• $array (array): Original array
• $keys (array): Key(s) to check

Returns:

• (bool)

Example:

$array = [
    'user_id' => 110,
    'username' => 'John',
    'active' => true
];

if (Arr::isMissing($array, [
    'active',
    'last_login'
])) {
    // Do something
}

---

multisort

Description:

Sort a multidimensional array by a given key in ascending (optionally, descending) order.

Parameters:

• $array (array): Original array
• $key (string): Key name to sort by
• $descending = false (bool): Sort descending

Returns:

• (array)

Example:

$clients = [
    [
        'first_name' => 'John',
        'last_name' => 'Doe'
    ],
    [
        'first_name' => 'Jane',
        'last_name' => 'Doe'
    ]
];

$sorted = Arr::multisort($clients, 'first_name');

---

numericMultisort

Description:

Sort a numerically indexed array of multidimensional arrays by a given key in ascending (optionally, descending) order.

Parameters:

• $array (array): Numerically indexed array of multidimensional arrays
• $key (string): Key name to sort by in dot notation
• $descending = false (bool): Sort descending

Returns:

• (array)

Example:

$contacts = [
    [
        'id' => 1,
        'contact' => [
            'name' => 'James'
        ]
    ],
    [
        'id' => 2,
        'contact' => [
            'name' => 'Bob'
        ]
    ],
    [
        'id' => 3,
        'contact' => [
            'name' => 'Carl'
        ]
    ]
];

$sorted = Arr::numericMultisort($contacts, 'contact.name');

---

renameKeys

Description:

Rename array keys while preserving their order.

Parameters:

• $array (array): Original array
• $keys (array): Key/value pairs to rename

Returns:

• (array)

Example:

$user = [
    'UserID' => 5,
    'UserEmail' => 'name@example.com',
    'UserGroup' => 'Administrator'
];

$renamed = Arr::renameKeys($user, [
    'UserID' => 'id',
    'UserEmail' => 'email',
    'UserGroup' => 'group'
]);

---

order

Description:

Order an array based on an array of keys.

Keys from the $order array which do not exist in the original array will be ignored.

Parameters:

• $array (array): Original array
• $order (array): Array of keys in the order to be returned

Returns:

• (array)

Example:

$address = [
    'street' => '123 Main St.',
    'state' => 'IL',
    'zip' => '60007',
    'city' => 'Chicago'
];

$order = [
    'street',
    'city',
    'state',
    'zip',
    'country'
];

$address = Arr::order($address, $order);

The above example will return the following array:

Array
(
    [street] => 123 Main St.
    [city] => Chicago
    [state] => IL
    [zip] => 60007
)

---

getRandomItems

Description:

Get random items from array.

If $count is greater than or equal to the number of items on the array, the original array is returned in random order.

Parameters:

• $array (array): Original array
• $count (int): Number of random items to return

Returns:

• (array)

Example:

$array = [
    'John',
    'Jane',
    'Bob'
];

$array = Arr::getRandomItems($array, 1);

---

query

Description:

Convert array into a query string.

Parameters:

• $array (array): Original array

Returns:

• (string)

Example:

$array = [
    'first_name' => 'Jane',
    'last_name' => 'Doe'
];

echo Arr::query($array);

---

getAnyValues

Description:

Return an array of values which exist in a given array.

Parameters:

• $array (array)
• $values (array)

Returns:

• (array)

Example:

$array = [
    'name' => [
        'John',
        'Dave'
    ],
];

$existing_values = Arr::getAnyValues($array['name'], [
    'John',
    'Jane'
]);

---

hasAnyValues

Description:

Do any values exist in a given array.

Parameters:

• $array (array)
• $values (array)

Returns:

• (bool)

Example:

$array = [
    'name' => [
        'John',
        'Dave'
    ],
];

if (Arr::hasAnyValues($array['name'], [
    'John',
    'Jane'
])) { 
     // Do something
}

---

hasAllValues

Description:

Do all values exist in a given array.

Parameters:

• $array (array)
• $values (array)

Returns:

• (bool)

Example:

$array = [
    'name' => [
        'John',
        'Dave'
    ],
];

if (Arr::hasAllValues($array['name'], [
    'John',
    'Jane'
])) { 
     // Do something
}

---

ensureHas

Description:

Ensure a numerically indexed array of arrays has a given item based on a unique key.

Parameters:

• $array (array)
• $item (array): Item to exist
• $unique_key (string): Unique array key

Returns:

• (bool)

Example:

$contacts = [
    [
        'id' => 1,
        'contact' => [
            'name' => 'James'
        ]
    ],
    [
        'id' => 2,
        'contact' => [
            'name' => 'Bob'
        ]
    ],
    [
        'id' => 3,
        'contact' => [
            'name' => 'Carl'
        ]
    ]
];

$item = [
    'id' => 2,
    'contact' => [
        'name' => 'Bob'
    ]
];

$contacts = Arr::ensureHas($contacts, $item, 'id');