Array column in php multidimensional
(PHP 5 >= 5.5.0, PHP 7, PHP 8) Show array_column — Return the values from a single column in the input array Descriptionarray_column(array Parametersarray A multi-dimensional array or an array of objects from which to pull a column of values from. If an array of objects is provided, then public properties can be directly pulled. In order for protected or private properties to be pulled, the class must implement both the __get() and __isset() magic methods. column_key The column of values to return. This value may be an integer key of the column you wish to retrieve, or it may be a string key name for an associative array or property name. It may also be index_key
The column to use as the index/keys for the returned array. This value may be the integer key of the column, or it may be the string key name. The value is cast as usual for array keys (however, prior to PHP 8.0.0, objects supporting conversion to string were also allowed). Return ValuesReturns an array of values representing a single column from the input array. Changelog
ExamplesExample #1 Get the column of first names from a recordset
The above example will output: Array ( [0] => John [1] => Sally [2] => Jane [3] => Peter ) Example #2 Get the column of last names from a recordset, indexed by the "id" column
The above example will output: Array ( [2135] => Doe [3245] => Smith [5342] => Jones [5623] => Doe ) Example #3 Get the column of usernames from the public "username" property of an object
__construct(string $username) The above example will output: Array ( [0] => user 1 [1] => user 2 [2] => user 3 ) Example #4 Get the column of names from the private "name" property of an object using the magic __get() method.
__construct(string $name) The above example will output: Array ( [0] => Fred [1] => Jane [2] => John ) If __isset() is not provided, then an empty array will be returned. mohanrajnr at gmail dot com ¶ 7 years ago
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$indexkey === null) { $result[] = $val; } till at etill dot net ¶ 7 years ago
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array_intersect_key($data, $keep); Anonymous ¶ 6 years ago
$index_key !== null) { Hiranmoy Chatterjee ¶ 5 months ago
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$output; Sbastien ¶ 4 months ago
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= array( katrinaelaine6 at gmail dot com ¶ 5 years ago
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$index_key === NULL || !isset($v[$index_key])) { robsonvnasc at gmail dot com ¶ 5 years ago
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What is multidimensional array in PHP?A multidimensional array is an array containing one or more arrays. PHP supports multidimensional arrays that are two, three, four, five, or more levels deep. However, arrays more than three levels deep are hard to manage for most people.
What is the multidimensional array?A multidimensional array in MATLAB® is an array with more than two dimensions. In a matrix, the two dimensions are represented by rows and columns. Each element is defined by two subscripts, the row index and the column index.
How get key of multidimensional array in PHP?Retrieving Values: We can retrieve the value of multidimensional array using the following method:. Using key: We can use key of the associative array to directly retrieve the data value. ... . Using foreach loop: We can use foreach loop to retrieve value of each key associated inside the multidimensional associative array.. What is multidimensional array example?A multi-dimensional array is an array with more than one level or dimension. For example, a 2D array, or two-dimensional array, is an array of arrays, meaning it is a matrix of rows and columns (think of a table). A 3D array adds another dimension, turning it into an array of arrays of arrays.
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