For multidimensional arrays, combine array_search with array_column. multi_array_search.php <?php $users = [ ["id" => 1, "name" => "Alice"], ["id" => 2, "name" => "Bob"], ["id" => 3, "name" => "Charlie"] ]; $key
使用array_column 和in_array:如果你需要在一个多维数组中查找一个值,可以使用 array_column 函数从数组中提取一个特定列,然后使用 in_array 函数检查该列中的值是否存在。$multiDimensionalArray = array( array('id' => 1, 'name' => 'value1'), array('id' => 2, 'name' => 'value2'), array(...
You might know how to find a value in an array or in a one dimensional array, but the same technique doesn’t work in a multidimensional array. So, you’re looking for the solution. Solution: Example: [php]<?php function multi_array_search($search_for, $search_in) { foreach ($sear...
function in_multidimensional_array($needle, $haystack) { foreach ($haystack as $value) { if (is_array($value) && array_diff_assoc($needle, $value) === []) { return true; } } return false; } $array = [ ['id' => 1, 'name' => 'Alice'], ['id' => 2, 'name' => 'Bob...
$sortColumns (array)– The array keys to sort after and the respective PHP sort flags as an associative array. Returns: Whether sorting was successful or not. Return type: bool This method sorts the elements of a multidimensional array by the values of one or more keys in a hierarchical wa...
multidimensional_array.php <?php $users = [ 'user1' => ['name' => 'Alice', 'age' => 25], 'user2' => ['name' => 'Bob', 'age' => 30], 'user3' => ['name' => 'Charlie', 'age' => 35] ]; $userKeys = array_keys($users); print_r($userKeys); ...
In PHP7+ to find if a value is set in a multidimensional array with a fixed number of dimensions, simply use the Null Coalescing Operator: ?? So for a three dimensional array where you are not sure about any of the keys actually existing ...
phparraysmultidimensional-array 有用关注收藏 回复 阅读481 2 个回答 得票最新 社区维基1 发布于 2023-01-12 如果您知道要搜索哪一列,则可以使用 array_search() 和 array_column(): $userdb = Array ( (0) => Array ( ('uid') => '100', ('name') => 'Sandra Shush', ('url') => 'url...
multidimensional array to single array $array=[1=>[2,5=>[4,2],[7,8=>[3,6]],5],4];$arr=[];array_walk_recursive($array, function($k){global $arr; $arr[]=$k;});print_r($arr);OutputArray ( [0] => 2 [1] => 4 [2] => 2 [3] => 7 [4] => 3 [5] => 6 [...
A PHP array manipulation library. Compatible with PHP 7+ & PHP 8+ \Arrayy\Type\StringCollection::create(['Array', 'Array'])->unique()->append('y')->implode() // Arrayy Installation Multidimensional ArrayAccess PhpDoc @property checking OO and Chaining Collections Pre-Defined Typified Colle...