方法1:使用 array_map 和serialize function array_unique_multidimensional($array) { $serialized = array_map('serialize', $array); $unique = array_unique($serialized); return array_intersect_key($array, $unique); } $multidimensionalArray = [ ['id' => 1, 'name' => 'A'], ['id' => 2...
I found the simplest way to "unique" multidimensional arrays as follows:<?php$array = array( 'a' => array(1, 2), 'b' => array(1, 2), 'c' => array(2, 2), 'd' => array(2, 1), 'e' => array(1, 1),);$array = array_map('json_encode', $array);$array = array_...
// convert a multidimensional array to url save and encoded string // usage: string Array2String( array Array ) function Array2String($Array) { $Return=''; $NullValue="^^^"; foreach ($Array as $Key => $Value) { if(is_array($Value)) $ReturnValue='^^array^'.Array2String($Value...
<?php // Define a function to filter unique values based on a specified key in a multidimensional array function unique_array($my_array, $key) { $result = array(); // Initialize an empty array to store the unique values $i = 0; // Initialize a counter $key_array = array(); //...
collect.js 是一个方便且无依赖的包装器,用于处理数组和对象。设计灵感来源于 Laravel Collection。 安装 collect.js 是一个标准的 npm package,所以你可以直接通过下面的命令安装: npm install collect.js --save 使用 在 JS 中,有一些比较是和 PHP 比较是不一样的,在默认情况下,JS 会偏向于严格意义的比较,...
<?php function super_unique($array,$key) { $temp_array = []; foreach ($array as &$v) { if (!isset($t...
Using array_unique() in multidimensional arrays can be tricky. Here's how to remove duplicate sub-arrays:$arr = [ ['name' => 'John', 'age' => 25], ['name' => 'John', 'age' => 25], ['name' => 'Jane', 'age' => 30] ]; $new_array = array_map('unserialize', array_...
PHP form with captcha and file upload Gerrit Broekhuis Aug 9, 2021 PHP Replies 4 Views 323 Aug 19, 2021 Gerrit Broekhuis Locked Question Convert Indexed Multidimensional Array to Multidimensional Array with Key Value pair 3 waubain Jul 7, 2021 PHP Replies 2 Views 265 Jul 8, 2021...
Write a PHP script to merge two commas separated lists with unique value only. Sample Solution: PHP Code: <?php// Define two comma-separated lists as strings$list1="4, 5, 6, 7";$list2="4, 5, 7, 8";// Combine both lists with unique values only// Explode the strings into array...
Previous: Write a PHP program to get a sorted array without preserving the keys. Next: Write a PHP function to find unique values from multidimensional arrays and flatten them in 0 depth.What is the difficulty level of this exercise? Easy Medium Hard ...