PHP 数组中不区分大小写的搜索

Question

我想搜索 Mobile 或 mobile legend 或 mobile。它应该返回两个数组。但是我的代码只有在我搜索完全相同的词时才有效。请帮忙。$resutls = [];$words = ['mobile', 'Mobile Legend', 'Mobile', 'mobile legend']; foreach ($items as $item) {   if(in_array($item['CategoryName'], $words)) {      $results[] = $item;   }}print_r($results);[0] => Array        (            [id] => 1            [Name] => Mobile Game,            [CategoryName] => Mobile Legend        )     [1] => Array        (            [id] => 2            [Name] => Laptop Game            [CategoryName] => Mobile        )

Answer 1

这可能是您正在寻找的：

<?php

$searchTerms = ['mobile', 'Mobile Legend', 'Mobile', 'mobile legend'];

$data = [

  [

    'id' => 1,

    'Name' => "Mobile Game",

    'CategoryName' => "Mobile Legend"

  ],

  [

    'id' => 2,

    'Name' => "Laptop Game",

    'CategoryName' => "Mobile"

  ],

  [

    'id' => 3,

    'Name' => "Something",

    'CategoryName' => "Console"

  ]

];

$output = [];

foreach ($searchTerms as $searchTerm) {

  $pattern = sprintf('/%s/i', preg_quote($searchTerm));

  array_walk($data, function($entry, $index) use ($pattern, &$output) {

    if (!array_key_exists($index, $output)

      && (preg_match($pattern, $entry['Name'])

        || preg_match($pattern, $entry['CategoryName']))) {

      $output[$index] = $entry;

    }

  });

}

print_r($output);

明显的输出是：

Array

(

    [0] => Array

        (

            [id] => 1

            [Name] => Mobile Game

            [CategoryName] => Mobile Legend

        )

    [1] => Array

        (

            [id] => 2

            [Name] => Laptop Game

            [CategoryName] => Mobile

        )

)