Question

我有一些＆＃34;代码＆＃34;我从数据库中获取并在php中的表中对它们进行排序。所有代码以第一个数组中的数字1开头，所有代码以第二个中的2开头直到9。

Array
(
[1] => Array
    (
        [0] => 1264
        [1] => 1264536
        [2] => 1264537
        [3] => 1264538
 )
[2] => Array
    (
        [0] => 213
        [1] => 21320
        [2] => 21321
        [3] => 21322          
)...

代码

function getCodes($codeEgr){

$oneTable = array();
$twoTable = array();
$threeTable = array();
$fourTable = array();
$fiveTable = array();
$sixTable = array();
$sevenTable = array();
$eightTable = array();
$nineTable = array();

foreach($codeEgr as $row)
{
        list($destination,$codeTegr,$price,$effectiveDate) = $row;
        $code = $codeTegr;            
        $first = substr($code,0,1);

        switch($first)
        {
                case 1:
                        $oneTable[] = $code;
                        break;
                case 2:
                        $twoTable[] = $code;
                        break;
                case 3:
                        $threeTable[] = $code;
                        break;
                case 4:
                        $fourTable[] = $code;
                        break;
                case 5:
                        $fiveTable[] = $code;
                        break;
                case 6:
                        $sixTable[] = $code;
                        break;
                case 7:
                        $sevenTable[] = $code;
                        break;
                case 8:
                        $eightTable[] = $code;
                        break;
                case 9:
                        $nineTable[] = $code;
                        break;
        }
}

$codeTable = array(1 => $oneTable,2 => $twoTable,3 => $threeTable,4 => $fourTable,5 => $fiveTable,
6 => $sixTable,7 => $sevenTable,8 => $eightTable,9 => $nineTable);
return $codeTable;

}

我想知道的是在这个数组中找到一个代码（）。例如，如果我有像156545这样的代码，我只搜索第一个数组中的代码而不搜索其他代码。如果我有像265456这样的代码我在第二个数组中搜索... 返回true或false后如果发现或不是

我不知道怎么做php我是循环的初学者

Answer 1

这可能是一个简单的方法：

$code= 123123;
$first = substr($code,0,1);

    switch($first)
    {
            case 1:
                    $key = array_search($code, $oneTable);
                    break;
            case 2:
                     $key = array_search($code, $twoTable);
                    break;
            and so on...
    }

Answer 2

我也为你重构了代码

function getCodes($codeEgr){
    $codes = array();

    foreach($codeEgr as $row)
    {
            list($destination,$codeTegr,$price,$effectiveDate) = $row;
            $code = $codeTegr;            
            $first = $code[0]; // get first digit of code string

            $codes[$first][] = $code;
    }

    return $codes;
}

function searchCode($codesArr, $code){
    $firstDigit = $code[0];

    $searchIn = (isset($codesArr[$firstDigit])) ? $codesArr[$firstDigit] : array();

    return array_search($code, $searchIn)
}

搜索数组中的特定代码

2 个答案: