多维数组以在 php 中转换为字符串

Question

Array ( [11] => Array ( [0] => A [1] => Attempt ) [ 12] => Array ( [0] => 0 [1] => None ) [ 13] => Array ( [0] => 0 [1] => None ) [ 14] => Array ( [0] => 0 [1] => None ) [ 15] => Array ( [0] => 0 [1] => None ) [ 16] => Array ( [0] => 0 [1] => None ) )这是我的数组，但我想要以下 STRING 格式：11=>A=>Attempt,12=>0=>None,13=>0=>None,14=>0=>None,15=>0=>None,16=>0=>None  1. $keys=array_keys($total_answer)   2.     for($i=0;$i<count($keys);$i++)    3.   {      4.      for($j=0;$j<count($total_answer[$keys[$i]]);$j++)        5.    {          6.     echo $total_answer[$keys[$i]][$j]           7. //Here I am getting confuse to make string Thank You In Advance:)

Answer 1

一种方法，

<?php

$array = array ( "11" => array ( "0" => "A" ,"1" => "Attempt" ) ,"12" => array ( "0" => 0, "1" => "None" ) ,"13" => array ( "0" => 0, "1" => "None" ) ,"14" => array ( "0" => 0 ,"1" => "None" ), "15" => array ( "0" => 0, "1" => "None" ), "16" => array ( "0" => 0, "1" => "None" ) );

foreach($array as $key=>$value){

    $expected[] = $key.'=>'.$value[0].'=>'.$value[1];

}

echo implode(',',$expected);

?>

工作演示：https ://3v4l.org/TDb0A

Answer 2

一个foreach就够了

    $out = [];

    foreach ($total_answer as $k=>$v)

    {

        array_unshift($v, $k);

        $out[] = implode('=>', $v);

    }

    echo implode(',', $out);