如何将数组元素中的json数据打印为字符串

Question

我有一个数组

数组（ [0] => ["1","2","7","8","9"] ）

我想喜欢那个

数组（[0] => 1 [1] => 2 [2] => 7 [3] => 8 [4] => 9）

我尝试 foreach 循环

foreach($no_a as $key=>$val){ 

    foreach($val as $k=>$v){ 

        $newp_arr[] $v ;

    }

}

Answer 1

$result = $no_a[0];$new_result = array();for ($i=0; $i < 21 ; $i++) {&nbsp;&nbsp; &nbsp; # code...&nbsp; &nbsp; $num = $result[$i];&nbsp; &nbsp; if(is_numeric($num))&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $new_result[] = $result[$i];&nbsp; &nbsp; }}print_r($new_result);