php二维数组怎么去掉某个字段的元素

foreach ($二维数组变量名 as $k => $v){
	//循环体语句块;
}

unset($二维数组变量名[$k][指定字段名]);

<?php
header(&#39;content-type:text/html;charset=utf-8&#39;);   
$arr=array(
  array(
    &#39;id&#39; => 1,
    &#39;name&#39; => "小明",
    &#39;score&#39; => 85
  ),
  array(
    &#39;id&#39; => 2,
    &#39;name&#39; => "小华",
    &#39;score&#39; => 92
  ),
  array(
    &#39;id&#39; => 3,
    &#39;name&#39; => "霄晓",
    &#39;score&#39; => 100
  ),
  array(
    &#39;id&#39; => 4,
    &#39;name&#39; => "萧洁",
    &#39;score&#39; => 99
  ),
  array(
    &#39;id&#39; => 5,
    &#39;name&#39; => "赵峰",
    &#39;score&#39; => 96
  )
);
var_dump($arr);
$score=array_column($arr, &#39;score&#39;,"score");
foreach ($arr as $k1 => $v1){
	
	    unset($arr[$k1]["score"]);

}
echo "去掉二维数组中指定字段（列）的元素后:";
var_dump($arr);
?>