PHP获取二维数组中某一列的值集合

$arr=array(

1=>array(

'id'=> 5,

'name'=>'张三'

),

2=>array(

'id'=> 6,

'name'=>'李四'

)

);

$arr2=array(

0=>'张三',

1=>'李四'

);

foreach($arras$key=>$value) {

$arr2[] =$value['name'];

}

$arr2=array_map('array_shift',$arr);

$arr2=array_map('reset',$arr);

$arr2=array_map('end',$arr);

$arr2=array_reduce($arr, create_function('$result, $v','$result[] = $v["name"];return $result;'));

$arr2= array_column($arr,'name');

<?php

//使用for循环遍历

$arr2=array(array("张三","20","男"),array("李四","25","男"),array("王五","19","女"),array("赵六","25","女"));

echo"<table;

for($i=0;$i<4;$i++){

echo"<tr>";

for($j=0;$j<3;$j++){

echo"<td>";

echo$arr2[$i][$j];

echo"</td>";

}

echo"</tr>";

echo"<br>";

}

echo"</table>";

?>

//使用foreach遍历

<?php

$arr=array('one'=>array('name'=>'张三','age'=>'23','sex'=>'男'),

'two'=>array('name'=>'李四','age'=>'43','sex'=>'女'),

'three'=>array('name'=>'王五','age'=>'32','sex'=>'男'),

'four'=>array('name'=>'赵六','age'=>'12','sex'=>'女'));

foreach($arras$k=>$val){

echo$val['name'].$val['age'].$val['sex']."<br>";

}

echo"<p>";

?>

<?php

$arr=array('one'=>array('name'=>'张三','age'=>'23','sex'=>'男'),

'two'=>array('name'=>'李四','age'=>'43','sex'=>'女'),

'three'=>array('name'=>'王五','age'=>'32','sex'=>'男'),

'four'=>array('name'=>'赵六','age'=>'12','sex'=>'女'));

foreach($arras$key=>$value){

foreach($valueas$key2=>$value2){

echo$value2;

}

echo"<br>";

}

?>