訪問元素

Question

在下面：

<?php 
$test = array(
    array("fName" => "Paul", "lName" => "Jones", "Age" => "31"), 
    array("fName" => "Mike", "lName" => "Hunt", "Age" => "3"), 
    array("fName" => "John", "lName" => "Doe", "Age" => "32") 
); 
?> 

<pre> <?php var_dump($test) ?> </pre> 

<?php 
foreach($test[0] as $key => $value) { 
    echo $value . " " ; 
} 

>

此輸出Paul Jones 31

我怎樣才能得到它的輸出只是名字fNames？

即Paul, Mike, John

Answer 1

foreach($test as $person) { 
    echo $person['fName'] . " " ; 
} 

// output: Paul Mike John 

Answer 2

foreach($test as $value) { 
    echo $value['fName'] . ", " ; 
} 

Answer 3

foreach ($test as $arr) 
    echo $arr['fName'] . ', '; 

Answer 4

你可能想要遍歷主陣列，而不是它的單個元素了。

foreach($test as $item) { 
    echo $item['fName']; 
}