PHP - 二維數組表格格式

Question

我有一個電影的二維數組與密鑰，這是通過MySQL DBB通過phpMyAdmin生成的。

$films = array(
    array('title' => 'Batman Begins','yr' => '2005','genre' => 'Action, Adventure','plot' => 'After training with his mentor, Batman begins his w...') 
    array('title' => 'Ted 2','yr' => '2015','genre' => 'Comedy','plot' => 'Newlywed couple Ted and Tami-Lynn want to have a baby, but in order to...') 
    array('title' => 'Ted','yr' => '2012','genre' => 'Comedy, Fantasy','plot' => 'As the result of a childhood wish, John Bennett\'s teddy bear, ...') 
    array('title' => 'Interstellar','yr' => '2014','genre' => 'Adventure, Sci-Fi','plot' => 'A team of explorers travel through a wormhole in spa...') 
); 

我也得到了foreach循環，（劇情副本從粘貼切斷）遍歷二維數組，並將結果作爲返回表：

$out = ""; 
$out .= "<table>"; 
foreach($films as $key => $element){ 
    $out .= "<tr>"; 
    foreach($element as $subk => $subel){ 
    $out .= "<td>$subel</td>"; 
    } 
    $out .= "</tr>"; 
} 
$out .="<table>"; 

echo $out; 

而且從結果我的網頁上看到，顯示的是這樣的：

蝙蝠俠       動作，冒險     訓練結束後...

我怎麼能夠顯示鍵的列標題？我已經嘗試在主要內部製作另一個foreach循環，但返回的標題如下：titleyrgenreplottitleyrgenreplot等

我該如何在表格中正確設置格式，以便標題出現？

同樣只是一個小問題，而不是從phpMyAdmin將數據庫導出爲PHP數組，如何在MySQL數據庫表中進行更改時能夠更新PHP /網頁？

Answer 1

這裏是你將如何讓你的頭：

$headers="<thead><tr>"; 
foreach($films as $key => $element){ 
    $headers.= "<th>$key</th>"; 
    } 
$headers.= "</tr></thead>"; 

所以，你的代碼現在應該是這樣的：

$out = ""; 
$out .= "<tbody>"; 
$headers="<table><thead><tr>"; 
foreach($films as $key => $element){ 
    $headers.= "<th>$key</th>"; 
    $out .= "<tr>"; 
    foreach($element as $subk => $subel){ 
     $out .= "<td>$subel</td>"; 
    } 
    $out .= "</tr>"; 
} 
$out .="</tbody><table>"; 
$headers.= "</tr></thead>"; 

echo $headers; 
echo $out; 

Answer 2

爲顯示領域的頭，我們只需要遍歷1的鍵子陣列，並在循環遍歷整個結果之前在表格標題（<th>）中添加另一行（<tr>）。通常我們只顯示頭一次。

$out = ""; 
$out .= "<table>"; 
$out .= "<tr>"; 
foreach($films[0] as $key => $value) 
{ 
    $out .= "<th>".$key."</th>"; 
} 
$out .= "</tr>"; 
foreach($films as $key => $element){ 
    $out .= "<tr>"; 

    foreach($element as $subk => $subel){ 
    $out .= "<td>$subel</td>"; 
    } 
    $out .= "</tr>"; 
} 
$out .="<table>"; 

echo $out;