如何使用 php 中的按钮删除 LIMIT？

Question

现在我想制作一个按钮，从我的 php 代码中删除 (LIMIT 3)，这样所有的行都会显示，而不是限制在 3

$query = "SELECT * FROM artikler ORDER BY 1 DESC LIMIT 3"; 
$result = $mysqli->query($query);


while ($row = $result->fetch_array(MYSQLI_ASSOC)){
    $titel = $row['art_titel'];
    $indhold = $row['art_indhold'];

echo "<article class='article-box'>";
echo "<div class='art-title'>$titel</div>";
echo "<div class='art-content'>$indhold</div>";
echo "<div class='art-view'><a href='pages/e-artikel.php?id=$row[art_id]'>Vis</a></div>";
echo "<div class='art-date'>".date_format(date_create($row["art_dato"]),'d/m/Y')."</div>";
echo "</article>";
}

我一直在考虑制作一个 IF ELSE 语句，但我不太确定我该怎么做，请详细解释我对 php 很陌生。

Answer 1

JS代码：

<script>
    function getRecords(type){
        location.href= 'action.php?limited='+type;
    }
</script>

HTML代码：

<input type='button' onclick="getRecords('all')" id='submit_button' name='showall' value='Show All'/>
<input type='button' onclick="getRecords('limited')" id='submit_button' name='showlimited' value='Show Top 3'/>

PHP代码：

$limited = $_GET['limited'];//As per code change it to GET
$condition = '';
if($limited == 'limited'){
    $condition = ' LIMIT 3';
}
$query = "SELECT * FROM artikler ORDER BY 1 DESC $condition";

Answer 2

添加一个HTML提交按钮：

<form method="post">
   <input type="submit" value="showAll" name="showAll" />
</form>

在PHP中获取按钮按下的代码 if/else:

if(isset($_POST['showAll'])){
     $query = "SELECT * FROM artikler ORDER BY 1 DESC"; 

}else{
     $query = "SELECT * FROM artikler ORDER BY 1 DESC LIMIT 3";
}

$result = $mysqli->query($query);
// rest of the code...

如何使用 php 中的按钮删除 LIMIT？

How do i remove the LIMIT with a button in php?

php

mysqli