表生成器

时间:2014-09-29 03:43:45

标签: php html

您好我有关于生成行和列的问题。我想问一下如何才能在一个页面上制作它。这就是我尝试过的。

HTML:

<html>
<head>
<title>Table Generator</title>

<body>
<center><h1>Generate Your Table</h1></center>

<div id="div1">
<center><h4>Enter number of Row and Column</h4>
    <form action="get_table/execute_table.php" method="POST">
    <label for="title">Row</label>
    <input type="text" name="title1" placeholder="Row">
    <br>
    <label for="title">Column</label>
    <input type="text" name="title2" placeholder="Column">
    <br>
    <input type="submit" name="submit" value="Generate Table"> </center>
    </form>

</div>



</body>

PHP:

<?php

$row = $_POST['title1'];
$column = $_POST['title2'];

echo "<table border='1'>"; 

for($tr=1;$tr<=$row;$tr++){ 

echo "<tr>"; 
    for($td=1;$td<=$column;$td++){ 
           echo "<td>row: ".$tr." column: ".$td."</td>"; 
    } 
echo "</tr>"; 
} 

echo "</table>"; 
?>

是的,它已完全运行但我只想在1页中使用它。感谢。

3 个答案:

答案 0 :(得分:3)

通常情况下,如果您希望它在同一页面上,则只需省略action=""及其值。

然后,当然,将php进程放在与表单相同的页面中:

<div id="div1">
<center><h4>Enter number of Row and Column</h4>
    <form action="" method="POST">
    <!--      ^^ no more value, well you could just put the same filename -->
    <label for="title">Row</label>
    <input type="text" name="title1" placeholder="Row">
    <br>
    <label for="title">Column</label>
    <input type="text" name="title2" placeholder="Column">
    <br>
    <input type="submit" name="submit" value="Generate Table"> </center>
    </form>

</div>

<?php

$out = ''; // initialize a string holder and when the submission is done, concatenate all the strings
if(isset($_POST['submit'])) { // catch submission button

    $row = $_POST['title1'];
    $column = $_POST['title2'];

    $out .= "<table border='1'>";

    for($tr=1;$tr<=$row;$tr++){

    $out .= "<tr>";
        for($td=1;$td<=$column;$td++){
               $out .= "<td>row: ".$tr." column: ".$td."</td>";
        }
    $out .= "</tr>";
    }

    $out .= "</table>";

}

echo $out; // finally echo it

答案 1 :(得分:1)

您需要发布到同一页面,并检查PhP Post数组是否还有数据。

将表单操作替换为:

<form action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']); ?>" method="POST">

注意:虽然大多数(所有?)浏览器都支持空白操作的自发帖,但这在技术上并不符合W3C标准。

然后,当提交页面时,它将重新加载相同的页面并填充POST数组。在页面的某处添加类似于以下的条件:

if($_POST['title']){
  //do whatever get_table/execute_table.php did
}else{
  //echo the form here or, if you're allowed, use an include()
}

有关自我发布的更多信息: How do I make a PHP form that submits to self?

答案 2 :(得分:1)

通过仅使用一个页面来实现这一点,只需将action属性留空即可。并在顶部添加您的php块。并确保将其保存为.php并将您的PHP代码块放在所有html之上


所以最后它看起来像这样

<?php

    $row = $_POST['title1'];
    $column = $_POST['title2'];

    echo "<table border='1'>"; 

    for($tr=1;$tr<=$row;$tr++){ 

    echo "<tr>"; 
        for($td=1;$td<=$column;$td++){ 
               echo "<td>row: ".$tr." column: ".$td."</td>"; 
        } 
    echo "</tr>"; 
    } 

    echo "</table>"; 
    ?>

    <html>
    <head>
    <title>Table Generator</title>

    <body>
    <center><h1>Generate Your Table</h1></center>

    <div id="div1">
    <center><h4>Enter number of Row and Column</h4>
    <form action="" method="POST">
    <label for="title">Row</label>
    <input type="text" name="title1" placeholder="Row">
    <br>
    <label for="title">Column</label>
    <input type="text" name="title2" placeholder="Column">
    <br>
    <input type="submit" name="submit" value="Generate Table"> </center>
    </form>

    </div>



    </body>
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