dongxing2263 2018-12-05 09:05
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PHP - 将表链接到HTML并进行乘法运算

I have the following php code that generates a 10X10 table:

<?php
echo "<table border =\"1\" style='border-collapse: collapse'>";
for ($row=1; $row <= 10; $row++) { 
    echo "<tr> 
";
    for ($col=1; $col <= 10; $col++) { 
       $a = "$row * $col";
       echo "<td><a href = '$a'>$a</a></td> 
";
    }
    echo "</tr>";
}
echo "</table>";
?>

  1. How to recreate this table in HTML, such that links will work?

  2. Every field in a table needs to do a multiplication, e.g. field '5*6' gives result '30'. How to write a php class that will do this operation? So, for row*column, return variable result.

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2条回答 默认 最新

  • doulidai6316 2018-12-05 09:53
    关注

    in your Calculator.php

    <?php
Class Calculator {

    public function calculate($row, $col){
        return $result = $row * $col;
    }
}

    Change index.php as follow.

    <?php include_once('Calculator.php'); ?>
<!DOCTYPE html>
<html>
<head>
    <title></title>
    <style type="text/css">
        a{
            cursor: pointer;
        }
    </style>
</head>
<body>
    <div>
        <input type="text" value="<?php if( (isset($_GET['col']) && $_GET['row'])){ echo Calculator::calculate($_GET['row'],$_GET['col']); } ?>">
    </div>
    <?php
    echo "<table border =\"1\" style='border-collapse: collapse'>";
    for ($row=1; $row <= 10; $row++) { 
        echo "<tr> 
";
        for ($col=1; $col <= 10; $col++) { 
           $a = "$row * $col";
           echo "<td><a href=?row=$row&col=$col>".$a;
           //if( (isset($_GET['col']) && $_GET['row'] && $row==$_GET['row'] && $col==$_GET['col'])){ echo Calculator::calculate($row,$col); }else{ echo $a ;}
           echo "</a></td> 
";
        }
        echo "</tr>";
    }
    echo "</table>";
    ?>
</body>
</html>
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