在表格中打印函數值？

-1

如何在表格中打印函數的值？我很難弄清楚這一點，在Google中查看它，觀看一些Youtube PHP教程，但仍然沒有任何結果，還有一個錯誤，告訴我$ cols，$ rows，$ rNumber未定義。輸出應該看起來像一個半金字塔。在表格中打印函數值？

<?php 
do { 
    $rNumber = mt_rand(3, 11); 
} while ($rNumber % 2 == 0); 

echo '<strong>Looping Statements Exercises</strong>'; 
echo '<br>'; 
echo '<br>'; 
echo 'This page shows eight (8) figures programatically generated by looping statements. Number of rows are random odd integer between 3 and 11.'; 
echo '<br>'; 
echo '<br>'; 


echo '<table border = "1">'; 
echo '<tr>'; 
echo '<td colspan = "4"><center>Size:<strong>', $rNumber, ' x ', $rNumber, '</strong>'; 
echo '</tr>'; 
echo '<tr>'; 
echo '<td> Figure A'; 
echo '<td> Figure B'; 
echo '<td> Figure C'; 
echo '<td> Figure D'; 
echo '</tr>'; 
echo '<tr>'; 
echo '<td> Figure A here'; 
echo '<td>', figure_b($cols, $rows), '</td>'; 
echo '<td> Figure C here'; 
echo '<td> Figure D here'; 
echo '</tr>'; 
echo '<tr>'; 
echo '<td> Figure E'; 
echo '<td> Figure F'; 
echo '<td> Figure G'; 
echo '<td> Figure H'; 
echo '</tr>'; 
echo '<tr>'; 
echo '<td> Figure E here'; 
echo '<td> Figure F here'; 
echo '<td> Figure G here'; 
echo '<td> Figure H here'; 
echo '</tr>'; 


function figure_b($rows, $cols) 
{ 
    if ($rNumber == 5) { 
     for ($rows = 0; $rows <= 5; $rows++) { 
      for ($cols = 0; $cols <= 5; $cols++) { 

       return $cols; 
      } 
      return $rows; 
     } 
    } 
} 

echo '</table>';

來源

2014-07-25 Lorenzo Carlo Naguit

figure_b（$的cols，$行）在哪裏那個變量？ –

這不是導致錯誤，但也許你應該關閉標籤... – lpg

-1

<?php 

do{ 
             $rNumber = mt_rand(3,11); 
             }while ($rNumber % 2 == 0); 

             echo '<strong>Looping Statements Exercises</strong>'; 
             echo '<br>'; 
             echo '<br>'; 
             echo 'This page shows eight (8) figures programatically generated by looping statements. Number of rows are random odd integer between 3 and 11.'; 
             echo '<br>'; 
             echo '<br>'; 


             echo '<table border = "1">'; 
             echo '<tr>'; 
             echo '<td colspan = "4"><center>Size:<strong>',$rNumber,' x ',$rNumber,'</strong>'; 
             echo '</tr>'; 
             echo '<tr>'; 
             echo '<td> Figure A'; 
             echo '<td> Figure B'; 
             echo '<td> Figure C'; 
             echo '<td> Figure D'; 
             echo '</tr>'; 
             echo '<tr>'; 
             echo '<td> Figure A here'; 
             echo '<td>', figure_b(5, 5,$rNumber),'</td>'; 
             echo '<td> Figure C here'; 
             echo '<td> Figure D here'; 
             echo '</tr>'; 
             echo '<tr>'; 
             echo '<td> Figure E'; 
             echo '<td> Figure F'; 
             echo '<td> Figure G'; 
             echo '<td> Figure H'; 
             echo '</tr>'; 
             echo '<tr>'; 
             echo '<td> Figure E here'; 
             echo '<td> Figure F here'; 
             echo '<td> Figure G here'; 
             echo '<td> Figure H here'; 
             echo '</tr>'; 


             function figure_b($rows, $cols,$rNumber) 
             { 
              if($rNumber == 5) 
              { 
               for($rows = 0; $rows<=5; $rows++) 
               { 
                for ($cols = 0; $cols<=5; $cols++) 
                { 

                return $cols; 
                } 
               return $rows; 
               } 
              } 
             } 
             echo '</table>'; 

?>

來源

2014-07-25 13:33:26

您的功能：

function figure_b($rows, $cols) 
{ 
if($rNumber == 5) 
{ 
for($rows = 0; $rows<=5; $rows++) 
{ 
for ($cols = 0; $cols<=5; $cols++) 
{ 

return $cols; 
} 
return $rows; 
} 
} 
}

是完全錯誤的。

它應該是相當：

function figure_b($rNumber) 
{ 
    if ($rNumber == 5) { 
     for ($rows = 0; $rows <= 5; $rows++) { 
      for ($cols = 0; $cols <= 5; $cols++) { 
       echo $cols.' '; 
      } 
      echo $rows.'<br />'; 
     } 
    } 
}

如果你想你的表內顯示任何內容，並使用rNumber變量（似乎沒有必要通過這裏$rows和$cols變量）

但是你的代碼是非常糟糕的，你不應該這樣混合使用PHP代碼和HTML代碼。如果您需要將代碼的某些部分移到其他文件中，而不是使用太多的echo，因爲它也會影響您的性能。

來源

2014-07-25 13:33:51

你可以通過嘗試昌河這

$rNumber = mt_rand(3,11); 
}while ($rNumber % 2 == 0);

這個開始：

$rNumber = mt_rand(3,11);        
    while ($rNumber % 2 == 0);

和你的函數：

function figure_b($rNumber) 
    { 
       if($rNumber == 5) 
       { 
        for($rows = 0; $rows<=5; $rows++) 
         { 
          for ($cols = 0; $cols<=5; $cols++) 
           { 

            echo $cols; 
           } 
            echo $rows; 
          } 
        } 
}

來源

2014-07-25 13:35:40 Youness

在表格中打印函數值？

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