Question

我对“高级PHP”很新，我不断遇到PHP标题的错误。

    <?php
        $getTrans = dbquery("SELECT * FROM cms_transactions WHERE userid = '".USER_ID."' AND pin = '0' ORDER BY date DESC LIMIT 50");
        $oe = 1;
        while($transaction = mysql_fetch_assoc($getTrans)){
            if ($oe == 2)
            {
                $oe = 1;
            }
            else
            {
                $oe = 2;
            }
            $oDate = strtotime($transaction['date']);
            $sDate = date("<b>l, j - F, o</b> g:ha",$oDate);
            echo'
                <tr style=" background-color: ' . (($oe == 2) ? '#e2e2e2' : '#fff') . ';">
                <td>'.$transaction['id'].'</td>
                <td>'.$transaction['descr'].'</td>
                <td>'.$transaction['credits'].' deducted</td>
                <td>'.$transaction['amount'].' deducted</td>
                <td>'.$transaction['vip_points'].' deducted</td>
                <td>'.$sDate.'</td>
                <td><input type="submit" value="+ Pin" name="'.$transaction['id'].'" /></td>
                </tr>
            ';
    $trans = $transaction['id'];
    if(isset($_POST["$trans"])){
        dbquery("UPDATE cms_transactions SET pin = '1' WHERE id = '".$trans."' AND userid = '".USER_ID."' LIMIT 1");
        header("Location: ".WWW."/identity/transactions");
    }
        }
        if(mysql_num_rows($getTrans) == 0){
        echo '<div class="error" id="black">You have no recent Transactions</div>';
        }

    ?>

我一直在/ identity / transactions的底部收到PHP Header错误。

我意识到我遇到了问题，因为“页面已经加载了内容”，并且必须在页面开头使用PHP标头。我发布的以下代码段是一个包含的文件;在主文件中。

主要问题是，我正在寻找一种方法将内容与“后端”php工作分开。

例如：

主PHP文件包含所有代码，include（）;文件有“内容”一面。

这有可能吗？如果你能给出一个例子，那就太好了！

如果您不清楚，请告诉我。

EDIT;这是整个文件：

<table class="information-table" style="margin-top:-5px;">
<tr>

<td style="text-shadow:none;">

<a class="new-button" href="<?php echo WWW ; ?>/account/logout"><b>Log out</b><i></i></a>

        <div id="back-link" style="color:#fff;">

        <a href="<?php echo WWW ; ?>/identity/avatars" style="color:#fff;">My Avatars</a> &raquo; <a href="<?php echo WWW ; ?>/identity/settings" style="color:#fff;">Account Settings</a> &raquo; Transactions

        </div>


</td></tr>
</table>


<div id="column1" class="column" style="width:960px;margin-right:10px;">

        <h1>Account Transactions:</h1>
        <h3>Pinned Transactions:</h3>
        <i>Pinning a transaction is useful if you have a transaction that is important; that you might need in the future!</i>
        <p>
        <table>
        <thead>
        <tr><td>ID</td><td>Description</td><td>Credits</td><td>Pixels</td><td>Stars</td><td>Purchase Date</td><td></td></tr>
        </thead>
        <tbody>
        <form method="post">
        <?php
            $getTrans = dbquery("SELECT * FROM cms_transactions WHERE userid = '".USER_ID."' AND pin = '1' ORDER BY date DESC LIMIT 100");
            $oe = 1;
            while($transaction = mysql_fetch_assoc($getTrans)){
                if ($oe == 2)
                {
                    $oe = 1;
                }
                else
                {
                    $oe = 2;
                }
                $oDate = strtotime($transaction['date']);
                $sDate = date("<b>l, j - F, o</b> g:ha",$oDate);
        $transs = $transaction['id'];
        if(isset($_POST["un$transs"])){
            dbquery("UPDATE cms_transactions SET pin = '0' WHERE id = '".$transs."' AND userid = '".USER_ID."' LIMIT 1");
            header("Location: ".WWW."/identity/transactions");
        }
                echo'
                    <tr style=" background-color: ' . (($oe == 2) ? '#e2e2e2' : '#fff') . ';">
                    <td>'.$transaction['id'].'</td>
                    <td>'.$transaction['descr'].'</td>
                    <td>'.$transaction['credits'].' deducted</td>
                    <td>'.$transaction['amount'].' deducted</td>
                    <td>'.$transaction['vip_points'].' deducted</td>
                    <td>'.$sDate.'</td>
                    <td><input type="submit" value="- Pin" name="un'.$transaction['id'].'" /></td>
                    </tr>
                ';
            }
            if(mysql_num_rows($getTrans) == 0){
            echo '<div class="error" id="black">You have no Pinned Transactions</div>';
            }

        ?>
        </form>
        </tbody>
        </table>
        </p>

        <h3>Recent Transactions</h3>
        <p>
        <table>
        <thead>
        <tr><td>ID</td><td>Description</td><td>Credits</td><td>Pixels</td><td>Stars</td><td>Purchase Date</td><td></td></tr>
        </thead>
        <tbody>
        <form method="post">
        <?php
            $getTrans = dbquery("SELECT * FROM cms_transactions WHERE userid = '".USER_ID."' AND pin = '0' ORDER BY date DESC LIMIT 50");
            $oe = 1;
            while($transaction = mysql_fetch_assoc($getTrans)){
                if ($oe == 2)
                {
                    $oe = 1;
                }
                else
                {
                    $oe = 2;
                }
                $oDate = strtotime($transaction['date']);
                $sDate = date("<b>l, j - F, o</b> g:ha",$oDate);
        $trans = $transaction['id'];
        if(isset($_POST["$trans"])){
            dbquery("UPDATE cms_transactions SET pin = '1' WHERE id = '".$trans."' AND userid = '".USER_ID."' LIMIT 1");
            header("Location: ".WWW."/identity/transactions");
        }
                echo'
                    <tr style=" background-color: ' . (($oe == 2) ? '#e2e2e2' : '#fff') . ';">
                    <td>'.$transaction['id'].'</td>
                    <td>'.$transaction['descr'].'</td>
                    <td>'.$transaction['credits'].' deducted</td>
                    <td>'.$transaction['amount'].' deducted</td>
                    <td>'.$transaction['vip_points'].' deducted</td>
                    <td>'.$sDate.'</td>
                    <td><input type="submit" value="+ Pin" name="'.$transaction['id'].'" /></td>
                    </tr>
                ';
            }
            if(mysql_num_rows($getTrans) == 0){
            echo '<div class="error" id="black">You have no recent Transactions</div>';
            }

        ?>
        </form>
        </tbody>
        </table>
        </p>

</div>
<style>
td {
padding:10px;
}

tbody td {
text-shadow:0 1px 0 #fff;
}

thead td {
font-weight:bold;
text-align:center;
}
</style>

Answer 1

在这种情况下，您可以使用Output buffering来阻止已发送的标头：

ob_start();
$getTrans = dbquery("SELECT * FROM cms_transactions WHERE userid = '".USER_ID."' AND pin = '0' ORDER BY date DESC LIMIT 50");
        $oe = 1;
        while($transaction = mysql_fetch_assoc($getTrans)){
            if ($oe == 2)
            {
                $oe = 1;
            }
            else
            {
                $oe = 2;
            }
            $oDate = strtotime($transaction['date']);
            $sDate = date("<b>l, j - F, o</b> g:ha",$oDate);
            echo'
                <tr style=" background-color: ' . (($oe == 2) ? '#e2e2e2' : '#fff') . ';">
                <td>'.$transaction['id'].'</td>
                <td>'.$transaction['descr'].'</td>
                <td>'.$transaction['credits'].' deducted</td>
                <td>'.$transaction['amount'].' deducted</td>
                <td>'.$transaction['vip_points'].' deducted</td>
                <td>'.$sDate.'</td>
                <td><input type="submit" value="+ Pin" name="'.$transaction['id'].'" /></td>
                </tr>
            ';
    $trans = $transaction['id'];
    if(isset($_POST["$trans"])){
        dbquery("UPDATE cms_transactions SET pin = '1' WHERE id = '".$trans."' AND userid = '".USER_ID."' LIMIT 1");
        header("Location: ".WWW."/identity/transactions");
    }
        }
        if(mysql_num_rows($getTrans) == 0){
        echo '<div class="error" id="black">You have no recent Transactions</div>';
        }    

ob_end_clean();

Answer 2

我在重构代码方面遇到了麻烦，将所有处理放在页面顶部，底部的演示文稿（使得您遇到的错误更不容易发生）。

<?php

// I always do most of my PHP processing before any presentation stuff
// Makes for more manageble code

// Init the Variables
 // Transaction Arrays
$pinned_transactions = array();
$unpinned_transactions = array();
 // Interaction Variables
$ids = array();
$action = false;

// Check for Unpin/Pin Request
if( isset( $_POST['unpin'] ) && count( $_POST['unpin'] ) ){

  // There is a request to Unpin a Transaction
  $ids = array_keys( $_POST['unpin'] );
  $action = 0;

}elseif( isset( $_POST['pin'] ) && count( $_POST['pin'] ) ){
  // There is a request to Pin a Transaction
  $ids = array_keys( $_POST['pin'] );
  $action = 1;
}

// There was some kind of Pin/Unpin Request
if( count( $ids ) ){

  // Process the Change
  dbquery( 'UPDATE cms_transactions SET pin = '.(int) $action.' WHERE id IN( '.implode( ',' , $ids ).' ) AND userid = '.(int) USER_ID );

  // Set the Redirect
  $redirect_to = WWW.'/identity/transactions';

  // Use Headers, if we can
  if( !headers_sent() )
    header( 'Location: '.$redirect_to );
  // Outputting a javascript Redirect (as a fallback)
  //   along with a link (if javascript is off).
  echo '<script type="text/javascript">document.location.href = "'.$redirect_ro.'";</script>';
  echo '<a href="'.$redirect_to.'">Click here to continue</a>';
  die();

}

// Perform a Query for Pinned Transactions
$getTrans = dbquery( 'SELECT * FROM cms_transactions WHERE userid = '.(int) USER_ID.' AND pin = 1 ORDER BY date DESC LIMIT 100' );
while( $t = mysql_fetch_assoc( $getTrans ) ){

  $oDate = strtotime( $t['date'] );
  $sDate = date( "<b>l, j - F, o</b> g:ha" , $oDate );
  $t['date'] = $sDate;

  $pinned_transactions[] = $t;
}

// Perform a Query for Unpinned Transactions
$getTrans = dbquery( "SELECT * FROM cms_transactions WHERE userid = '".USER_ID."' AND pin = '0' ORDER BY date DESC LIMIT 50" );
while( $t = mysql_fetch_assoc( $getTrans ) ){

  $oDate = strtotime( $t['date'] );
  $sDate = date( "<b>l, j - F, o</b> g:ha" , $oDate );
  $t['date'] = $sDate;

  $unpinned_transactions[] = $t;
}


?><table class="information-table" style="margin-top:-5px;">
  <tr>
    <td style="text-shadow:none;">
      <a class="new-button" href="<?php echo WWW; ?>/account/logout"><b>Log out</b><i></i></a>
      <div id="back-link" style="color:#fff;">
        <a href="<?php echo WWW; ?>/identity/avatars" style="color:#fff;">My Avatars</a> &raquo; <a href="<?php echo WWW; ?>/identity/settings" style="color:#fff;">Account Settings</a> &raquo; Transactions
      </div>
    </td>
  </tr>
</table>

<div id="column1" class="column" style="width:960px;margin-right:10px;">

  <h1>Account Transactions:</h1>

  <h3>Pinned Transactions:</h3>
  <i>Pinning a transaction is useful if you have a transaction that is important; that you might need in the future!</i>
  <p>
<?php if( count( $pinned_transactions ) ){ ?>
    <form method="post">
      <table>
        <thead>
          <tr><td>ID</td><td>Description</td><td>Credits</td><td>Pixels</td><td>Stars</td><td>Purchase Date</td><td></td></tr>
        </thead>
        <tbody>
<?php   foreach( $pinned_transactions as $k => $r ){ ?>
          <tr class="<?php echo ( $k%2 ? 'odd' : 'even' ); ?>">
            <td><?php echo $transaction['id']; ?></td>
            <td><?php echo $transaction['descr']; ?></td>
            <td><?php echo $transaction['credits']; ?> deducted</td>
            <td><?php echo $transaction['amount']; ?> deducted</td>
            <td><?php echo $transaction['vip_points']; ?> deducted</td>
            <td><?php echo $transaction['date']; ?></td>
            <td><input type="submit" value="- Pin" name="unpin[<?php echo $transaction['id']; ?>]" /></td>
          </tr>
<?php   } ?>
        </tbody>
      </table>
    </form>
<?php }else{ ?>
    <div class="error" id="black">You have no Pinned Transactions</div>
<?php } ?>
  </p>

  <h3>Recent Transactions</h3>
  <p>
<?php if( count( $unpinned_transactions ) ){ ?>
    <form method="post">
      <table>
        <thead>
          <tr><td>ID</td><td>Description</td><td>Credits</td><td>Pixels</td><td>Stars</td><td>Purchase Date</td><td></td></tr>
        </thead>
        <tbody>
<?php   foreach( $unpinned_transactions as $k => $r ){ ?>
          <tr class="<?php echo ( $k%2 ? 'odd' : 'even' ); ?>">
            <td><?php echo $transaction['id']; ?></td>
            <td><?php echo $transaction['descr']; ?></td>
            <td><?php echo $transaction['credits']; ?> deducted</td>
            <td><?php echo $transaction['amount']; ?> deducted</td>
            <td><?php echo $transaction['vip_points']; ?> deducted</td>
            <td><?php echo $transaction['date']; ?></td>
            <td><input type="submit" value="- Pin" name="pin[<?php echo $transaction['id']; ?>]" /></td>
          </tr>
<?php   } ?>
        </tbody>
      </table>
    </form>
<?php }else{ ?>
    <div class="error" id="black">You have no recent Transactions</div>
<?php } ?>
  </p>

</div>
<style>

td {
  padding:10px;
}

// Odd and Even Rows
tr.odd {
  background-color:#FFFFFF;
}
tr.even {
  background-color:#E2E2E2;
}

tbody td {
  text-shadow:0 1px 0 #fff;
}

thead td {
  font-weight:bold;
  text-align:center;
}

</style>

PHP标头已经发送

2 个答案: