我有一个嵌套数组，其他三个数组：$ online，$ busy和$ offline，以便按照这个顺序显示结果。
$conteudo = array($online, $ocupado, $offline);
所需的结果将是两列中的表格，以连续流程显示结果，如下所示：
online1 | online2
online3 | busy1
busy2 | offline1
offline2| offline3
offline4|
我一直在尝试很多foreach循环并且在改变html标签，但是我能得到的最接近的结果是：
<table width='100%' cellpadding='5' border="1">
<?php
$i = 1; //contador de colunas
$max_colunas = 2; // numero de colunas
foreach ($conteudo as $row) {
echo "<tr>";
foreach ($row as $col) {
foreach ($col as $cell) {
if ($i == 1) {
echo "<td>" . $cell . "</td>";
} elseif ($i == $max_colunas){
echo "<td>" . $cell . "</td></tr>";
$i = 0;
} else {
echo "<td>" . $cell . "</td>";
}
$i++;
}
}
echo "</tr>";
}
此代码将输出如下表格：
onine1 | online2 |online3
busy1 | busy2 |
offline1|offline2 |offline3|offline4
我无法找出为什么它完全忽略$max_colunas，似乎它会在行中打印出数组内的所有元素。
如果我删除行：
echo "<tr>";
echo "</tr>";
从foreach的开头和结尾，它将像这样输出所有行：
onine1 | online2 |online3 | busy1 | busy2 |offline1|offline2 |offline3|offline4
任何有关获得所需输出格式的建议都将受到赞赏。
于17/01编辑：
这就是我从以下方式获取数组的方法：
//group people
$online = array(); //group online
$ocupado = array(); //group ocupado
$offline = array(); //group offline
//select people to group
$atendentes = mysql_query("SELECT nome FROM atendentes ORDER BY nome") or die(mysql_error());
$atendentedb = array();
//put selected people in array
while ($row = mysql_fetch_assoc($atendentes)) {
$atendentedb[] = array('nome' => $row["nome"], 'online' => false);
}
//take people online now and check in selected people
$names = modWhosonlineCustom::getOnlineUserNames();
foreach ($names as $name):
//foreach ($atendentedb as $atendente):
for($i = 0; $i < count($atendentedb); $i++):
$att = strtolower($name->username);
if ($atendentedb[$i]['nome'] == $att):
$atendentedb[$i]['online'] = true;
break;
endif;
endfor;
endforeach;
//check each selected people
foreach ($atendentedb as $atendente) :
//save temporary data
$online_ = $atendente['online'];
$nome_ = $atendente['nome'];
//if selected people online
if ($online_) :
//take status to show
$status = mysql_query("SELECT status FROM atendentes WHERE nome = '$nome_' LIMIT 1") or die(mysql_error());
while ($row = mysql_fetch_assoc($status)):
$statusdb = $row["status"];
endwhile;
//verify and save deppending on status
switch ($statusdb):
//if online
case "disponivel":
$descricao = mysql_query("SELECT hp_online FROM atendentes WHERE nome = '$nome_' LIMIT 1") or die(mysql_error());
while ($row = mysql_fetch_assoc($descricao)):
$online[] = array('info'=>$row['hp_online']);
endwhile;
break;
//if busy
case "ocupado":
$descricao = mysql_query("SELECT hp_busy FROM atendentes WHERE nome = '$nome_' LIMIT 1") or die(mysql_error());
while ($row = mysql_fetch_assoc($descricao)):
$ocupado[] = array('info'=>$row['hp_busy']);
endwhile;
break;
endswitch;
//if offline
else:
$descricao = mysql_query("SELECT hp_offline, horario FROM atendentes WHERE nome = '$nome_' LIMIT 1") or die(mysql_error());
while ($row = mysql_fetch_assoc($descricao)):
$offline[] = array('info'=>$row['hp_offline'], 'horario'=>$row['horario']);
endwhile;
endif;
endforeach;
EDITED
因此，在遵循DaveRandom的帮助说明之后，我得到了这段代码，除了来自数组$offline的结果的“神秘”行为外，它实际上远离正确的格式，显示全部“阻止”（一行中的所有单元格，或列中的所有单元格），而其他数组显示完美（??）。
//group people
$online = $ocupado = $offline = array();
//select people to group
$query = "SELECT nome, status, hp_online, hp_busy, hp_offline, horario
FROM atendentes
ORDER BY nome";
$atendentes = mysql_query($query) or die(mysql_error());
$atendentedb = array();
// put selected people in array
while ($row = mysql_fetch_assoc($atendentes)) {
$atendentedb[strtolower($row['nome'])] = array_merge($row, array('online' => FALSE));
}
//take people online now and check in selected people
$names = modWhosonlineCustom::getOnlineUserNames();
foreach ($names as $name) {
$uname = strtolower($name->username);
if (isset($atendentedb[$uname])) $atendentedb[$uname]['online'] = TRUE;
}
//check each selected people
foreach ($atendentedb as $name => $atendente) {
//if selected people online
if ($atendente['online']) {
//verify and save deppending on status
switch ($atendente['status']) {
//if online
case 'disponivel':
$atendentedb[$name]['info'] = $online[] = $atendente['hp_online'];
break;
//if busy
case 'ocupado':
$atendentedb[$name]['info'] = $ocupado[] = $atendente['hp_busy'];
break;
}
//if offline
} else {
$atendentedb[$name]['info'] = $offline[] = $atendente['hp_offline'];
$atendentedb[$name]['info'] = $offline[] = $atendente['horario'];
}
}
//*******Display Results
$conteudo = array_merge($online, $ocupado, $offline);
$max_colunas = 2; // numero de colunas
// Start the table
echo '<table width="100%" cellpadding="5" border="1">'."\n";
// Loop all the objects
for ($i = 0, $j = 0; isset($conteudo[$i]); $i++) {
if ($j == 0) {
// Output the beginning of a row
echo " <tr>\n";
}
// Always output a data cell
echo " <td>$conteudo[$i]</td>\n";
if (++$j >= $max_colunas) {
// Output the end of a row and reset the cell counter
echo " </tr>\n";
$j = 0;
}
}
if ($j) {
// We may end up with an incomplete row at the end, so pad it with empty cells
// and close the row
while ($j++ < $max_colunas) {
echo " <td></td>\n";
}
echo " </tr>\n";
}
// Close the table
echo "</table>";
答案 0 :(得分：0)
我要说的是，这里要做的第一件事是“扁平化”阵列 - 具有多个尺寸使得它比它需要的复杂得多。因此，而不是像这样创建$conteudo：
$conteudo = array($online, $ocupado, $offline);
......改为：
$conteudo = array_merge($online, $ocupado, $offline);
然后你可以这样做：
$max_colunas = 2; // numero de colunas
// Start the table
echo '<table width="100%" cellpadding="5" border="1">'."\n";
// Loop all the objects
for ($i = 0, $j = 0; isset($conteudo[$i]); $i++) {
if ($j == 0) {
// Output the beginning of a row
echo " <tr>\n";
}
// Always output a data cell
echo " <td>$conteudo[$i]</td>\n";
if (++$j >= $max_colunas) {
// Output the end of a row and reset the cell counter
echo " </tr>\n";
$j = 0;
}
}
if ($j) {
// We may end up with an incomplete row at the end, so pad it with empty cells
// and close the row
while ($j++ < $max_colunas) {
echo " <td></td>\n";
}
echo " </tr>\n";
}
// Close the table
echo "</table>";
修改
尝试使用此代码生成阵列。请注意，输出数组的结构已经更改为适合我上面的代码示例 - 如果您在脚本中的任何其他位置使用此数据，则还需要修改该代码。我已经修改了这个，所以只有一个数据库查询，这似乎只是所需要的。我还修改了它，以便$atendentedb保存所有用户数据，包括status和info键，所有行都包含horario键。
由于您的输入数组最初包含的数据多于此代码创建的数据，因此代码可能需要进一步修改 - 但请试一试，看看您是如何继续的。
//group people
$online = $ocupado = $offline = array();
//select people to group
$query = "SELECT nome, status, hp_online, hp_busy, hp_offline, horario
FROM atendentes
ORDER BY nome";
$atendentes = mysql_query($query) or die(mysql_error());
$atendentedb = array();
// put selected people in array
while ($row = mysql_fetch_assoc($atendentes)) {
$atendentedb[strtolower($row['nome'])] = array_merge($row, array('online' => FALSE));
}
//take people online now and check in selected people
$names = modWhosonlineCustom::getOnlineUserNames();
foreach ($names as $name) {
$uname = strtolower($name->username);
if (isset($atendentedb[$uname])) $atendentedb[$uname]['online'] = TRUE;
}
//check each selected people
foreach ($atendentedb as $name => $atendente) {
//if selected people online
if ($atendente['online']) {
//verify and save deppending on status
switch ($atendente['status']) {
//if online
case 'disponivel':
$atendentedb[$name]['info'] = $online[] = $atendente['hp_online'];
break;
//if busy
case 'ocupado':
$atendentedb[$name]['info'] = $ocupado[] = $atendente['hp_busy'];
break;
}
//if offline
} else {
$atendentedb[$name]['info'] = $offline[] = $atendente['hp_offline'].' '.$atendente['horario'];
}
}
答案 1 :(得分：0)
我认为你应该在里面更新计数器
foreach ($col as $cell) { }所以它将计算内部数组的元素，并在那里移动<tr>的decalration。
if (!is_int($i/2)) { print '<tr><td>' }