PHP变量for循环

Question

hey guys is this even possible to be done in php

<?php   
$sectorcount = $row_SectorCount['COUNT(*)'];
//number of rows in database
for ($i = 1; $i <= $sectorcount; $i++)
{
${spendingname . $i}= array();
${spendingpercent . $i} = array();
${spendingid . $i} = array();

mysql_select_db($database_conn2, $conn2);
$query_Spending = "SELECT CONCAT(spending.SectorID, spending.ExpenditureID) AS 'SpendingID',
expenditure.ExpenditureName, spending.SpendingPercent, spending.SectorID
FROM spending   
INNER JOIN expenditure ON spending.ExpenditureID = expenditure.ExpenditureID
WHERE spending.SectorID = ".$i;
$Spending = mysql_query($query_Spending, $conn2) or die(mysql_error());
$totalRows_Spending = mysql_num_rows($Spending);
while($row_Spending = mysql_fetch_assoc($Spending))
{
${spendingname.$i}[] = $row_Spending['ExpenditureName'];
${spendingpercent.$i}[] = $row_Spending['SpendingPercent'];
${spendingid.$i}[]= $row_Spending['SpendingID'];
}
mysql_free_result($Spending);
}

i was planning to use this here in this context. having an array to draw out the values using a where clause and display them individually

Answer 1

This is what you are looking for:

for ($i = 0; $i < 14; $i++) {
    ${'name' . $i} = $i;
}

echo $name3;

But you should just use an array:

$name = array();
for ($i = 0; $i < 14; $i++) {
    $name[$i] = $i;
}

echo $name[3];

If you need an array in an array, go ahead and do that too. If you need more nested arrays than that, you should probably be using a class somehow instead of all that array nesting.