How to get exact number of columns, loop statement [closed] - php

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Closed 10 years ago.
I am making a loop that displays a table with 12 columns. It starts with the number 1912 and ends with 2013. The problem is, when it loops to 1920, it has no remainder and starts a new row. I need to get the code to make a new row after the 12th column.
This is the result I'm getting:
And here is what I have so far:
<?php
$columns = 12;
$Year = 1912;
echo "<table width="755" border="1">";
echo "<tr>";
while ($Year <= 2013) {
if (!($Year % $columns)) {
echo "</tr><tr>";
}
echo "<td>$Year</td>";
++$Year;
}
echo "</tr>";
echo "</table>";
?>

Answer 1

<?php
$columns = 12;
$Year = 1912;
$i=1;
echo "<table width=\"755\" border=\"1\">";
echo "<tr>";
while ($Year <= 2013)
{
if ($i==13)
{
echo "</tr><tr>";
$i=1;
}
echo "<td>$Year</td>";
$Year++;
$i++;
}
echo "</tr>";
echo "</table>";
?>

Answer 2

SOLUTION 1
You need to append and prepend columns for the years where this matches, like so:
And here's the code for doing so:
<?php
$columns = 12;
$startingYear = 1912;
$endingYear = 2013;
$realStartingYear = $startingYear;
$realEndingYear = $endingYear;
//Find the real starting year by going back a year until we hit the right one
while ($realStartingYear % $columns) {
$realStartingYear--;
}
//Find the real ending year by going forward a year until we hit the right one
while ($realEndingYear % $columns) {
$realEndingYear++;
}
echo '<table width="755" border="1">';
echo "<tr>";
for ($year = $realStartingYear; $year < $realEndingYear; $year++) {
if (!($year % $columns)) {
echo "</tr><tr>";
}
echo "<td>" . ($year >= $startingYear && $year <= $endingYear ? $year : "") . "</td>";
}
echo "</tr>";
echo "</table>";
?>
If you want to show the other columns as well, just change
echo "<td>" . ($year >= $startingYear && $year <= $endingYear ? $year : "") . "</td>";
to
echo "<td>" . $year . "</td>";
SOLUTION 2
You want to start the table with 1912, like so:
The code will be a lot simpler:
<?php
$columns = 12;
$startingYear = 1912;
$endingYear = 2013;
echo '<table width="755" border="1">';
for ($i = $startingYear; $i <= $endingYear; $i += $columns) {
echo "<tr>";
for ($j = 0; $j < $columns; $j++) {
echo "<td>" . ($i + $j) . "</td>";
}
echo "</tr>";
}
echo "</tr>";
echo "</table>";
?>

Answer 3

You want to wrap every 12 columns, just keep track of the current column and use that to determine when you should end the row (e.g. every 12th column) --
$col = 1;
while ($Year <= 2013 && $col++) {
if (!($col % $columns)) {
//...
Using $Year to determine when to wrap just complicates things.