For Loop

jkewlo · December 16, 2009

hey this is retarted i have tired everything in the world i cant seem to figure it out

I am trying to make a table show

like this but I cant for the life of me

[][][][][][][][][][][][][][][][][][][][]

Daniel0 · December 16, 2009

$rows = 10;
$cols = 10;

for ($i = 0; $i < $rows; ++$i) {
    for ($j = 0; $j < $cols; ++$j) {
        echo '[]';
    }
    echo PHP_EOL;
}

// OR

for ($i = 0; $i < $rows; ++$i) {
    echo str_repeat('[]', $cols) . PHP_EOL;
}

// OR

for ($i = 0; $i < $rows * $cols; ++$i) {
    echo '[]';
    if ($rows % $cols == 0) {
        echo PHP_EOL;
    }
}

Neither of them tested, but the principles still apply.

jkewlo · December 16, 2009

ok tight now how will I go about doing this with a table?

cags · December 16, 2009

Before the loops output an opening table tag, at the start of the row loop output a tr opening tag, at the start of the column loop output an opening td tag then your content then a closing td tag, after the column loop at the end of the row loop output a closing tv tag, after the row loop output a closing table tag.

Daniel0 · December 16, 2009

Well, it's the same principle (you'd probably want to use the first approach). The inner for loop is for every cell, and the outer for loop does something on each row. Assuming you mean an HTML table, something like this:

<table>
<?php
$rows = 10;
$cols = 10;

for ($i = 0; $i < $rows; ++$i) {
    echo '<tr>';
    for ($j = 0; $j < $cols; ++$j) {
        echo "<td>{$i},{$j}</td>";
    }
    echo '</tr>';
}
?></table>

Again, untested.

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