Dynamic Table Continuous <td> Count - php

Question

I am stuck in a weird problem, I want to show the continuous number till the last in the row and cols,
instead of that its showing form 1-50 and then again the row starts with 1 up-to 50.
<?php
$rows = 10;
$cols = 50;
$x=1 ;
echo "<table border='1'>";
for($tr=1;$tr<=$rows;$tr++){
echo "<tr>";
for($td=1;$td<=$cols;$td++){
echo "<td>$td</td>";
}
echo "</tr>";
}
echo "</table>";
?>
Thanks

Answer 1

$rows = 10;
$cols = 50;
$x=1 ;
echo "<table border='1'>";
for($tr=1;$tr<=$rows;$tr++){
$style = "green";
if ($tr % 2 == 0) {
$style = "#ccc";
}
echo "<tr style='background-color:".$style."'>";
for($td=1;$td<=$cols;$td++)
{
echo "<td>$x</td>";
$x++;
}
echo "</tr>";
}
echo "</table>";

Answer 2

You are outputting $td which resets at every new tablerow.
Instead, you would like to output an incrementing $x, if I'm not mistaken.
<?php
$rows = 10;
$cols = 50;
$x=1 ;
echo "<table border='1'>";
for($tr=1;$tr<=$rows;$tr++){
echo "<tr>";
for($td=1;$td<=$cols;$td++){
echo "<td>" . $x . "</td>";
$x++;
}
echo "</tr>";
}
echo "</table>";
?>
In response to your comment on another answer: if you would want alternating row colors, you could use $tr and check wether it is even or uneven:
if($tr % 2 == 0)
{
// use color1
}
else
{
// use color2
}