how can i put the value 1 or 0 into checkbox if we checked then 1 otherwise 0?

This can be done fairly straightforwardly.

If you want to tick a box depending on the input to the form when re-echoing out that form, then you simply see whether it is set to 1 or 0 in your code.

You then echo the box to being checked when you write the code, depending on the value, e.g. like this:


<?php

$checked = $_POST[checked];

//this contains 1 if the box was checked and 0 otherwise



echo "<form action='blah.php' method='post'>

This checkbox will be ticked if you selected it on the previous page:";

echo "<input type='checkbox' name='checked'";

if($checked) { echo "CHECKED"; }

echo ">";

echo "<input type='submit' name='submit' value='send form'>";

echo "</form>";

?>

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how can i put the value 1 or 0 into checkbox if we checked then 1 otherwise 0?

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