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I can’t figure out why…
This works:
<?php
if($_POST['test']) echo "posted";
?>
<form method="POST" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<input type="submit" name="test" />
</form>
and this doesn’t:
<?php
if($_POST['test']) echo "posted";
?>
<form method="POST" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<input type="image" name="test" src="images/button.submit.png" />
</form>
When you post via an image the x/y coordinates that were clicked on are sent instead. Check
$_POST['test_x']and$_POST['test_y']