<script>
for (var counter = 0; counter <= '<?php $last_id?>'; counter++) {

var Count_php = '<?php $counter=0;?>';
marker('<?php $data["lat"][$counter]?>','<?php $data["lng"][$counter]?>');
Count_php = '<?php $counter++;?>';
alert('<?php $counter ?>');


}
</script>

بنظرتون مشکل کد من کجاست؟