Use PHP variable in Javascript?

[Anon]

<script language="javascript">
<?$index = 0?>
for(i=0; i < 4; i++) {
<?$index++?>
document.write("<?echo $index?>")
}
</script>

+++++++++++++
The problem is the value of the variable $index doesn't change. It is still equal to "0" after exiting the for loop.
Any suggestion?

[Anon]

Your for() loop is outside PHP (it's being written into your Javascript).

<?$index = 0;
for(i=0; i < 4; i++) {
$index++;
?>
document.write("<?echo $index?>")
<?
}
?>

Of course, $index always equals $i+1 when it's used here, so

<?
for(i=1; i < 5; i++) {
?>
document.write("<?echo $i?>")
<?
}
?>

[salasilm]

Why do you mix php and javascript anyway?

USE

<script language="javascript">
for(var i=0; i < 4; i++) {
document.write(i);
}
</script>

OR

<script language="javascript">
<?
$index = 0;
for($i=0; $i < 4; $i++) {
$index++;
echo "document.write(\"$index\")";
}
?>
</script>

instead.

[Anon]

I have to change variable "i" from Javascript variable to PHP variable... and it works ^_
Thanks very much you guys.

I have to mix Javascript & PHP in the code coz I use some variable from Database in Javascript...

[Anon]

Just remember that Javascript can't change anything in PHP, and PHP treats Javascript as plain text.