Assign values to PHP variables, input values to variables in JavaScript, and assign values to javascript variables.

Assign values to PHP variables, input values to variables in JavaScript, and assign values to javascript variables.

Copy codeThe Code is as follows:
$ (Document). ready (function (){

<? Php $ f = "'name'"?>
Var t = <? Php echo $ f?>;
Alert (t)
})

Or
Copy codeThe Code is as follows:
$ (Document). ready (function (){

<? Php $ f = "name"?>
Var t = "<? Php echo $ f?> ";
Alert (t)
})

Or
Copy codeThe Code is as follows:
<Script language = "javascript">
Var t = <? Php echo '"sd"'?>;
Alert (t)
</Script>

The key is that both single quotation marks and quotation marks must be added on both sides of sd. Otherwise, the display will be displayed.
"Sd is not defined
[Interrupted at this error]
Var t = sd ;"
Sd is a variable without quotation marks. If this variable is not defined before, it is assigned to another variable. Of course, an error is returned.