passing php variable in onClick function

Question

I want to pass the php variable value in onClick function. When i pass the php variable, in the UI i am getting the variable itself instead I need the value in the variable.

Answer 1

$var = "Hello World!";
echo "$var"; // echoes Hello World!
echo '$var'; // echoes $var

Don't mix up " and ', they both have importance. If you use some " in your string and don't want to use the same character as delimiter, use this trick:

echo 'I say "Hello" to ' . $name . '!';