I have the following code within the <script> tags, which are within the <head> tags of my HTML file;
function generateUMR($length = 10) {
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$randomString = '';
for ($i = 0; $i < $length; $i++) {
$randomString .= $characters[rand(0, strlen($characters) - 1)];
}
return $randomString;
}
Within the <body> tags, I have the following line of code in order to output the randomly generated string;
echo '<script type="text/javascript"> generateUMR(); </script>';
I have been trying for a few hours now but I am receiving no output from this code, yet no errors, could someone please tell me where I am going wrong?
Thanks in advance.
Your function is treated as a string, you need to concatenate the function call like so.
echo '<script type="text/javascript"> ' . generateUMR() . ' </script>';
In order to see the result in the browser, you will need to view the HTML source because the browser won't show the content of a script tag. It doesn't really make sense to output this into a script tag, because it's just a random string, try some other tag such as <p></p> instead.
If you are trying to call the PHP function from the client side, then that won't work. You'll need to use AJAX to do that.