an issue with php get function [duplicate]

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• PHP code is not being executed, instead code shows on the page 24 answers

i wanted to fill a form field in my webpage using URL parameters, i have a form in the page with several fields, currently, i am just testing with one fiel named "name-1-field", i a newbie in web and have poor knowledge of PHP and java script, some one gave me this code snippet to use in page's footer in order to fill the field : the problem i enter is like this:

"http://***.com/testform/?name1=John"

<script type='text/javascript'>
    var fieldValue = '<?php echo $_GET["name1"]; ?>';

    jQuery( "#name-1-field" ).val( fieldValue );

</script> 

but the value that the field is filled with is this (i mean the whole string below)

<?php echo $_GET["name1"]; ?>

not the string "John"