passing converted javascript array from php to javascript function -

i want pass javascript array(converted php js) present in php code javascript function.

<?php  //php javascript array conversion $php_array = array('he','hi','hello'); $js_array = json_encode($php_array); echo 'var groups = ". $js_array . ";\n';  ?>  function codeaddress(groups) { alert("into code address function");          (var i=0;i<groups.length;i++)     {         alert(groups[i]);     } } 

echo 'var groups = '. $js_array . ";\n"; 

variable not expanded inside single quotes. don't put output of json_encode quotes.