<script src="//code.jquery.com/jquery-1.10.2.js"></script>
<script>
$(document).ready(function(){
$.ajax({
url: 'http://test_php_json_page/',
dataType: 'json'
}).done(function(data){
$.each(data, function(key, value){
console.log(key, ' :', value);
})
}).fail(function(){
console.log('error');
});
});
</script>