以php（json）的形式检索变量

Question

How do I retrieve the value I receive from the php file in json (echoed in id="show_result" from $show) as a php variable? I wanna be able to do further calculations in php on that variable in first.php

Answer 1

Given the expected result of:

{"show":246}
{"show":100}

Use $.getJSON() to better handle the results:

<script>
    var localShow;
    $('#number').on('keyup',function(e){
        if(e.which == 13){
        var get_var_name = $(this).val();
            $.getJSON(
                'result.php',
                { number:get_var_name },
                function(data,status){
                    console.log(data);
                    if(status == 'success'){
                        $('#show_result').text(data.show);
                        localShow = data.show;
                    } else{
                        alert('Status: ' + status);
                    }
                }
            });
        }
    });
</script> 

The script should read the JSON and create data as an object. You can then call show using dot notation: data.show should result in the value 246 or 100 depending on the result.

More details: http://api.jquery.com/jquery.getjson/