显示数组中的数据

Question

In index.php page i have a script that fetches data from demo.php and displays the result in a div.

<div class="leftbox">
    <?php
        echo "<div id='proddisplay'>";
        echo "</div>";
    ?>
</div>

var onSubmit = function(e) {
    var txtbox = $('#txt').val();
    var hiddenTxt = $('#hidden').val();
    $.ajax({
        type: 'post',
        url: 'demo.php',
        data: {
            txt: txtbox,
            hidden: hiddenTxt
        },
        cache: false,
        success: function(returndata) {
            $('#proddisplay').html(returndata);
            console.log(returndata);
        },
        error: function() {
            console.error('Failed to process ajax !');
        }
    });
};

in demo.php script i get the result from

print_r($result);

the result that i get in the div is

Array ( [0] => 1st value [1] => 2nd value [2] => 3rd value [3] => 4th value )

I wish to get individial data from this array so that i can use each data seperately and wherever i want in the index.php page, but i am not able to do so. can anyone tell how can i fetch individual values from array for index page

PS: i have an option to display the format in demo page in the form of result[0] and so on for every index value and call it as it is in the index page but that bounds me with the css. I wish to use any css in index page and just call the values in index page.

I tried using result[0] in index page but it displayed no result i tried assigning the values of an array to a variable and then call these variables to index page but that also didn't displayed any result

Answer 1

convert your array to json

echo json_encode($result);

in your script

var onSubmit = function(e) {
  var txtbox = $('#txt').val();
  var hiddenTxt = $('#hidden').val();
  $.ajax({
    type: 'post',
    url: 'test2.php',
    dataType: 'json',
    data: {
      txt: txtbox,
      hidden: hiddenTxt
    },
    cache: false,
    success: function(returndata) {
         $('#first').html(returndata[0]);
          $('#second').html(returndata[1]);
           $('#third').html(returndata[2]);
            $('#fourth').html(returndata[3]);
         console.log(returndata[0]);
    },
    error: function() { 
      console.error('Failed to process ajax !');
    }
  });
};

first,second,third,fourth will be the id of the div or the area where you wish to display the result

Answer 2

The simplest way to loop through values in an array is to use foreach .

foreach

foreach($result as $value){
    print($value);
}

http://php.net/manual/en/control-structures.foreach.php

http://www.w3schools.com/php/php_looping_for.asp

Answer 3

Either access each value individually - for example $result[0] . Or if you want to loop over the entire array you can use foreach

Example:

foreach($result as $val){
   //do something with $val
}

PHP Arrays

Answer 4

Simply assign values of indexes to variables like below:

$first_value = $result[0];
$second_value = $result[1];
$third_value = $result[2];
$fourth_value = $result[3];

and so on in same sequence.

Answer 5

As you're using Ajax to get the data, you need to pass the array back as a JSON string. Add another parameter, dataType: 'JSON' to your Ajax call, this tells jQuery you're expecting a JSON string as a response and it'll automatically convert the JSON into an array for you when passing the result to the success function.

Then in your data.php value you need to run echo json_encode($result); to pass result back to the Ajax success function as a JSON string. jQuery converts it back from a JSON string to an array for us (that's why we add the dataType ). Then in your Ajax success function you console.log(resultdata.0) you'll get value1, and console.log(resultdata.1) will give you value2.