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Calling a PHP function from same PHP file throught AJAX – Jquery ajax

I am trying to call php function through Ajax in same php file.
User enter voucher_id then call ajax that ajax call php function that function is in same file.
How to call that function.

function of PHP code:-

function voucherExist($voucherNo, $sCID, $type){
        global $pncon;
        $uRow = $pncon->query("SELECT * FROM transactions WHERE voucher_no = '{$voucherNo}' AND company_ID = '{$sCID}' AND type = '{$type}'");
        return $uRow;
    }

Ajax code:-

<script type="text/javascript">
            $(document).ready(function (){
                $('#voucher_no').on('change', function () {
                    var voucher_no = $('#voucher_no').val();
                    $.ajax({
                        url: "bankVoucherAddEdit.php",
                        type: "post",
                        data: "voucherNo"
                    });
                });
            });
        </script>
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2

Answers


  1. 0

    The thing is that you cannot directly call a PHP function from JS. You can achieve this by RESTful API. They are quite simpler and Standard.

    In your case, Send any post value as a flag from JS to PHP, if that POST value exists then call PHP function

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  2. 0

    You can get an idea from the below:

    <? php 
    function yourFunction($data){
    
     return $data;
    }

    if (isset($_POST['voucherNo'])) {
        echo yourFunction($_POST['voucherNo']);
    }
?>

<script>
    $.ajax({
        url: 'bankVoucherAddEdit.php',
        type: 'post',
        data: { "voucherNo": voucher_no },
        success: function(response) { console.log(response); }
    });
</script>
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