Loop with php call wait until it finishes executing in each iteration

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Loop with php call wait until it finishes executing in each iteration

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Dear, I do not know how to solve this, I have a json that I receive from php in the response variable, and what I want is to go through it as I do in the for, and in turn call another php that takes a little while to respond, the The issue is that I want you to wait for me to finish executing each php call in the for, how should I use it correctly with callback I guess? but I do not understand how to do. THANK YOU!

var response = JSON.parse( ajax_request.responseText );
    // La variable response ahora contiene un objeto con los datos recibidos
        //alert (response.length);
        for (var i in response){
            var aqueMaestra = response[i].maestra;
            //aviso por mails---------------------------------
            var variable_post=ElDocumentoES+","+aqueMaestra;
            $.post("aviso-docentes.php", { variable: variable_post }, function(data){
                $("#poptexto").html("Enviando mail a "+response[i].nombre);
            });

            if(i >= response.length-1)location.reload();
        }

javascript php callback

asked by Cristian 24.01.2018 в 00:57

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1 answer

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score 0 · Accepted Answer

Using an ajax inside a loop is a bad idea, you should choose to use a recursive method:

//Data del json en array
var response = JSON.parse( ajax_request.responseText );
//Cantidad de elementos del array
var cantidad = response.length;

//Funcion que realiza el envio
function  notifica(indice){

if(indice < cantidad){
    //Muestro el texto
    $("#poptexto").html("Enviando mail a "+response[indice].nombre);
    //Preparo variables a enviar
    var obj ={
        variable:variable_post
    };
    //envio la peticion
    $.post("aviso-docentes.php",obj)
    .done(function(resp){
        //Llamo de nuevo a la funcion si hay más parametros en el array
        notifica(indice+1);
    })
    .fail(function(err){
      $("#poptexto").html("Email no enviado a "+response[indice].nombre);
    })
}else{
    $("#poptexto").html("Todos los Email han sido enviados"
}
}

//ejecuto la función
notifica(0);

In this way the function is going to execute itself with each positive request of the ajax in an orderly manner, you can adapt it to your code. Greetings