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getElementsByClassName gets one element when it comes from a php foreach


PHP: Delete an element from an arrayHow to get the value from the GET parameters?How do I get PHP errors to display?Get selected text from a drop-down list (select box) using jQueryGet the first element of an arrayHow do I get a YouTube video thumbnail from the YouTube API?How to get the client IP address in PHPHow do I remove a particular element from an array in JavaScript?Get the full URL in PHPHow does PHP 'foreach' actually work?






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;








1















I have this code in HTML where I have a foreach in PHP so that it generates each div.



I want to change the style of the div class="div-oculto" when I click Ocultar(hide) and Mostrar(show) but only in the div selected.



My problem is when I click on "Ocultar", it hides all the divs from the class "div-oculto", not just the selected one. The same happens when I click on "Mostrar". It shows me all the div class="div-oculto"s, not just the selected one.



I can't use getElementById()because each div is created according to the foreach generated by PHP.



I think I have to add an addEventListener() to my elements but I do not know how to do it so that it works.



Please, help me.



Thank you so, so much!






<script type="text/javascript">

function Mostrar()
var elements = document.getElementsByClassName('div-oculto');

for(var i = 0; i < elements.length; i++)
elements[i].style.display = 'block';




function Ocultar()
var elements = document.getElementsByClassName('div-oculto');

for(var i = 0; i < elements.length; i++)
elements[i].style.display = 'none';



</script>

<?php foreach ($cursos as $curso) ?>


<div class="contenedor-curso">

<div class="contenedor-izq">

<div class="duracion-frecuencia-horario">
<ul>
<li>Duración</li>
<li><strong><?php echo $curso->duracion; ?></strong></li>
<br>
<li>Horario</li>
<li><strong><?php echo $curso->horario; ?></strong></li>
</ul>
</div>

<div class="pedirInfo">
<input type="submit" value="Mostrar" onclick="Mostrar()">
</div>



<div class="div-oculto" id="div-oculto">
<div class="descripcionCurso">
<p><?php echo $curso->detalle; ?></p>
</div>

<div class="pedirInfo">
<input type="submit" value="Ocultar" onclick="Ocultar()">
</div>

</div>

<?php ; ?>












share|improve this question






























    1















    I have this code in HTML where I have a foreach in PHP so that it generates each div.



    I want to change the style of the div class="div-oculto" when I click Ocultar(hide) and Mostrar(show) but only in the div selected.



    My problem is when I click on "Ocultar", it hides all the divs from the class "div-oculto", not just the selected one. The same happens when I click on "Mostrar". It shows me all the div class="div-oculto"s, not just the selected one.



    I can't use getElementById()because each div is created according to the foreach generated by PHP.



    I think I have to add an addEventListener() to my elements but I do not know how to do it so that it works.



    Please, help me.



    Thank you so, so much!






    <script type="text/javascript">

    function Mostrar()
    var elements = document.getElementsByClassName('div-oculto');

    for(var i = 0; i < elements.length; i++)
    elements[i].style.display = 'block';




    function Ocultar()
    var elements = document.getElementsByClassName('div-oculto');

    for(var i = 0; i < elements.length; i++)
    elements[i].style.display = 'none';



    </script>

    <?php foreach ($cursos as $curso) ?>


    <div class="contenedor-curso">

    <div class="contenedor-izq">

    <div class="duracion-frecuencia-horario">
    <ul>
    <li>Duración</li>
    <li><strong><?php echo $curso->duracion; ?></strong></li>
    <br>
    <li>Horario</li>
    <li><strong><?php echo $curso->horario; ?></strong></li>
    </ul>
    </div>

    <div class="pedirInfo">
    <input type="submit" value="Mostrar" onclick="Mostrar()">
    </div>



    <div class="div-oculto" id="div-oculto">
    <div class="descripcionCurso">
    <p><?php echo $curso->detalle; ?></p>
    </div>

    <div class="pedirInfo">
    <input type="submit" value="Ocultar" onclick="Ocultar()">
    </div>

    </div>

    <?php ; ?>












    share|improve this question


























      1












      1








      1


      1






      I have this code in HTML where I have a foreach in PHP so that it generates each div.



      I want to change the style of the div class="div-oculto" when I click Ocultar(hide) and Mostrar(show) but only in the div selected.



      My problem is when I click on "Ocultar", it hides all the divs from the class "div-oculto", not just the selected one. The same happens when I click on "Mostrar". It shows me all the div class="div-oculto"s, not just the selected one.



      I can't use getElementById()because each div is created according to the foreach generated by PHP.



      I think I have to add an addEventListener() to my elements but I do not know how to do it so that it works.



      Please, help me.



      Thank you so, so much!






      <script type="text/javascript">

      function Mostrar()
      var elements = document.getElementsByClassName('div-oculto');

      for(var i = 0; i < elements.length; i++)
      elements[i].style.display = 'block';




      function Ocultar()
      var elements = document.getElementsByClassName('div-oculto');

      for(var i = 0; i < elements.length; i++)
      elements[i].style.display = 'none';



      </script>

      <?php foreach ($cursos as $curso) ?>


      <div class="contenedor-curso">

      <div class="contenedor-izq">

      <div class="duracion-frecuencia-horario">
      <ul>
      <li>Duración</li>
      <li><strong><?php echo $curso->duracion; ?></strong></li>
      <br>
      <li>Horario</li>
      <li><strong><?php echo $curso->horario; ?></strong></li>
      </ul>
      </div>

      <div class="pedirInfo">
      <input type="submit" value="Mostrar" onclick="Mostrar()">
      </div>



      <div class="div-oculto" id="div-oculto">
      <div class="descripcionCurso">
      <p><?php echo $curso->detalle; ?></p>
      </div>

      <div class="pedirInfo">
      <input type="submit" value="Ocultar" onclick="Ocultar()">
      </div>

      </div>

      <?php ; ?>












      share|improve this question
















      I have this code in HTML where I have a foreach in PHP so that it generates each div.



      I want to change the style of the div class="div-oculto" when I click Ocultar(hide) and Mostrar(show) but only in the div selected.



      My problem is when I click on "Ocultar", it hides all the divs from the class "div-oculto", not just the selected one. The same happens when I click on "Mostrar". It shows me all the div class="div-oculto"s, not just the selected one.



      I can't use getElementById()because each div is created according to the foreach generated by PHP.



      I think I have to add an addEventListener() to my elements but I do not know how to do it so that it works.



      Please, help me.



      Thank you so, so much!






      <script type="text/javascript">

      function Mostrar()
      var elements = document.getElementsByClassName('div-oculto');

      for(var i = 0; i < elements.length; i++)
      elements[i].style.display = 'block';




      function Ocultar()
      var elements = document.getElementsByClassName('div-oculto');

      for(var i = 0; i < elements.length; i++)
      elements[i].style.display = 'none';



      </script>

      <?php foreach ($cursos as $curso) ?>


      <div class="contenedor-curso">

      <div class="contenedor-izq">

      <div class="duracion-frecuencia-horario">
      <ul>
      <li>Duración</li>
      <li><strong><?php echo $curso->duracion; ?></strong></li>
      <br>
      <li>Horario</li>
      <li><strong><?php echo $curso->horario; ?></strong></li>
      </ul>
      </div>

      <div class="pedirInfo">
      <input type="submit" value="Mostrar" onclick="Mostrar()">
      </div>



      <div class="div-oculto" id="div-oculto">
      <div class="descripcionCurso">
      <p><?php echo $curso->detalle; ?></p>
      </div>

      <div class="pedirInfo">
      <input type="submit" value="Ocultar" onclick="Ocultar()">
      </div>

      </div>

      <?php ; ?>








      <script type="text/javascript">

      function Mostrar()
      var elements = document.getElementsByClassName('div-oculto');

      for(var i = 0; i < elements.length; i++)
      elements[i].style.display = 'block';




      function Ocultar()
      var elements = document.getElementsByClassName('div-oculto');

      for(var i = 0; i < elements.length; i++)
      elements[i].style.display = 'none';



      </script>

      <?php foreach ($cursos as $curso) ?>


      <div class="contenedor-curso">

      <div class="contenedor-izq">

      <div class="duracion-frecuencia-horario">
      <ul>
      <li>Duración</li>
      <li><strong><?php echo $curso->duracion; ?></strong></li>
      <br>
      <li>Horario</li>
      <li><strong><?php echo $curso->horario; ?></strong></li>
      </ul>
      </div>

      <div class="pedirInfo">
      <input type="submit" value="Mostrar" onclick="Mostrar()">
      </div>



      <div class="div-oculto" id="div-oculto">
      <div class="descripcionCurso">
      <p><?php echo $curso->detalle; ?></p>
      </div>

      <div class="pedirInfo">
      <input type="submit" value="Ocultar" onclick="Ocultar()">
      </div>

      </div>

      <?php ; ?>





      <script type="text/javascript">

      function Mostrar()
      var elements = document.getElementsByClassName('div-oculto');

      for(var i = 0; i < elements.length; i++)
      elements[i].style.display = 'block';




      function Ocultar()
      var elements = document.getElementsByClassName('div-oculto');

      for(var i = 0; i < elements.length; i++)
      elements[i].style.display = 'none';



      </script>

      <?php foreach ($cursos as $curso) ?>


      <div class="contenedor-curso">

      <div class="contenedor-izq">

      <div class="duracion-frecuencia-horario">
      <ul>
      <li>Duración</li>
      <li><strong><?php echo $curso->duracion; ?></strong></li>
      <br>
      <li>Horario</li>
      <li><strong><?php echo $curso->horario; ?></strong></li>
      </ul>
      </div>

      <div class="pedirInfo">
      <input type="submit" value="Mostrar" onclick="Mostrar()">
      </div>



      <div class="div-oculto" id="div-oculto">
      <div class="descripcionCurso">
      <p><?php echo $curso->detalle; ?></p>
      </div>

      <div class="pedirInfo">
      <input type="submit" value="Ocultar" onclick="Ocultar()">
      </div>

      </div>

      <?php ; ?>






      javascript php






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Mar 8 at 23:33









      PinkClimbingApple

      10818




      10818










      asked Mar 8 at 23:28









      SteffSteff

      112




      112






















          1 Answer
          1






          active

          oldest

          votes


















          1














          Yes, you need to apply a event listener for each object that you want to click on, but not as a group. You still can use the same handler function for those groups though.
          For example:



           var ocultoElements = [];
          window.onload = function ()
          ocultoElements = document.getElementsByClassName('div-oculto');
          for (i = 0; i < elements.length; i++)
          ocultoElements[i].addEventListener("click", oculto_clickHandler.bind(this));


          function oculto_clickHandler(e)
          for (i = 0; i < ocultoElements.length; i++)
          if (ocultoElements[i] !== e.target)
          ocultoElements[i].style.display = "none";

          else
          ocultoElements[i].style.display = "block";








          share|improve this answer

























          • This would be the easiest approach. You could significantly shorten this code by using this to reference each individual item as well.

            – Nick
            Mar 8 at 23:57












          • Do I have to remove the onclick from the html tag? <input type="submit" value="Mostrar" onclick="Mostrar()"> I remove it but it does not work for the moment :(

            – Steff
            Mar 9 at 1:28












          • Firstly, you shouldn't use the same name for the class as for the id of a element, as this will lead to confusion (for you). Secondly, if you want just certain div elements to react to a specific button click event then you should target them individually in each of those click event handlers. What I wrote was a generalization approach for what you had presented.

            – Mick
            Mar 9 at 2:01











          Your Answer






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          1 Answer
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          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          1














          Yes, you need to apply a event listener for each object that you want to click on, but not as a group. You still can use the same handler function for those groups though.
          For example:



           var ocultoElements = [];
          window.onload = function ()
          ocultoElements = document.getElementsByClassName('div-oculto');
          for (i = 0; i < elements.length; i++)
          ocultoElements[i].addEventListener("click", oculto_clickHandler.bind(this));


          function oculto_clickHandler(e)
          for (i = 0; i < ocultoElements.length; i++)
          if (ocultoElements[i] !== e.target)
          ocultoElements[i].style.display = "none";

          else
          ocultoElements[i].style.display = "block";








          share|improve this answer

























          • This would be the easiest approach. You could significantly shorten this code by using this to reference each individual item as well.

            – Nick
            Mar 8 at 23:57












          • Do I have to remove the onclick from the html tag? <input type="submit" value="Mostrar" onclick="Mostrar()"> I remove it but it does not work for the moment :(

            – Steff
            Mar 9 at 1:28












          • Firstly, you shouldn't use the same name for the class as for the id of a element, as this will lead to confusion (for you). Secondly, if you want just certain div elements to react to a specific button click event then you should target them individually in each of those click event handlers. What I wrote was a generalization approach for what you had presented.

            – Mick
            Mar 9 at 2:01















          1














          Yes, you need to apply a event listener for each object that you want to click on, but not as a group. You still can use the same handler function for those groups though.
          For example:



           var ocultoElements = [];
          window.onload = function ()
          ocultoElements = document.getElementsByClassName('div-oculto');
          for (i = 0; i < elements.length; i++)
          ocultoElements[i].addEventListener("click", oculto_clickHandler.bind(this));


          function oculto_clickHandler(e)
          for (i = 0; i < ocultoElements.length; i++)
          if (ocultoElements[i] !== e.target)
          ocultoElements[i].style.display = "none";

          else
          ocultoElements[i].style.display = "block";








          share|improve this answer

























          • This would be the easiest approach. You could significantly shorten this code by using this to reference each individual item as well.

            – Nick
            Mar 8 at 23:57












          • Do I have to remove the onclick from the html tag? <input type="submit" value="Mostrar" onclick="Mostrar()"> I remove it but it does not work for the moment :(

            – Steff
            Mar 9 at 1:28












          • Firstly, you shouldn't use the same name for the class as for the id of a element, as this will lead to confusion (for you). Secondly, if you want just certain div elements to react to a specific button click event then you should target them individually in each of those click event handlers. What I wrote was a generalization approach for what you had presented.

            – Mick
            Mar 9 at 2:01













          1












          1








          1







          Yes, you need to apply a event listener for each object that you want to click on, but not as a group. You still can use the same handler function for those groups though.
          For example:



           var ocultoElements = [];
          window.onload = function ()
          ocultoElements = document.getElementsByClassName('div-oculto');
          for (i = 0; i < elements.length; i++)
          ocultoElements[i].addEventListener("click", oculto_clickHandler.bind(this));


          function oculto_clickHandler(e)
          for (i = 0; i < ocultoElements.length; i++)
          if (ocultoElements[i] !== e.target)
          ocultoElements[i].style.display = "none";

          else
          ocultoElements[i].style.display = "block";








          share|improve this answer















          Yes, you need to apply a event listener for each object that you want to click on, but not as a group. You still can use the same handler function for those groups though.
          For example:



           var ocultoElements = [];
          window.onload = function ()
          ocultoElements = document.getElementsByClassName('div-oculto');
          for (i = 0; i < elements.length; i++)
          ocultoElements[i].addEventListener("click", oculto_clickHandler.bind(this));


          function oculto_clickHandler(e)
          for (i = 0; i < ocultoElements.length; i++)
          if (ocultoElements[i] !== e.target)
          ocultoElements[i].style.display = "none";

          else
          ocultoElements[i].style.display = "block";









          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Mar 9 at 19:21









          PinkClimbingApple

          10818




          10818










          answered Mar 8 at 23:48









          MickMick

          8715




          8715












          • This would be the easiest approach. You could significantly shorten this code by using this to reference each individual item as well.

            – Nick
            Mar 8 at 23:57












          • Do I have to remove the onclick from the html tag? <input type="submit" value="Mostrar" onclick="Mostrar()"> I remove it but it does not work for the moment :(

            – Steff
            Mar 9 at 1:28












          • Firstly, you shouldn't use the same name for the class as for the id of a element, as this will lead to confusion (for you). Secondly, if you want just certain div elements to react to a specific button click event then you should target them individually in each of those click event handlers. What I wrote was a generalization approach for what you had presented.

            – Mick
            Mar 9 at 2:01

















          • This would be the easiest approach. You could significantly shorten this code by using this to reference each individual item as well.

            – Nick
            Mar 8 at 23:57












          • Do I have to remove the onclick from the html tag? <input type="submit" value="Mostrar" onclick="Mostrar()"> I remove it but it does not work for the moment :(

            – Steff
            Mar 9 at 1:28












          • Firstly, you shouldn't use the same name for the class as for the id of a element, as this will lead to confusion (for you). Secondly, if you want just certain div elements to react to a specific button click event then you should target them individually in each of those click event handlers. What I wrote was a generalization approach for what you had presented.

            – Mick
            Mar 9 at 2:01
















          This would be the easiest approach. You could significantly shorten this code by using this to reference each individual item as well.

          – Nick
          Mar 8 at 23:57






          This would be the easiest approach. You could significantly shorten this code by using this to reference each individual item as well.

          – Nick
          Mar 8 at 23:57














          Do I have to remove the onclick from the html tag? <input type="submit" value="Mostrar" onclick="Mostrar()"> I remove it but it does not work for the moment :(

          – Steff
          Mar 9 at 1:28






          Do I have to remove the onclick from the html tag? <input type="submit" value="Mostrar" onclick="Mostrar()"> I remove it but it does not work for the moment :(

          – Steff
          Mar 9 at 1:28














          Firstly, you shouldn't use the same name for the class as for the id of a element, as this will lead to confusion (for you). Secondly, if you want just certain div elements to react to a specific button click event then you should target them individually in each of those click event handlers. What I wrote was a generalization approach for what you had presented.

          – Mick
          Mar 9 at 2:01





          Firstly, you shouldn't use the same name for the class as for the id of a element, as this will lead to confusion (for you). Secondly, if you want just certain div elements to react to a specific button click event then you should target them individually in each of those click event handlers. What I wrote was a generalization approach for what you had presented.

          – Mick
          Mar 9 at 2:01



















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