duanhui7329 2015-06-16 14:35
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使用javascript在PHP中更改变量值FOR

I'm trying to learn JavaScript and I would like to create a little calculator COC site. I would know if it's possible to edit a PHP variable in Javascript ?

Here is my HTML/PHP code:

In this part, in the "HDV" div, I just put 10 buttons, when I click on one, go on my JS function who display the second div named "niv caserne" and in this second div, I would change the value of the variable "$i" which is located in the for in the PHP in my JS function. For example, if I click on the button 1, my JS function will display my div "niv caserne" and the FOR go from 1 to 1, but if I click on the button 2, my JS function displays my div "niv caserne" too but the FOR go from 1 to 2, etc..

<body>
<!-- Page Content -->
<div id="container">
    <div id="HDV">
        <p>Hotel De Ville: 
            <?php
                for ($i=1; $i <= 10 ; $i++)
                { 
                    ?>
                        <button type="button" class="btn btn-default" value="<?php echo "HDV_$i" ?>" onclick="infosHDV(<?php echo $i ?>)"><?php echo $i ?></button>
                    <?php
                }
            ?>
        </p>
    </div>

    <!-- HIDE ALL OF THIS OR DISABLE BEFORE USER CHOOSE A TOWN
         WHEN HE CHOOSE A TOWN, CALCULATE AND DISPLAY ONLY THE RIGHT INFORMATION -->
    <div id="niv caserne" style="display:none">
        <p>Niveau des casernes:
            <?php
                for ($i=1; $i <= 4 ; $i++)
                { 
                    ?>
                    <div class="col-md-1">
                        <select class="form-control">
                            <option>1</option>
                            <option>2</option>
                            <option>3</option>
                            <option>4</option>
                            <option>5</option>
                            <option>6</option>
                            <option>7</option>
                            <option>8</option>
                            <option>9</option>
                            <option>10</option>
                        </select>
                    </div>
                    <?php
                }
            ?>
        </p>
    </div>

Here is my JS function:

    <script>
    function infosHDV(nivHDV)
    {
        switch (nivHDV)
        {
            case 1:
                if(document.getElementById('niv caserne').style.display=='block')
                {
                    document.getElementById('niv caserne').style.display='none';
                    //Change the value of the "$i" in the FOR --> 1 from 1
                }
                else
                {
                    document.getElementById('niv caserne').style.display='block';
                }
                break;
            case 2:
                if(document.getElementById('niv caserne').style.display=='block')
                {
                    document.getElementById('niv caserne').style.display='none';
                    //Change the value of the "$i" in the FOR --> 1 from 2
                }
                else
                {
                    document.getElementById('niv caserne').style.display='block';
                }
                break;
            case 3:
    ...
                break;
    }
}
    </script>
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1条回答 默认 最新

  • dslk6326846 2015-06-16 15:14
    关注
    function generatebtn()
{
var btnHtml = '';
for (i=1; i <= 10 ; i++)
{ 
btnHtml="<button type="button" class="btn btn-default"  value="'+i+'"onclick="infosHDV("'+i+'")">"'+i+'"</button>";                   
}

    You can use javascript for loop instead of php.like above and call generatebtn() in footer. Do the same thing for other loop and defined global variable for second loop [better to rename (i) variable] and so when you want change (i) variable value you can change it /overwrite it

    评论

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