Number of items in a php loop depend on another loop

Question

I need to figure it out how to build a loop which number will depend on the number previously selected in another loop.

I'm building a small application to order some food. In my first loop in the HTML I added a snippet with php to select 1 to 5 element of a particular order:

<input type="checkbox" class="showHide" value="show">Spinach Dip Platter <span>$17.99 each</span>
<select name="spinach">
<option selected value> -- Select Quantity -- </option><?php
for ($i=0; $i<=5; $i++)
{
?>
<option value="<?php echo $i;?>"><?php echo $i;?></option>
<?php
}
?>
</select>

Then, depends on how many items a customer is gonna select I want to give a limit to another loop, of a certain number. Let's say that he will select 2 items, in the next loop (which will be actually three loops of different breads) my customer can select only 2 items, instead of 5:

<label class="abread">
    <input type="checkbox" class="showHidetwo" value="show" name="alligatorbread">With Alligator or Turtle Bread add $3.00<br>
    <p>Turtle Bread</p>
    <select name="turtle">
        <option selected value> -- Select Quantity -- </option><?php
        for ($i=0; $i<=5; $i++)
        {
            ?>
            <option value="<?php echo $i;?>"><?php echo $i;?></option>
            <?php
        }
        ?>
    </select>
    <p>Aligator Bread</p>
    <select name="alligator">
        <option selected value> -- Select Quantity -- </option><?php
        for ($i=0; $i<=5; $i++)
        {
            ?>
            <option value="<?php echo $i;?>"><?php echo $i;?></option>
            <?php
        }
        ?>
    </select>
    <p>Spider Bread</p>
    <select name="spider">
        <option selected value> -- Select Quantity -- </option><?php
        for ($i=0; $i<=5; $i++)
        {
            ?>
            <option value="<?php echo $i;?>"><?php echo $i;?></option>
            <?php
        }
        ?>
    </select>
</label>

Now the number is set to five, but I want to add a dynamic variable that will depend on the first loop (name="spinach") that will set the limit to the following loops. Is it possible?

UPDATE:

I tried something like that:

<label class="tray-items">
    <input type="checkbox" class="showHide" value="show">Spinach Dip Platter <span>$17.99 each</span>
    <p class="spinach">Sourdough</p>
    <select name="spinach_sour">
        <option selected value> -- Select Quantity -- </option><?php
        for ($i=0; $i<=5; $i++)
        {
            ?>
            <option value="<?php echo $i;?>"><?php echo $i;?></option>
            <?php
        }
        $spinach_sour = $_GET["spinach_sour"]; 
        ?>
    </select>
    <p class="spinach">Pumpernickle</p>
    <select name="spinach-pumper">
        <option selected value> -- Select Quantity -- </option><?php
        for ($i=0; $i<=5; $i++)
        {
            ?>
            <option value="<?php echo $i;?>"><?php echo $i;?></option>
            <?php
        }
        $spinach_pumper = $_GET["spinach_pumper"];
        ?>
    </select>
    <label class="abread">
        <input type="checkbox" class="showHidetwo" value="show" name="alligatorbread">With Alligator or Turtle Bread add $3.00<br>
        <p>Turtle Bread</p>
        <select name="turtle">
            <option selected value> -- Select Quantity -- </option><?php
            for ($i=0; $i<=$spinach_pumper; $i++)
            {
                ?>
                <option value="<?php echo $i;?>"><?php echo $i;?></option>
                <?php
            }
            ?>
        </select>
        <p>Aligator Bread</p>
        <select name="alligator">
            <option selected value> -- Select Quantity -- </option><?php
            for ($i=0; $i<=5; $i++)
            {
                ?>
                <option value="<?php echo $i;?>"><?php echo $i;?></option>
                <?php
            }
            ?>
        </select>
        <p>Spider Bread</p>
        <select name="spider">
            <option selected value> -- Select Quantity -- </option><?php
            for ($i=0; $i<=5; $i++)
            {
                ?>
                <option value="<?php echo $i;?>"><?php echo $i;?></option>
                <?php
            }
            ?>
        </select>
    </label>
</label>

Essentially I tried to get the first variable in a global get and after having assigned to the global varible I tried to export the value and reuse in the first of the second loop but it didn't work.

Answer 1

Matto, You can use variables in your for loop.

//make sure to declare your variable, but after that you can set the 
value to whatever you like

$var = 0;

for ($i=0; $i<$var; $i++) {
    //code goes here
}