While I have successfully retrieved values from a MySQL database using a select box in PHP, I am struggling with implementing a two-level chained select box.
Does anyone have any sample code or suggestions on how to achieve this?
Thank you.
While I have successfully retrieved values from a MySQL database using a select box in PHP, I am struggling with implementing a two-level chained select box.
Does anyone have any sample code or suggestions on how to achieve this?
Thank you.
If you're working on client-side tasks, JavaScript will be your go-to for this.
<input type="checkbox" name="chck_1" id="chck_1" onclick="javascript:setValue('chck_2');"/> Checkbox 1
<input type="checkbox" name="chck_2" id="chck_2"> Checkbox 2
To achieve this in JavaScript, create a function like so:
function setValue(element)
{
var fieldElement = document.getElementById(element);
if(fieldElement.checked)
{
fieldElement.checked = false;
}
else
{
fieldElement.checked = true;
}
}
I haven't tested the code, but it should work 😉
Edit: I may have misunderstood your original message, but a similar tactic can also be applied to select boxes. You could populate them with relevant data based on the selection made in the first select box at a specified index or something.
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