how to call perl subroutine from html form

[michael12]

In html form, I can write <form method=post action=sample.pl>....</form>
How can I call a subroutine in &quot;sample.pl&quot; from this form?
It doesn't work if I write <form method=post action=sample.pl?subname>...</form>

 

[NightSoDark]

You can add a hidden field to the form. When the form is submitted, use the value in an if...else statement. If the hidden field exists, go to the subroutine desired.

A method involving ?name=value is a query string and applies to method=&quot;get&quot;, not &quot;post.&quot; You could still apply the above suggestion to such, ?subroutine_trigger=call_sub_name. But better to make it a post, otherwise all form values will be carried in the query string in the browser window.

<form method=&quot;post&quot; action=&quot;sample.pl&quot;>
<input type=&quot;hidden&quot; name=&quot;subroutine_trigger&quot; value=&quot;call_sub_name&quot;>
</form>

if ($subroutine_trigger eq &quot;call_sub_name&quot {
&call_sub_one;
} else {
&call_sub_two;
}

Crystal