Add Leading Zeros to Mail Counter

Glad to hear it’s been helpful!

Check out the PHP function str_pad https://php.net/manual/en/function.str-pad.php

I think you’ll want to modify this function

function cf7dtx_counter(){
    $val = get_option( CF7_COUNTER, 0) + 1;  //Increment the current count
    return $val;
}

To something like this

function cf7dtx_counter(){
    $val = get_option( CF7_COUNTER, 0) + 1;  //Increment the current count
    $val = str_pad( $val , 6, '0' , STR_PAD_LEFT ); //Pad with 0s
    return $val;
}

Hope that helps!

Thanks for the superfast reply and suggestion!

I had been doing some testing and this seems to work also.

function cf7dtx_counter(){
	$val = str_pad(get_option( CF7_COUNTER, 0) + 1,6,"0",STR_PAD_LEFT); //Increment the current count
    return $val;

I am not a PHP expert but learning as much as I can.

Is one solution considered better than the other?
You have single quotes around the zero and I have double. Could I use single quotes?

Again thanks so much for the solution! — Steven

Hi Steven,

The two are equivalent. Doing it in 1 vs 2 lines is more of a stylistic choice. One advantage of 2 lines is that it is more readable, which is why I chose to present it that way. Doing it in 1 line may have some negligible performance advantages, nothing worth worrying about in this case at all. So it’s really just your preference.

There is a difference between single quotes and double quotes in PHP. In this case it doesn’t matter, but in general using single quotes is more efficient and preferable if you aren’t using $variables inside the string.

Have a good one! ??

Chris