Limiting Countries List

you can try to hook into em_get_countries filter instead then remove the country using php unset

eg. in your theme functions.php or using mu-plugins

function my_countries_mod($countries){

  //add php unset to remove a country from array - $countries

  return $countries;
}
add_filter('em_get_countries','my_countries_mod');

Thanks Angelo. I now have:

function my_countries_mod($countries){

  $em_countries_array = array_diff($em_countries_array, ['AF', 'AL', 'DZ', 'AS', 'AD', 'AO', 'AQ', 'AG', 'AR', 'AM', 'AW', 'AU', 'AT', 'AZ', 'BS', 'BH', 'BD', 'BB', 'BY', 'BE', 'BZ', 'BM', 'BJ', 'BT', 'BO', 'BA', 'BW', 'BR', 'VG', 'BN', 'BG', 'BF', 'BI', 'CI', 'KH', 'CM', 'CV', 'KY', 'CF', 'TD', 'CL', 'CN', 'CO', 'KM', 'CR', 'HR', 'CU', 'CY', 'CZ', 'KP', 'CD', 'DK', 'DJ', 'DM', 'DO', 'EC', 'EG', 'SV', 'XE', 'GQ', 'ER', 'EE', 'ET', 'FJ', 'FI', 'FR', 'PF', 'GA', 'GM', 'GE', 'DE', 'GH', 'GR', 'GL', 'GD', 'GP', 'GU', 'GT', 'GN', 'GW', 'GY', 'HT', 'HN', 'HK', 'HU', 'IS', 'IN', 'ID', 'IR', 'IQ', 'IE', 'IL', 'IT', 'JE', 'JM', 'JP', 'JO', 'KZ', 'KE', 'KI', 'KV', 'KW', 'KG', 'LA', 'LV', 'LB', 'LS', 'LR', 'LY', 'LI', 'LT', 'LU', 'MO', 'MK', 'MG', 'MW', 'MY', 'MV', 'ML', 'MT', 'MH', 'MQ', 'MU', 'MR', 'MX', 'FM', 'MD', 'MC', 'MN', 'ME', 'MA', 'MZ', 'MM', 'NA', 'NR', 'NP', 'NL', 'AN', 'NC', 'NZ', 'NI', 'NE', 'NG', 'XI', 'MP', 'NO', 'OM', 'PK', 'PW', 'PS', 'PA', 'PG', 'PY', 'PE', 'PH', 'PL', 'PT', 'PR', 'QA', 'CG', 'RN', 'RO', 'RU', 'RW', 'ST', 'KN', 'LC', 'VC', 'WS', 'SM', 'SA', 'XS', 'SN', 'RS', 'SC', 'SL', 'SG', 'SK', 'SI', 'SB', 'SO', 'ZA', 'KR', 'ES', 'LK', 'SD', 'SR', 'SZ', 'SE', 'CH', 'SY', 'TW', 'TJ', 'TZ', 'TH', 'TL', 'TG', 'TO', 'TT', 'TN', 'TR', 'TM', 'TV', 'VI', 'UG', 'UA', 'AE', 'GB','UY', 'UZ', 'VU', 'VA', 'VE', 'VN', 'XW', 'YE', 'ZM', 'ZW' ]);

  return $countries;
}

add_filter('em_get_countries','my_countries_mod');

But it’s not truncating the list. I don’t know where I’m going wrong. Also, I probably should have prefaced this by stating I’m not a developer. I’m a graphic designer who isn’t afraid to get dirty with code.

I suspect it’s one of two things: either I’m targeting values when I should be targeting keys (or vice versa), or I’m not accounting the the localized languages.

I should also let you know I tried the unset method without luck either. Another search through Stack Overflow yielded the array_diff method that I posted above, with the same results.

If you change

return $countries;

to

return 'TEST';

do you see the word TEST?

No, I don’t get “TEST” back. I get a select list with nothing in the dropdown. When I inspect element, inside the <select> element I see:

"
Warning:  array_diff_key(): Argument #1 is not an array in /home/rwbeckett/public_html/wordpress/wp-content/plugins/code-snippets/php/snippet-ops.php(383) : eval()'d code on line 3

Warning:  Invalid argument supplied for foreach() in /home/rwbeckett/public_html/wordpress/wp-content/plugins/events-manager-pro/emp-forms.php on line 437
"

It’s the same result for targeting either $em_countries_array_i18n or $em_countries_array.

Ok, no problem. That at least confirms your code is running.

Is your array_diff the correct way around? In other words is [‘AF’, ‘AL’, etc. the list you want to exclude?

Correct, I was using a list of just the keys I wanted to exclude. However I still had array_diff_key as the action. I’ve now modified the snippet to the following, using array_diff instead now:

function my_countries_mod($countries){

  $em_countries_array_i18n = array_diff($em_countries_array_i18n,['AF', 'AL', 'DZ', 'AS', 'AD', 'AO', 'AQ', 'AG', 'AR', 'AM', 'AW', 'AU', 'AT', 'AZ', 'BS', 'BH', 'BD', 'BB', 'BY', 'BE', 'BZ', 'BM', 'BJ', 'BT', 'BO', 'BA', 'BW', 'BR', 'VG', 'BN', 'BG', 'BF', 'BI', 'CI', 'KH', 'CM', 'CV', 'KY', 'CF', 'TD', 'CL', 'CN', 'CO', 'KM', 'CR', 'HR', 'CU', 'CY', 'CZ', 'KP', 'CD', 'DK', 'DJ', 'DM', 'DO', 'EC', 'EG', 'SV', 'XE', 'GQ', 'ER', 'EE', 'ET', 'FJ', 'FI', 'FR', 'PF', 'GA', 'GM', 'GE', 'DE', 'GH', 'GR', 'GL', 'GD', 'GP', 'GU', 'GT', 'GN', 'GW', 'GY', 'HT', 'HN', 'HK', 'HU', 'IS', 'IN', 'ID', 'IR', 'IQ', 'IE', 'IL', 'IT', 'JE', 'JM', 'JP', 'JO', 'KZ', 'KE', 'KI', 'KV', 'KW', 'KG', 'LA', 'LV', 'LB', 'LS', 'LR', 'LY', 'LI', 'LT', 'LU', 'MO', 'MK', 'MG', 'MW', 'MY', 'MV', 'ML', 'MT', 'MH', 'MQ', 'MU', 'MR', 'MX', 'FM', 'MD', 'MC', 'MN', 'ME', 'MA', 'MZ', 'MM', 'NA', 'NR', 'NP', 'NL', 'AN', 'NC', 'NZ', 'NI', 'NE', 'NG', 'XI', 'MP', 'NO', 'OM', 'PK', 'PW', 'PS', 'PA', 'PG', 'PY', 'PE', 'PH', 'PL', 'PT', 'PR', 'QA', 'CG', 'RN', 'RO', 'RU', 'RW', 'ST', 'KN', 'LC', 'VC', 'WS', 'SM', 'SA', 'XS', 'SN', 'RS', 'SC', 'SL', 'SG', 'SK', 'SI', 'SB', 'SO', 'ZA', 'KR', 'ES', 'LK', 'SD', 'SR', 'SZ', 'SE', 'CH', 'SY', 'TW', 'TJ', 'TZ', 'TH', 'TL', 'TG', 'TO', 'TT', 'TN', 'TR', 'TM', 'TV', 'VI', 'UG', 'UA', 'AE', 'GB','UY', 'UZ', 'VU', 'VA', 'VE', 'VN', 'XW', 'YE', 'ZM', 'ZW']);

  return $countries;
}

add_filter('em_get_countries','my_countries_mod');

This doesn’t seem to break anything, but it’s also not affecting the options in the select list either.

can you try something like

add_filter('em_get_countries','my_countries_mod',100,1);

Added; no change. It still behaves as if nothing has been modified.

I think it’s hard to know this isn’t working, but simplifying it might help.

If you want to only show the US and Canada as options, there’s no need to use array_diff at all. Just replace the array with this:

$em_countries_array = array ('US' => 'United States', 'CA' => 'Canada');

That’s having no effect either. All I can think is that it must not be getting to run last. Is there anything in php that would force it to be paid attention to over any other statements, like how CSS has “!important”?

That’s possible. You could try experimenting with a higher or lower priority (first number in the add_filter line).

I really wish I had good news for you guys, because I really appreciate everything you’ve been doing for me. Unfortunately, still no dice. I wasn’t sure if the number needed to be greater or smaller, so I tried 10000000 and 1: neither produced any changes.

sorry at the moment we don’t have a similar snippet for this however let me check if I can give you more info about this (cant promised it today though).