validation - gform_field_validation for URL input -


i want change default validation message gravity forms url input only. best way of doing gform_field_validation or there alternative?

yes gform_field_validation way this.

here's untested code, think should work. notice formid , fieldid should update appropriate values, not saying regex want, found in quick search here: what best regular expression check if string valid url?

add_filter( 'gform_field_validation_formid_fieldid', 'custom_url_validation', 10, 4 );  function custom_url_validation( $result, $value, $form, $field ) {     $url_regex = "/^[a-z](?:[-a-z0-9\+\.])*:(?:\/\/(?:(?:%[0-9a-f][0-9a-f]|[-a-z0-9\._~\x{a0}-\x{d7ff}\x{f900}-\x{fdcf}\x{fdf0}-\x{ffef}\x{10000}-\x{1fffd}\x{20000}-\x{2fffd}\x{30000}-\x{3fffd}\x{40000}-\x{4fffd}\x{50000}-\x{5fffd}\x{60000}-\x{6fffd}\x{70000}-\x{7fffd}\x{80000}-\x{8fffd}\x{90000}-\x{9fffd}\x{a0000}-\x{afffd}\x{b0000}-\x{bfffd}\x{c0000}-\x{cfffd}\x{d0000}-\x{dfffd}\x{e1000}-\x{efffd}!\$&'\(\)\*\+,;=:])*@)?(?:\[(?:(?:(?:[0-9a-f]{1,4}:){6}(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(?:\.(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3})|::(?:[0-9a-f]{1,4}:){5}(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(?:\.(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3})|(?:[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){4}(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(?:\.(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3})|(?:[0-9a-f]{1,4}:[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){3}(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(?:\.(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3})|(?:(?:[0-9a-f]{1,4}:){0,2}[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){2}(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(?:\.(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3})|(?:(?:[0-9a-f]{1,4}:){0,3}[0-9a-f]{1,4})?::[0-9a-f]{1,4}:(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(?:\.(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3})|(?:(?:[0-9a-f]{1,4}:){0,4}[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(?:\.(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3})|(?:(?:[0-9a-f]{1,4}:){0,5}[0-9a-f]{1,4})?::[0-9a-f]{1,4}|(?:(?:[0-9a-f]{1,4}:){0,6}[0-9a-f]{1,4})?::)|v[0-9a-f]+[-a-z0-9\._~!\$&'\(\)\*\+,;=:]+)\]|(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(?:\.(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3}|(?:%[0-9a-f][0-9a-f]|[-a-z0-9\._~\x{a0}-\x{d7ff}\x{f900}-\x{fdcf}\x{fdf0}-\x{ffef}\x{10000}-\x{1fffd}\x{20000}-\x{2fffd}\x{30000}-\x{3fffd}\x{40000}-\x{4fffd}\x{50000}-\x{5fffd}\x{60000}-\x{6fffd}\x{70000}-\x{7fffd}\x{80000}-\x{8fffd}\x{90000}-\x{9fffd}\x{a0000}-\x{afffd}\x{b0000}-\x{bfffd}\x{c0000}-\x{cfffd}\x{d0000}-\x{dfffd}\x{e1000}-\x{efffd}!\$&'\(\)\*\+,;=@])*)(?::[0-9]*)?(?:\/(?:(?:%[0-9a-f][0-9a-f]|[-a-z0-9\._~\x{a0}-\x{d7ff}\x{f900}-\x{fdcf}\x{fdf0}-\x{ffef}\x{10000}-\x{1fffd}\x{20000}-\x{2fffd}\x{30000}-\x{3fffd}\x{40000}-\x{4fffd}\x{50000}-\x{5fffd}\x{60000}-\x{6fffd}\x{70000}-\x{7fffd}\x{80000}-\x{8fffd}\x{90000}-\x{9fffd}\x{a0000}-\x{afffd}\x{b0000}-\x{bfffd}\x{c0000}-\x{cfffd}\x{d0000}-\x{dfffd}\x{e1000}-\x{efffd}!\$&'\(\)\*\+,;=:@]))*)*|\/(?:(?:(?:(?:%[0-9a-f][0-9a-f]|[-a-z0-9\._~\x{a0}-\x{d7ff}\x{f900}-\x{fdcf}\x{fdf0}-\x{ffef}\x{10000}-\x{1fffd}\x{20000}-\x{2fffd}\x{30000}-\x{3fffd}\x{40000}-\x{4fffd}\x{50000}-\x{5fffd}\x{60000}-\x{6fffd}\x{70000}-\x{7fffd}\x{80000}-\x{8fffd}\x{90000}-\x{9fffd}\x{a0000}-\x{afffd}\x{b0000}-\x{bfffd}\x{c0000}-\x{cfffd}\x{d0000}-\x{dfffd}\x{e1000}-\x{efffd}!\$&'\(\)\*\+,;=:@]))+)(?:\/(?:(?:%[0-9a-f][0-9a-f]|[-a-z0-9\._~\x{a0}-\x{d7ff}\x{f900}-\x{fdcf}\x{fdf0}-\x{ffef}\x{10000}-\x{1fffd}\x{20000}-\x{2fffd}\x{30000}-\x{3fffd}\x{40000}-\x{4fffd}\x{50000}-\x{5fffd}\x{60000}-\x{6fffd}\x{70000}-\x{7fffd}\x{80000}-\x{8fffd}\x{90000}-\x{9fffd}\x{a0000}-\x{afffd}\x{b0000}-\x{bfffd}\x{c0000}-\x{cfffd}\x{d0000}-\x{dfffd}\x{e1000}-\x{efffd}!\$&'\(\)\*\+,;=:@]))*)*)?|(?:(?:(?:%[0-9a-f][0-9a-f]|[-a-z0-9\._~\x{a0}-\x{d7ff}\x{f900}-\x{fdcf}\x{fdf0}-\x{ffef}\x{10000}-\x{1fffd}\x{20000}-\x{2fffd}\x{30000}-\x{3fffd}\x{40000}-\x{4fffd}\x{50000}-\x{5fffd}\x{60000}-\x{6fffd}\x{70000}-\x{7fffd}\x{80000}-\x{8fffd}\x{90000}-\x{9fffd}\x{a0000}-\x{afffd}\x{b0000}-\x{bfffd}\x{c0000}-\x{cfffd}\x{d0000}-\x{dfffd}\x{e1000}-\x{efffd}!\$&'\(\)\*\+,;=:@]))+)(?:\/(?:(?:%[0-9a-f][0-9a-f]|[-a-z0-9\._~\x{a0}-\x{d7ff}\x{f900}-\x{fdcf}\x{fdf0}-\x{ffef}\x{10000}-\x{1fffd}\x{20000}-\x{2fffd}\x{30000}-\x{3fffd}\x{40000}-\x{4fffd}\x{50000}-\x{5fffd}\x{60000}-\x{6fffd}\x{70000}-\x{7fffd}\x{80000}-\x{8fffd}\x{90000}-\x{9fffd}\x{a0000}-\x{afffd}\x{b0000}-\x{bfffd}\x{c0000}-\x{cfffd}\x{d0000}-\x{dfffd}\x{e1000}-\x{efffd}!\$&'\(\)\*\+,;=:@]))*)*|(?!(?:%[0-9a-f][0-9a-f]|[-a-z0-9\._~\x{a0}-\x{d7ff}\x{f900}-\x{fdcf}\x{fdf0}-\x{ffef}\x{10000}-\x{1fffd}\x{20000}-\x{2fffd}\x{30000}-\x{3fffd}\x{40000}-\x{4fffd}\x{50000}-\x{5fffd}\x{60000}-\x{6fffd}\x{70000}-\x{7fffd}\x{80000}-\x{8fffd}\x{90000}-\x{9fffd}\x{a0000}-\x{afffd}\x{b0000}-\x{bfffd}\x{c0000}-\x{cfffd}\x{d0000}-\x{dfffd}\x{e1000}-\x{efffd}!\$&'\(\)\*\+,;=:@])))(?:\?(?:(?:%[0-9a-f][0-9a-f]|[-a-z0-9\._~\x{a0}-\x{d7ff}\x{f900}-\x{fdcf}\x{fdf0}-\x{ffef}\x{10000}-\x{1fffd}\x{20000}-\x{2fffd}\x{30000}-\x{3fffd}\x{40000}-\x{4fffd}\x{50000}-\x{5fffd}\x{60000}-\x{6fffd}\x{70000}-\x{7fffd}\x{80000}-\x{8fffd}\x{90000}-\x{9fffd}\x{a0000}-\x{afffd}\x{b0000}-\x{bfffd}\x{c0000}-\x{cfffd}\x{d0000}-\x{dfffd}\x{e1000}-\x{efffd}!\$&'\(\)\*\+,;=:@])|[\x{e000}-\x{f8ff}\x{f0000}-\x{ffffd}|\x{100000}-\x{10fffd}\/\?])*)?(?:\#(?:(?:%[0-9a-f][0-9a-f]|[-a-z0-9\._~\x{a0}-\x{d7ff}\x{f900}-\x{fdcf}\x{fdf0}-\x{ffef}\x{10000}-\x{1fffd}\x{20000}-\x{2fffd}\x{30000}-\x{3fffd}\x{40000}-\x{4fffd}\x{50000}-\x{5fffd}\x{60000}-\x{6fffd}\x{70000}-\x{7fffd}\x{80000}-\x{8fffd}\x{90000}-\x{9fffd}\x{a0000}-\x{afffd}\x{b0000}-\x{bfffd}\x{c0000}-\x{cfffd}\x{d0000}-\x{dfffd}\x{e1000}-\x{efffd}!\$&'\(\)\*\+,;=:@])|[\/\?])*)?$/i";      if ( !preg_match( $url_regex, $value) ) {         $result['is_valid'] = false;         $result['message'] = 'please enter valid url!';     }      return $result; }

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