CF7 4.1 changed the validation functionality and old versions of this code no longer work. This is a fix with backward compatibility according to http://contactform7.com/2015/01/06/contact-form-7-41-beta/
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Contact Form 7 4.1 Custom Validations Fix/Error
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| <?php | |
| /* | |
| File: Contact Form 7 Custom Validation | |
| Author: Tirumal | |
| Website: http://www.code-tricks.com | |
| Description: This file, when included in functions.php of WordPress theme extends the contact form 7 data validations. | |
| Such as date, email, phone number, zip codes etc. You can also extend the validations just by providing new names and | |
| respective validaton rules either conditional or reg expressive. | |
| Please note that this is not a plugin. You need to include this file in your theme's functions.php using PHP include() | |
| function. | |
| include("cf7-custom-validation.php"); | |
| More information on this post: http://code-tricks.com/contact-form-7-custom-validation-in-wordpress/ | |
| */ | |
| //url regex | |
| function get_valid_url( $url ) { | |
| $regex = "((https?|ftp)\:\/\/)?"; // Scheme | |
| $regex .= "([a-z0-9+!*(),;?&=\$_.-]+(\:[a-z0-9+!*(),;?&=\$_.-]+)?@)?"; // User and Pass | |
| $regex .= "([a-z0-9-.]*)\.([a-z]{2,3})"; // Host or IP | |
| $regex .= "(\:[0-9]{2,5})?"; // Port | |
| $regex .= "(\/([a-z0-9+\$_-]\.?)+)*\/?"; // Path | |
| $regex .= "(\?[a-z+&\$_.-][a-z0-9;:@&%=+\/\$_.-]*)?"; // GET Query | |
| $regex .= "(#[a-z_.-][a-z0-9+\$_.-]*)?"; // Anchor | |
| return preg_match("/^$regex$/", $url); | |
| } | |
| // CF7 Custom Validation Rules | |
| function compare_date($date1, $date2) { | |
| $date1 = explode('/', $date1); | |
| $date2 = explode('/', $date2); | |
| $output = false; | |
| if($date2[2] > $date1[2]) { | |
| $output = true; | |
| } else { | |
| $output = false; | |
| } | |
| if($date2[2] == $date1[2]) { | |
| if($date2[0] > $date1[0]) { | |
| $output = true; | |
| } else { | |
| $output = false; | |
| } | |
| if($date2[0] == $date1[0]) { | |
| if($date2[1] >= $date1[1]) { | |
| $output = true; | |
| } else { | |
| $output = false; | |
| } | |
| } | |
| } | |
| if ($output) { | |
| return true; | |
| } else { | |
| return false; | |
| } | |
| } | |
| function cf7_custom_form_validation($result,$tag) { | |
| $type = $tag['type']; | |
| $name = $tag['name']; | |
| if($type == 'text*' && $_POST[$name] == ''){ | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_required' ) ); | |
| } | |
| //__________________________________________________________________________________________________ | |
| //Comparision date | |
| $date1 = $_POST['date1']; | |
| $date2 = $_POST['date2']; | |
| //CheckInDate | |
| if($name == 'date1'){ | |
| if(!compare_date($date1, $date2)) { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_check_in' ) ); | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| //CheckOutDate | |
| if($name == 'date2'){ | |
| if(!compare_date($date1, $date2)) { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_check_in' ) ); | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| //url | |
| if($name == 'url') { | |
| $url = $_POST['url']; | |
| if($url != '') { | |
| if(get_valid_url($url)){ | |
| $result['valid'] = true; | |
| } else { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_url' ) ); | |
| } | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| //emailAddress | |
| $allEmailAddresses = array('emailAddress', 'your-email', 'email'); | |
| foreach ($allEmailAddresses as $emailAddress) { | |
| if($name == $emailAddress) { | |
| $emailAddress = $_POST[$emailAddress]; | |
| if($emailAddress != '') { | |
| if(substr($emailAddress, 0, 1) == '.' || !preg_match('/^([*+!.&#$¦\'\\%\/0-9a-z^_`{}=?~:-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,4})$/i', $emailAddress)) { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_email' ) ); | |
| } | |
| } | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| //datemdy | |
| $allDates = array('datemdy', 'date1', 'date2'); | |
| foreach ($allDates as $datemdy) { | |
| if($name == 'datemdy'){ | |
| $datemdy = $_POST['datemdy']; | |
| if($datemdy != '') { | |
| if(!preg_match('/^([0-9]{2})\/([0-9]{2})\/([0-9]{4})$/', $datemdy)) { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_datemdy' ) ); | |
| } | |
| } | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| //US Zip code validation | |
| //USZipCode | |
| $USZipCodes = array('USZipCode', 'zip-code', 'zip', 'zipcode'); | |
| foreach ($USZipCodes as $USZipCode) { | |
| if($name == $USZipCode) { | |
| $USZipCode = $_POST[$USZipCode]; | |
| if($USZipCode != '') { | |
| // if(!preg_match('/^([0-9]{5})(-[0-9]{4})?$/i', $USZipCode)) { | |
| if(!preg_match('/^\d{5}(-\d{4})?$/', $USZipCode)) { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_zipcode' ) ); | |
| } | |
| } | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| // CANADA Zip code validation | |
| //CANZipCode | |
| if($name == 'CANZipCode') { | |
| $CANZipCode = $_POST['CANZipCode']; | |
| if($CANZipCode != '') { | |
| if(!preg_match('/^[ABCEGHJKLMNPRSTVXY]{1}\d{1}[A-Z]{1} *\d{1}[A-Z]{1}\d{1}$/', $CANZipCode)) { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_zipcode' ) ); | |
| } | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| // US and CANADA Zip code validation | |
| //USCANZipCode | |
| if($name == 'USCANZipCode') { | |
| $USCANZipCode = $_POST['USCANZipCode']; | |
| if($USCANZipCode != '') { | |
| if(!preg_match('/^[ABCEGHJKLMNPRSTVXY]{1}\d{1}[A-Z]{1} *\d{1}[A-Z]{1}\d{1}$/', $USCANZipCode)) { | |
| if(!preg_match('/^\d{5}(-\d{4})?$/', $USCANZipCode)) { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_zipcode' ) ); | |
| } | |
| } | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| // Indian Postal code validation | |
| //inPostalCode | |
| if($name == 'inPostalCode') { | |
| $inPostalCode = $_POST['inPostalCode']; | |
| if($inPostalCode != '') { | |
| if(!preg_match('/^[0-9]{6,6}$/', $inPostalCode)) { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_zipcode_india' ) ); | |
| } | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| //This section updated on 22nd March 2013 | |
| // It will accept character, character + numeric value | |
| // It will not accept special characters | |
| //fullName | |
| $allNames = array('fullName', 'fullName1', 'full-name', 'your-name'); | |
| foreach($allNames as $uniNames) { | |
| if($name == $uniNames) { | |
| $fullName = $_POST[$uniNames]; | |
| if($fullName != '') { | |
| if(!preg_match("/^[A-Z][a-zA-Z']+[ ]+[A-Z][a-zA-Z'\- ]*$/i", $fullName)) { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_full_name' ) ); | |
| } | |
| if(is_numeric($fullName)){ | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_full_name' ) ); | |
| } | |
| } | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| //acceptNum | |
| $acceptNumbers = array('acceptNumber', 'acceptNumber1', 'acceptNumber2', 'acceptNumber3', 'acceptNumber4', 'acceptNumber5', 'acceptNumber6'); | |
| foreach($acceptNumbers as $acceptNumber){ | |
| if($name == $acceptNumber) { | |
| $acceptNum = $_POST[$acceptNumber]; | |
| if($acceptNum != '') { | |
| if(ctype_digit($acceptNum)) { | |
| $result['valid'] = true; | |
| } else { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_numbers_only' ) ); | |
| } | |
| } | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| //faxNumber | |
| $faxNumbers = array('faxNumber', 'faxNumber1', 'faxNumber2', 'faxNumber3', 'faxNumber4', 'faxNumber5', 'faxNumber6'); | |
| foreach($faxNumbers as $faxNum) { | |
| if($name == $faxNum) { | |
| $faxNumber = $_POST[$faxNum]; | |
| $contRegex = '/^(?:1(?:[. -])?)?(?:\((?=\d{3}\)))?([2-9]\d{2})(?:(?<=\(\d{3})\))? ?(?:(?<=\d{3})[.-])?([2-9]\d{2})[. -]?(\d{4})(?: (?i:ext)\.? ?(\d{1,5}))?$/'; | |
| if ($faxNumber != '') { | |
| if(!preg_match($contRegex, $faxNumber) && strlen($faxNumber) > 10 && strlen($faxNumber) < 18) { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_fax' ) ); | |
| } | |
| } | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| //Agreement fields with the expected values. Ex. write ,,yes" to agree | |
| $agreement = array('agreement','agreement1','agreement2'); | |
| $expectedValues = array('yes', 'Yes', 'YES'); | |
| foreach ($agreement as $a => $aValue) { | |
| if($name == $aValue) { | |
| foreach ($expected_values as $i => $eValue) { | |
| if($eValue == $_POST[$name]) { | |
| $result['valid'] = true; break; | |
| } else { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'accept_terms' ) ); | |
| } | |
| } | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| //Only Characters | |
| $OnlyChars = array('onlyChar', 'onlyChar1', 'onlyChar2'); | |
| foreach($OnlyChars as $OnlyChar){ | |
| if($name == $OnlyChar) { | |
| $onlyChar = $_POST[$OnlyChar]; | |
| if($onlyChar != '') { | |
| $containsLettersOrNumbers = (preg_match('~[0-9a-z]~i', $onlyChar) > 0); | |
| if(!$containsLettersOrNumbers | |
| || is_numeric($onlyChar) | |
| || strlen($onlyChar > 64) ) { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_chars_only' ) ); | |
| } | |
| if(is_numeric($onlyChar)){ | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_chars_only' ) ); | |
| } | |
| } | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| //validPhone | |
| /* | |
| 49-4312 / 777 777 | |
| +1 (305) 613-0958 x101 | |
| (305) 613 09 58 ext 101 | |
| 3056130958 | |
| +33 1 47 37 62 24 extension 3 | |
| (016977) 1234 | |
| 04312 - 777 777 | |
| 91-12345-12345 | |
| +58 295416 7216 | |
| */ | |
| $phoneNumbersAll = array('validPhone', 'validPhone1', 'validPhone2', 'validPhone3', 'validPhone4', 'validPhone5', 'validPhone6', 'phone', 'tel', 'your-phone'); | |
| foreach($phoneNumbersAll as $validPhoneVal) { | |
| if($name == $validPhoneVal) { | |
| $validPhone = $_POST[$validPhoneVal]; | |
| if($validPhone != '') { | |
| if(preg_match('/^(?:1(?:[. -])?)?(?:\((?=\d{3}\)))?([2-9]\d{2})(?:(?<=\(\d{3})\))? ?(?:(?<=\d{3})[.-])?([2-9]\d{2})[. -]?(\d{4})(?: (?i:ext)\.? ?(\d{1,5}))?$/', $validPhone) | |
| || preg_match('/^([\+][0-9]{1,3}[\ \.\-])?([\(]{1}[0-9]{2,6}[\)])?([0-9\ \.\-\/]{3,20})((x|ext|extension)[\ ]?[0-9]{1,4})?$/', $validPhone) | |
| && strlen($validPhone) > 9 | |
| && strlen($validPhone) < 30 | |
| && (int)($validPhone)) { | |
| $result['valid'] = true; | |
| } else { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_tel' ) ); | |
| } | |
| } | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| return $result; | |
| } | |
| //add filter for text field validation | |
| add_filter('wpcf7_validate_text','cf7_custom_form_validation', 10, 2); // text field | |
| add_filter('wpcf7_validate_text*', 'cf7_custom_form_validation', 10, 2); // Req. text field | |
| /* | |
| TEXTAREA VALIDATIONS | |
| */ | |
| function cf7_custom_textarea_validation($result, $tag) { | |
| $type = $tag['type']; | |
| $name = $tag['name']; | |
| //if empty give required field error | |
| if($type == 'textarea*' && $_POST[$name] == ''){ | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_required' ) ); | |
| } | |
| //validations begins | |
| //__________________________________________________________________________________________________ | |
| // Address text area validation | |
| if($name == 'addressTa'){ | |
| $addressTa = $_POST['addressTa']; | |
| if($addressTa != '') { | |
| if(strlen($addressTa) > 300) { | |
| $result['valid'] = false; | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_too_short' ) ); | |
| } | |
| } | |
| } | |
| return $result; | |
| } | |
| //add fiter for text area validation | |
| add_filter( 'wpcf7_validate_textarea', 'cf7_custom_textarea_validation', 10, 2 ); | |
| add_filter( 'wpcf7_validate_textarea*', 'cf7_custom_textarea_validation', 10, 2 ); | |
| function cf7_custom_email_validation($result, $tag) { | |
| $type = $tag['type']; | |
| $name = $tag['name']; | |
| if($type == 'email*' && $_POST[$name] == ''){ | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_required' ) ); | |
| } | |
| //[email your-email],[email emailAddress], [email email] | |
| $allEmailAddresses = array('emailAddress', 'your-email', 'email'); | |
| foreach ($allEmailAddresses as $emailAddress) { | |
| if($name == $emailAddress) { | |
| $emailAddress = $_POST[$emailAddress]; | |
| if($emailAddress != '') { | |
| if(substr($emailAddress, 0, 1) == '.' || !preg_match('/^([*+!.&#$¦\'\\%\/0-9a-z^_`{}=?~:-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,4})$/i', $emailAddress)) { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_email' ) ); | |
| } | |
| } | |
| } | |
| } | |
| return $result; | |
| } | |
| add_filter('wpcf7_validate_email', 'cf7_custom_email_validation', 10, 2); | |
| add_filter('wpcf7_validate_email*', 'cf7_custom_email_validation', 10, 2); | |
| function cf7_custom_tel_validation($result, $tag) { | |
| $type = $tag['type']; | |
| $name = $tag['name']; | |
| if($type == 'tel*' && $_POST[$name] == ''){ | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_required' ) ); | |
| } | |
| //__________________________________________________________________________________________________ | |
| //validPhone | |
| /* | |
| 49-4312 / 777 777 | |
| +1 (305) 613-0958 x101 | |
| (305) 613 09 58 ext 101 | |
| 3056130958 | |
| +33 1 47 37 62 24 extension 3 | |
| (016977) 1234 | |
| 04312 - 777 777 | |
| 91-12345-12345 | |
| +58 295416 7216 | |
| */ | |
| $phoneNumbersAll = array('validPhone', 'validPhone1', 'validPhone2', 'validPhone3', 'validPhone4', 'validPhone5', 'validPhone6', 'phone', 'tel', 'your-phone'); | |
| foreach($phoneNumbersAll as $validPhoneVal) { | |
| if($name == $validPhoneVal) { | |
| $validPhone = $_POST[$validPhoneVal]; | |
| if($validPhone != '') { | |
| if(preg_match('/^(?:1(?:[. -])?)?(?:\((?=\d{3}\)))?([2-9]\d{2})(?:(?<=\(\d{3})\))? ?(?:(?<=\d{3})[.-])?([2-9]\d{2})[. -]?(\d{4})(?: (?i:ext)\.? ?(\d{1,5}))?$/', $validPhone) | |
| || preg_match('/^([\+][0-9]{1,3}[\ \.\-])?([\(]{1}[0-9]{2,6}[\)])?([0-9\ \.\-\/]{3,20})((x|ext|extension)[\ ]?[0-9]{1,4})?$/', $validPhone) | |
| && strlen($validPhone) > 9 | |
| && strlen($validPhone) < 30 | |
| && (int)($validPhone)) { | |
| $result['valid'] = true; | |
| } else { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_tel' ) ); | |
| } | |
| } | |
| } | |
| } | |
| //__________________________________________________________________________________________________ | |
| return $result; | |
| } | |
| add_filter('wpcf7_validate_tel', 'cf7_custom_tel_validation', 10, 2); | |
| add_filter('wpcf7_validate_tel*', 'cf7_custom_tel_validation', 10, 2); | |
| function cf7_custom_dynamictext_validation($result, $tag) { | |
| global $wpcf7_contact_form; | |
| $type = $tag['type']; | |
| $name = $tag['name']; | |
| $_POST[$name] = trim( strtr( (string) $_POST[$name], "\n", " " ) ); | |
| if ( 'dynamictext*' == $type ) { | |
| if ( '' == $_POST[$name] ) { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_required' ) ); | |
| } | |
| } | |
| //[email your-email],[email emailAddress], [email email] | |
| $allEmailAddresses = array('emailAddress', 'your-email', 'email'); | |
| foreach ($allEmailAddresses as $emailAddress) { | |
| if($name == $emailAddress) { | |
| $emailAddress = $_POST[$emailAddress]; | |
| if($emailAddress != '') { | |
| if(substr($emailAddress, 0, 1) == '.' || !preg_match('/^([*+!.&#$¦\'\\%\/0-9a-z^_`{}=?~:-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,4})$/i', $emailAddress)) { | |
| $result['valid'] = false; | |
| $result['reason'] = array( $name => wpcf7_get_message( 'invalid_email' ) ); | |
| } | |
| } | |
| } | |
| } | |
| return $result; | |
| } | |
| add_filter('wpcf7_validate_dynamictext', 'cf7_custom_dynamictext_validation', 10, 2); | |
| add_filter('wpcf7_validate_dynamictext*', 'cf7_custom_dynamictext_validation', 10, 2); | |
| /* | |
| Add Custom Error Messages | |
| */ | |
| if ( !function_exists( 'cf7_custom_validation_messages' ) ) { | |
| function cf7_custom_validation_messages( $messages ) { | |
| return array_merge( $messages, array( | |
| 'invalid_full_name' => array( | |
| 'description' => __( "User enters a name that doesn't appear to be two names (a full name)", 'contact-form-7' ), | |
| 'default' => __( 'Please include your full name.', 'contact-form-7' ) | |
| ), | |
| 'invalid_chars_only' => array( | |
| 'description' => __( "User enters a number in a field that should be characters only", 'contact-form-7' ), | |
| 'default' => __( 'Please include characters only.', 'contact-form-7' ) | |
| ), | |
| 'invalid_numbers_only' => array( | |
| 'description' => __( "User enters a character in a field that should be numbers only", 'contact-form-7' ), | |
| 'default' => __( 'Please include numbers only.', 'contact-form-7' ) | |
| ), | |
| 'invalid_zipcode' => array( | |
| 'description' => __( "User enters a zipcode that is invalid in format", 'contact-form-7' ), | |
| 'default' => __( 'Zipcode seems invalid.', 'contact-form-7' ) | |
| ), | |
| 'invalid_zipcode_india' => array( | |
| 'description' => __( "User enters an invalid Indian zipcode", 'contact-form-7' ), | |
| 'default' => __( 'Entered Pin code for India is Invalid.', 'contact-form-7' ) | |
| ), | |
| 'invalid_fax' => array( | |
| 'description' => __( "Fax number that the sender entered is invalid", 'contact-form-7' ), | |
| 'default' => __( 'Fax number seems invalid.', 'contact-form-7' ) | |
| ), | |
| 'invalid_check_in' => array( | |
| 'description' => __( "Check In date is before Check Out date", 'contact-form-7' ), | |
| 'default' => __( 'Logical Error: Check in date should be before check out date.', 'contact-form-7' ) | |
| ), | |
| 'invalid_check_out' => array( | |
| 'description' => __( "Check Out date is before Check In date", 'contact-form-7' ), | |
| 'default' => __( 'Logical Error: Check out date should be After check in date.', 'contact-form-7' ) | |
| ), | |
| 'invalid_date_mdy' => array( | |
| 'description' => __( "Entered date is not in format MM-DD-YYYY", 'contact-form-7' ), | |
| 'default' => __( 'Please enter date in MM-DD-YYYY format.', 'contact-form-7' ) | |
| ) | |
| )); | |
| } | |
| add_filter( 'wpcf7_messages', 'cf7_custom_validation_messages' ); | |
| } |
The wording on the blog post about the 4.1 beta changes was a little confusing. I've fixed the backward compatibility issue and it should work with older CF7 versions too.
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I've tested this on a version of CF7 4.0.2 and i get the following error on submit: