WordPress has a built in function for validating emails and I would advise you use that.
So you can replace your preg_match
with the wordpress is_email
else if (!preg_match("/^[A-Z0-9.%-]+@[A-Z0-9.%-]+.[A-Z]{2,4}$/", trim($_POST['email']))) {
$emailError="You entered an invalid email address.";
$hasError = true;
}
REPLACED WITH
else if ( ! is_email( trim( $_POST['email'] ) ) ) {
$emailError="You entered an invalid email address.";
$hasError = true;
}
You should also look at the wordpress codex on Data Validation, especially the Input Validation on sanitizing user inputs before using them in your code.
Related Posts:
- Contact form redirecting to page not found on send
- Should I use spl_autoload_register() in my plugin?
- WP-CLI – Selecting PHP version
- error_log() output for print_r() appearing on page
- When to use Exceptions vs Error Objects vs just plain false/null
- Hide php Notices in Dashboard
- Upgrading PHP version results in “Use of undefined constant WP_CONTENT_DIR” warning?
- WSOD but WP_DEBUG not giving any errors
- WordPress “Link has expired” error on updating posts
- get_the_content if it contains multiple lines it results in SyntaxError
- Notice: Constant already defined in wp-config.php on (non-existent) line?
- How to resolve error “Cookies are blocked due to unexpected output.”?
- Enable errors PHP WordPress 5.2
- Fatal error: Call to undefined function wpsc_cart_item_count()
- Why when I instantiate wp_error in a validation method my user registration method stops working?
- Error when requesting password reset email – wp authentication
- Does WordPress have a built in reference to the PHP version its running under? [closed]
- Can WordPress email the admin about PHP errors, while hiding them from the site?
- Get Admin Email Address From External PHP page
- How to find error in my code when the error message is pointing to WP core file?
- get_term_link() returns correct – But illogical error-messages disturb
- PHP Warning: Attempt to read property “term_id” on bool
- Mute Debug Messages from Plugins
- WordPress Script stops suddenly
- A non-numeric value encountered in /wp-includes/functions.php on line 68
- Error on wp_default_style After upgrade to php 7
- Contact form won’t submit
- Getting error when using wp_insert_post()
- Error: options page not found
- Headers already sent in Pluggable.php / homepage and wp-login error
- Which is the correct way to conditionally enqueue a CSS file?
- “Undefined index” error when saving empty array with checkboxes
- Trying do build a contact form
- Preg_Match(): compilation failed unknown property name
- Warning: Illegal string offset on theme options page [closed]
- customize wordpress database error page
- PHP if statement works in template files, but not header
- PHP-warning in post-template.php and no loading content on pages
- How to end a while loop when used in a fetch assoc function [closed]
- After adding my website to a new server, I keep getting a unexpected end of file error, but the file is identitcal to it’s original source
- Parse error: syntax error, unexpected ‘}’ [closed]
- Array to string conversion error in PHP 7.2 when returning user role as class
- javascript variable to wordpress php variable
- PHP E_WARNING being shown despite php.ini [closed]
- PHP- Why is my contact form keep showing it is invalid? [closed]
- Angular not defined [closed]
- Php file that doesn’t recognize wordpress functions
- Fatal Error wp-settings.php on line 119
- Get value from db for custom contact form
- Trying to display terms from custom taxonomy within function
- Help with accessing wp-admin page and resolving error messages
- Blog suddenly shows Archive instead of index page
- Programmatically revert to backup .htaccess a possibility?
- Prevent post from being published and show error
- Contact form – problem with displaying message about sent mail
- Illegal string offset in PHP function in via Theme Customizer
- Is it secure to use SMTP password in .php file in WordPress website?
- Can’t log in to WordPress wp-admin after adding code to functions.php
- Cannot find the php_ini configuration file to find my error log to see why my code is not working
- Fatal error login WordPress [duplicate]
- I am having errors with checkout on wordpress
- Intermittent 503 Service Unavailable Error
- Trying to get property ‘ID’ and ‘post_author’ of non-object error
- HELP: cannot log into wordpress. PHP error
- PHP error on local server install
- WordPress files break if I edit them, but adding a closing PHP tag fixes it
- Site title not showing. Please help me
- PHP Error in WordPress Theme
- WordPress database error only while loading page for 1st time
- This occurs when I open admin or front on localhost
- Is there a way to search for a missing endif?
- style.min.css code issue
- PHP is_embed error showing up
- How to send logs to plugin owner for a plugin?
- WordPress 3.0 PHP Error – notice WordPress_product_Type was called incorrectly
- WordPress default contact form
- Use get_option with $emailTo on contact page
- Headers Already Sent
- Too few arguments for printf() [closed]
- syntax error unexpected ‘}’ at 364 line
- WordPress causing all code to be displayed on line 1. Receiving multiple errors after cleaning cookies and cache
- WordPress won’t display errors at all
- custom contact form no longer working (because of 3.2?)
- Troubleshooting “loopback requests that take too long”
- Data inserted in database, but ajax calls error function
- Parse error: syntax error, unexpected ‘}’ in C:\wamp64\www\Proiect\aplicatie\user_check.php on line 18 [closed]
- Query Concatenation
- What does that mean: cannot use a scalar value as an array [closed]
- problem with php function error
- How to handle PHP parse errors?
- PHP warning Invalid argument supplied for foreach() on custom page template
- WordPress White Screen Error
- Please help! Parse error: syntax error, unexpected ‘
- Not able to see the error [closed]
- PHP warning $post->ID is null
- Execute multiple PHP Snippets causes error?
- Use of undefined constant issue
- WordPress 6.1.1 shows deprecated errors with PHP 8.1 & 8.2
- I can’t log into my website , it says “Error: Cookies are blocked due to unexpected output”
- WordPress @include( ‘template-config.php’ );