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Php error format html

Содержание
  1. How to display form errors with php
  2. Files we need
  3. The index.php file
  4. The html form
  5. Let’s break down the form
  6. The PHP file
  7. The index file
  8. Source code
  9. View on Youtube
  10. Управление выводом ошибок PHP
  11. Вывод ошибок в браузере
  12. В htaccess
  13. Запись ошибок в лог файл
  14. Отправка ошибок на e-mail
  15. Пользовательские ошибки
  16. Результат:
  17. Example PHP code for formatting error emails in HTML
  18. Displaying error message in php email form
  19. How to format php email
  20. Email confirmation email with PHP, html formatting
  21. How to format my email php mailer

How to display form errors with php

In this tutorial we are going to see how to display form errors under every input field with php. We are going to have a simple validation, that will check for empty fields.
If a field is empty we are going to display an error message under it. If both fields have values then we are going to show a success message.

Try out the form below so you have an idea on what we are going to code.
Leave the fields empty and click on the Sign up button.

If you have tried out the demo, lets start coding.

Files we need

We are going to need three files.

  • An index.php file where we are going to write the html form.
  • A script.php file to write the php code.
  • And a styles.css stylesheet to give the form the basic layout that you see in the demo.
    I am not going to cover the ccs file in this tutorial. If you want to see the css code you can download the source code.
  • All three files must be in the same folder.
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The index.php file

Let’s start with the index file in which we have a basic html structure. The important thing is that we include the script.php file in the first line of the file.
That means that every time we submit the form we will have access to the php code that we are going to write there.

<?php require("script.php") ?> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <link rel="stylesheet" href="styles.css"> <title>Displaying errors with PHP</title> </head> <body> <!-- HTML form in here --> </body> </html>

The html form

We are going to write the html form between the body tags. We are going to leave the action=»» attribute empty, that means that the form will be submitted to the same page. That’s why we included the php file at the top of the page. And we are going to set the http request method to POST method=»post».

Let’s break down the form

Here we have the input’s name set to name=»password», and the value set to the variable $password.
And again we have an error placeholder with a unique class of «password-error», and inside we have a php variable named $password_error. Again those variables will get their values from the php file.

Now let’s go to the php file and write the php code.

The PHP file

Let’s see what we have here.

<?php $username = null; $password = null; $username_error = null; $password_error = null; $success = null; if(isset($_POST['sign-up']))< $username = $_POST['username']; $password = $_POST['password']; if(empty(trim($username)))< $username_error = "Username field is empty"; >else< if(empty(trim($password)))< $password_error = "Password field is empty"; >else < $success = "Thank you for your registration"; >> >
  • From line 2-6 we set to null the php variables that we have in the html form, so the server will not throw a warning.
  • In line 8 we check if the submit button is pressed.
  • If the form is submitted we grab the username and password from the $_POST array and store them in variables in line 9 and 10.
  • In line 12 we check if the $username is empty. If so we assign a message to the $username_error variable in line 13.
  • If the $username is not empty we jump in the else clause, and we are going to check now if the $password variable is empty in line 15. Again if the password is empty we will assign a message to the $password_error variable which will be displayed in the html form.
  • And if the $password has a value, then we are going to assign the success message to the $success variable.
  • And that’s it, this is a basic example on how to display form errors with php.

Now we have a last thing to do, and that is to change the display property of the error placeholders and the success placeholder when it is required.

So let’s go back to the index file and inside the head section write the code below.

The index file

In the index file and inside the head tags and below the title tag place the code below.

<title>Displaying errors with PHP</title> <?php if($username_error != null) < ?><style>.username-error</style> <?php > if($password_error != null) < ?><style>.password-error</style> <?php > if($success != null) < ?><style>.success</style> <?php > ?>
  • In the php code-block from line 9-19 we have three if statements. In the first two statements we check the $username_error variable and the $password_error variable, and if there is a message assigned to them we change the element’s display property to «block» so we can show the error.
  • And in line 16 we do the same thing with the $success variable.

And that’s it, this is one way on how we can display form errors with php, and i thing it is the easiest.
I hope you like it.

Source code

Thanks for reading, i hope you find the article helpful.
Please leave a comment if you find any errors, so i can update the page with the correct code.

You can download the source code by pressing the button below. Get source code

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Управление выводом ошибок PHP

PHP предлагает гибкие настройки вывода ошибок, среди которых функия error_reporting($level) – задает, какие ошибки PHP попадут в отчет, могут быть значения:

  • E_ALL – все ошибки,
  • E_ERROR – критические ошибки,
  • E_WARNING – предупреждения,
  • E_PARSE – ошибки синтаксиса,
  • E_NOTICE – замечания,
  • E_CORE_ERROR – ошибки обработчика,
  • E_CORE_WARNING – предупреждения обработчика,
  • E_COMPILE_ERROR – ошибки компилятора,
  • E_COMPILE_WARNING – предупреждения компилятора,
  • E_USER_ERROR – ошибки пользователей,
  • E_USER_WARNING – предупреждения пользователей,
  • E_USER_NOTICE – уведомления пользователей.

Вывод ошибок в браузере 

error_reporting(E_ALL); ini_set('display_errors', 'On');

В htaccess

php_value error_reporting "E_ALL" php_flag display_errors On

На рабочем проекте вывод ошибок лучше сделать только у авторизированного пользователя или в крайнем случаи по IP.

Запись ошибок в лог файл 

error_reporting(E_ALL); ini_set('display_errors', 'Off'); ini_set('log_errors', 'On'); ini_set('error_log', $_SERVER['DOCUMENT_ROOT'] . '/logs/php-errors.log');

Файлы логов также не должны быть доступны из браузера, храните их в закрытой директории с файлом .htaccess:

Order Allow,Deny Deny from all

Или запретить доступ к файлам по расширению .log (заодно и другие системные файлы и исходники):

 Order Allow,Deny Deny from all

Отправка ошибок на e-mail

Ошибки можно отправлять на е-mail разработчика, но приведенные методы не работает при критических ошибках.

Первый – register_shutdown_function() регистрирует функцию, которая выполнится при завершении работы скрипта, error_get_last() получает последнюю ошибку.

register_shutdown_function('error_alert'); function error_alert() < $error = error_get_last(); if (!empty($error)) < mail('mail@example.com', 'Ошибка на сайте example.com', print_r($error, true)); >>

Стоит учесть что оператор управления ошибками (знак @) работать в данном случаи не будет и письмо будет отправляться при каждой ошибке.

Второй метод использует «пользовательский обработчик ошибок», поэтому в браузер ошибки выводится не будут.

function error_alert($type, $message, $file, $line, $vars) < $error = array( 'type' =>$type, 'message' => $message, 'file' => $file, 'line' => $line ); error_log(print_r($error, true), 1, 'mail@example.com', 'From: mail@example.com'); > set_error_handler('error_alert');

Пользовательские ошибки

PHP позволяет разработчику самому объявлять ошибки, которые выведутся в браузере или в логе. Для создания ошибки используется функция trigger_error() :

trigger_error('Пользовательская ошибка', E_USER_ERROR);

Результат:

Fatal error: Пользовательская ошибка in /public_html/script.php on line 2
  • E_USER_ERROR – критическая ошибка,
  • E_USER_WARNING – не критическая,
  • E_USER_NOTICE – сообщения которые не являются ошибками,
  • E_USER_DEPRECATED – сообщения о устаревшем коде.

Источник

Example PHP code for formatting error emails in HTML

Here are three different solutions to consider: 1. To send HTML emails via PHP Mailer, include the headers listed under «Source» on http://php.net/manual/en/function.mail.php. 2. If you’re using a particular function, modify a specific line of code to enable HTML emails and consider adding additional characters to avoid future issues with special characters. 3. Another option is to use HTML mail formatting to send a formatted email.

Displaying error message in php email form

To accomplish this task, you may use an Ajax request. Simply send a post request to your PHP file using Ajax Post Request and then manage the request in PHP. Afterwards, return either the request errors or the success message.

An instance of an Ajax request utilizing PHP.

PHP Error Handling, W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.

How to format php email

Replace ‘ ‘ with » » , but remember that special characters (like ) will only be interpreted in double-quoted strings.

Attempt modifying «From:» into «From: » , or it could be that the variable $from is lacking a value.

Sending emails with HTML formatting is possible and quite straightforward. By including headers, you can use HTML tags and even CSS to format the content of your email message.

$to = "sended@test.com"; $subject = "Test mail"; $a = "Customer Phone: "; $b = "Customer Last Name: "; $message = $a.$number.$line.$b.$LastName; $message=" 
$a
: $number 
$b
: $LastName
"; $from = "tester@test.com"; $headers = "From: $from\r\n"; $headers .= "Content-type: text/html\r\n"; mail($to,$subject,$message,$headers);

try this too., it will work. 🙂

$line = "\n"; $a = "Customer Phone: "; $b = "Customer Last Name: "; $message = $a.$number.$line.$b.$LastName; $to = "forgotten_tarek@yahoo.com"; $subject = "Umrah Booking"; $from = $mailer; $headers = "From: " . $from. "\r\n". 'Reply-To: '. $from . "\r\n" . 'X-Mailer: PHP/' . phpversion(); mail($to,$subject,$message,$headers);

Html — How to show error message on php form, Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more

Email confirmation email with PHP, html formatting

$headers .= "MIME-Version: 1.0\r\n"; $headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n";

Include $headers as the final parameter in the PHP mail function wherever it is used.

It’s important to indicate in the email header that it is an HTML format, as this will allow it to be displayed as HTML and not as simple text.

The documentation for the mail function in PHP can be found at the following URL: http://php.net/manual/en/function.mail.php.

$headers = 'MIME-Version: 1.0' . "\r\n"; $headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n"; $Password = $row['password']; $body = "Dear ".$row['fname']." 

"; $body .= "Your password is : ".$Password." 

"; $body .= "Please login with below link : 
"; $body .= SITE_URL; $email = $row['email']; $messageSubject = "Forgot Password : Quicksl"; $messageBody = $body;

PHP mail() Function, Return Value: Returns the hash value of the address parameter, or FALSE on failure.Note: Keep in mind that even if the email was accepted for delivery, it does NOT mean the email is actually sent and received! PHP Version: 4+ PHP Changelog: PHP 7.2: The headers parameter also accepts an array PHP 5.4: …

How to format my email php mailer

By including the below headers

 $headers = 'MIME-Version: 1.0' . "\r\n"; $headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n"; $headers .= 'To: Mary , Kelly ' . "\r\n"; $headers .= 'From: Birthday Reminder ' . "\r\n"; $headers .= 'Cc: birthdayarchive@example.com' . "\r\n"; $headers .= 'Bcc: birthdaycheck@example.com' . "\r\n"; mail($to, $subject, $message, $headers);

The PHP documentation includes a page about the function «mail», which can be found at http://php.net/manual/en/function.mail.php.

if you are using PHP Mailer,

$mail->MsgHTML($body); $mail->AddAttachment("images/image1.gif"); $mail->AddAttachment("images/image2.gif");

if you are using this function:

function smtpmailer($to, $from, $from_name, $subject, $body) < global $error; $mail = new PHPMailer(); // create a new object $mail->IsSMTP(); // enable SMTP $mail->SMTPDebug = 0; // debugging: 1 = errors and messages, 2 = messages only $mail->SMTPAuth = true; // authentication enabled $mail->SMTPSecure = 'ssl'; // secure transfer enabled REQUIRED for GMail $mail->Host = 'smtp.gmail.com'; $mail->Port = 465; $mail->Username = GUSER; $mail->Password = GPWD; $mail->SetFrom($from, $from_name); $mail->Subject = $subject; $mail->Body = $body; $mail->AddAddress($to); if(!$mail->Send()) < $error = 'Mail error: '.$mail->ErrorInfo; return false; > else < $error = 'Message sent!'; return true; >>

Modify the $mail->Body = $body; line by replacing it with the following code.

With this modification, PHPMailer enables you to transmit HTML emails. Additionally, by incorporating $mail->CharSet = ‘UTF-8’; , you can avoid any potential issues with special characters in the future.

To enable HTML in PHPMailer, use the following code: $mail->IsHTML(true);

Html — Display an Error Message in PHP form, Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more

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