Error https 500 for send email using mb_language PHP on ec2 AWS

Question

now im doing code for send email. this is a simple send email code. i used fresh setup EC2 on AWS to run this code.

for the setup the EC2 server. i run these commend:

sudo yum update -y
sudo yum install -y httpd24 php72 mysql57-server php72-mysqlnd
sudo service httpd start
sudo chkconfig httpd on

following this url https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/install-LAMP.html

this is very simple project for send email. i use 2 file for this

• index.php (contain form)
• email.php (contain send email code)

heres is my code on my email.php file for sending the email

<?php

mb_language("Japanese");
mb_internal_encoding("UTF-8");
$to = 'receivee@gmail.com';
$subject = 'send email。';
$subject = mb_convert_encoding($subject, "ISO-2022-JP", "UTF-8,EUC-JP,auto");
$message = "氏名（漢字）：
            {$_POST['name']} 
            メールアドレス：
            {$_POST['email']} 
            お問い合わせ内容：
            {$_POST['message']}";

$message = mb_convert_encoding($message, "ISO-2022-JP", "UTF-8,EUC-JP,auto");
$headers = "From: " .mb_encode_mimeheader("ease") ."<receive@gmail.com>";
$send_mail =  mb_send_mail($to, $subject, $message, $headers);

?>

but when i try to run it. display error

HTTP ERROR 500

i check into the error_log the problem is this

PHP Fatal error:  Uncaught Error: Call to undefined function mb_language() in

how do i fix this. please help.

Answer 1

You need to install php72-mbstring .

This can be done by running sudo yum install -y php72-mbstring .

After you run this you will want to reload/restart your apache server for the php module to be enabled.

You can do this by running service httpd restart