One Mail Account Used As Multiple Test Email Addresses

If you wanna test mail, try add [+XXX] after your gmail/hotmail/outlook account.

Gmail:
yourmailaddress@gmail.com
=
yourmailaddress+1@gmail.com
yourmailaddress+2@gmail.com
yourmailaddress+test@gmail.com

Hotmail:
yourmailaddress@hotmail.com
=
yourmailaddress+1@hotmail.com
yourmailaddress+2@hotmail.com
yourmailaddress+test@hotmail.com

'selinux' not supported in vagrant VM

chcon -R -t httpd_sys_content_t vagrant

$ mount /dev/sda2 /vagrant/ -o defcontext="system_u:object_r:httpd_sys_content_t:s0"

apache

mount server:/export /vagrant -o context="system_u:object_r:httpd_sys_content_t:s0"

https://github.com/hashicorp/vagrant/issues/6970

Mysql文字列処理

mysql> SELECT CONCAT('My', 'S', 'QL');
        -> 'MySQL'
mysql> SELECT CONCAT('My', NULL, 'QL');
        -> NULL
mysql> SELECT CONCAT(14.3);
        -> '14.3'
mysql> SELECT CONCAT_WS(',','First name','Second name','Last Name');
        -> 'First name,Second name,Last Name'
mysql> SELECT CONCAT_WS(',','First name',NULL,'Last Name');
        -> 'First name,Last Name'

Get file data by axios|Vue.js

<template>
    <div class="col-lg-12" v-html="rawHtml">
</div>
</template>
axios.get('/assets/includes/test.html')
.then((res) => {
    if (res.status === 200) {
        this.rawHtml = res.data;
    } else {
        console.log(res.status);
    }
})
.catch((error) => {
    console.log(error);
});

Also can get json file.

Missing the MySQL extension which is required by WordPress.

Error:
Your PHP installation appears to be missing the MySQL extension which is required by WordPress.

Install below will solve. MariaDB also need.
php-mysql
php-mysqlnd

CentOS:
yum install php-mysql
yum install php-mysqlnd
# php72
yum install php72-php-mysql
yum install php72-php-mysqlnd

Ubuntu:
apt-get install php-mysql
apt-get install php-mysqlnd