1. Install Apache 2.4 and PHP 7.0 on Amazon Linux AMI # Remove current apache & php (If you have installed a earlier version or you are having problems. Don't worry this WILL NOT remove any of your files, and it will make backup's of any config files you have). sudo yum remove httpd* php*…
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Insert data into two tables of different databases on same instance
If both databases reside on the SAME MySQL server (and use the same user and password to connect). You simply establish the connection without picking a database, then put the name of the database in front of the table name like: INSERT INTO myDBname.myTableName (myKey) VALUES (myValue); If you have a connection to one database…
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How to update PHP to latest version on AWS EC2
Warning: Before doing anything, make backups! Remove old versions of PHP and Apache The old Apache and PHP versions in the server can conflict with the new install. So it is recommended to stop the web server and remove them using the commands: sudo service httpd stop sudo service mysqld stop sudo yum remove httpd* php*…
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Check to see if MySQL record exists
If you have ever had script that you need to check before updating/deleteing a MySQL record here is a quick code to check: if(mysql_num_rows(mysql_query("SELECT userid FROM plus_signup WHERE id = '$userid'"))) { // Code inside if block if userid is already there }
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Swapping Column Values in MySQL
If you ever need to swap column values in MySQL here is how: UPDATE TABLE s1, TABLE s2 SET s1.SWAP_A=s1.SWAP_B, s1.SWAP_B=s2.SWAP_A WHERE s1.KEY=s2.KEY Check out this article to read more.
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