PHP executes external commands with the backslash (', that is, the one below the ESC key on the keyboard, and ~ on the same top)

For example:

Echo ' WhoAmI ';

Export the database, the folder to be imported must have writable permission, the content after-u-p must be written next to each other

Echo ' mysqldump-h localhost-u$dbuser-p$dbpwd--default-character-set=utf8 $DbName >/var/$dumpFileName ';

The above describes the PHP with the anti-apostrophe (', that is, the ESC key on the keyboard, and ~ on the same top) to execute external commands, including the aspects of the content, I hope that the PHP tutorial interested in a friend helpful.

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