PHP Execution Operators

What are the Execution Operators?
How to execute a command?


The execution operator allows us to execute a command on the operating system that hosts the web server and PHP module and then capture the output. It consists of enclosing the command to be executed in back quotes (`).

Example :

echo `dir`;

In the above example the execution operator will execute the dir command to get a listing of files in the current web server directory

Note :

With the execution operator, we begin to experience the power of PHP as server side scripting environment. There are possible security risks, so be careful while using this operator.

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