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system()

system - Execute an external program and display the output

Syntax

string system (string $command, int &$return_var)

Arguments

  • command - The command that will be executed.
  • return_var - If the return_var argument is present, then the return status of the executed command will be written to this variable.

Description

system() is just like the C version of the function in that it executes the given command and outputs the result.

Version

PHP 4, 5

Return value

Returns the last line of the command output on success, and FALSE on failure.