escapeshellarg -- Escape a string to be used as a shell argument
Описание
string escapeshellarg ( string arg )
escapeshellarg() adds single quotes around a string
and quotes/escapes any existing single quotes allowing you to pass a
string directly to a shell function and having it be treated as a single
safe argument. This function should be used to escape individual
arguments to shell functions coming from user input. The shell functions
include exec(), system() and the
backtick operator.