PHP. Руководство по PHP. 2005
escapeshellarg
escapeshellarg
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.
