Руководство по PHP
Пред. |  | След.

# escapeshellarg

(PHP 4 >= 4.0.3, PHP 5)

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.

## Список параметров

`arg`

  The argument that will be escaped.

## Возвращаемые значения

The escaped string.

## Примеры

Пример 1. escapeshellarg() example

`<?php system('ls '.escapeshellarg($dir)); ?>`

## Смотрите также

escapeshellcmd()
exec()
popen()
system()
backtick operator

Пред. | Начало | След.
Program Execution Functions | Уровень выше | escapeshellcmd