Escapeshellarg

Escapeshellarg

Escapeshellarg Php

Php shell exec

Escapeshellarg In Php

Escapeshellarg — 把字符串转码为可以在 shell 命令里使用的参数 功能 :escapeshellarg 将给字符串增加一个单引号并且能引用或者转码任何已经存在的单引号,这样以确保能够直接将一个字符串传入 shell 函数,shell 函数包含 exec , system 执行运算符 (反引号).

版权声明:本文为博主原创文章,遵循 cc 4.0 by-sa 版权协议,转载请附上原文出处链接和本声明。. Executing system commands on the programming language level sounds like asking for trouble. But how to do it right and safe?Subscribe: https://www.youtube.co. 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.

Escape character php

Php Escape Double Quote

I wrote function, that gets proxy server value from the Internet Explorer (from
registry). It was tested in Windows XP Pro
(Sorry for my English)
<?php
function getProxyFromIE()
{
exec('reg query 'HKEY_CURRENT_USERSoftwareMicrosoft'.
'WindowsCurrentVersionInternet Settings' /v ProxyEnable',
$proxyenable,$proxyenable_status);
exec('reg query 'HKEY_CURRENT_USERSoftwareMicrosoft'.
'WindowsCurrentVersionInternet Settings' /v ProxyServer',
$proxyserver);
if(
$proxyenable_status!=0)
return
false; #Can't access the registry! Very very bad...
else
{
$enabled=substr($proxyenable[4],-1,1);
if(
$enabled0)
return
false;
else
{
$proxy=ereg_replace('^[ t]{1,10}ProxyServertREG_SZ[ t]{1,20}',',
$proxyserver[4]);
if(
ereg('[=;]',$proxy))
{
$proxy=explode(';',$proxy);
foreach(
$proxy as $i => $v)
{
if(
ereg('http',$v))
{
$proxy=str_replace('http=',',$v);
break;
}
}
if(@!
ereg('^[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}:'.
'[0-9]{1,5}$',$proxy))
return
false;
else
return
$proxy;
}
else
return
$proxy;
}
}
}
?>
Note, that this function returns FALSE if proxy is disabled in Internet
Explorer. This function returns ONLY HTTP proxy server.
Usage:
<?php
$proxy
=getProxyFromIE();
if(!
$proxy)
echo
'Can't get proxy!';
else
echo
$proxy;
?>