Application of CURL and PHP-CLI [CLI]

<code>echo php_sapi_name(); //如果是CLI模式下访问就输出CLI,如果是Apache就是apache2handler... </code>

<code>D:\wamp\bin\php\php5.3.8>php -help
Usage: php [options] [-f] <file> [--] [args...]
       php [options] -r <code> [--] [args...]
       php [options] [-B <begin_code>] -R <code> [-E <end_code>] [--] [args...]
       php [options] [-B <begin_code>] -F <file> [-E <end_code>] [--] [args...]
       php [options] -- [args...]
       php [options] -a

  -a               Run interactively
  -c <path>|<file> Look for php.ini file in this directory
  -n               No php.ini file will be used
  -d foo[=bar]     Define INI entry foo with value 'bar'
  -e               Generate extended information for debugger/profiler
  -f <file>        Parse and execute <file>.
  -h               This help
  -i               PHP information
  -l               Syntax check only (lint)
  -m               Show compiled in modules
  -r <code>        Run PHP <code> without using script tags <?..?>
  -B <begin_code>  Run PHP <begin_code> before processing input lines
  -R <code>        Run PHP <code> for every input line
  -F <file>        Parse and execute <file> for every input line
  -E <end_code>    Run PHP <end_code> after processing all input lines
  -H               Hide any passed arguments from external tools.
  -s               Output HTML syntax highlighted source.
  -v               Version number
  -w               Output source with stripped comments and whitespace.
  -z <file>        Load Zend extension <file>.

  args...          Arguments passed to script. Use -- args when first argument
                   starts with - or script is read from stdin

  --ini            Show configuration file names

  --rf <name>      Show information about function <name>.
  --rc <name>      Show information about class <name>.
  --re <name>      Show information about extension <name>.
  --ri <name>      Show configuration for extension <name>.</code>

<code><?php 
  echo &#39;this is php-cli&#39;
?></code>

<code># php /var/www/html/test.php
this is a php-cli 

[root@semple html]# php -f 'test.php'
this is a php-cli</code>

<code>D:\wamp\bin\php\php5.3.8>php -r "echo 'hello world';"
hello world</code>

<code>// ask for input
fwrite(STDOUT, "Enter your name: ");

// get input
$name = trim(fgets(STDIN));

// write input back
fwrite(STDOUT, "Hello, $name!");</code>

<code>D:\wamp\www>php test.php
Enter your name:

D:\wamp\www>php test.php
Enter your name: zhouzhou
Hello, zhouzhou!</code>

<code>print_r($argv); //获取具体的参数;

print_r($argc); //获取参数的数目;</code>

<code>D:\wamp\www>php test.php #本身执行的php文件就作为一个参数;
Array
(
    [0] => test.php
)
1

D:\wamp\www>php test.php arg1 arg2 arg3 arg4
Array
(
    [0] => test.php
    [1] => arg1
    [2] => arg2
    [3] => arg3
    [4] => arg4
)

5</code>

<code><?php
$args = getopt(&#39;g:m:a:&#39;); //只能是单个单词,如果不是单个单词就会出错;
print_r($args);
?></code>

<code>D:\wamp\www>php test.php -g group -m module -a age
Array
(
    [g] => group
    [m] => module
    [a] => age
)</code>

<code># php /var/www/html/web2/index.php welcome test 这个是在ci里面执行的welcome控制器里面的test方法,后面的以此类推;</code>

<code><?php
class Tools extends CI_Controller {

  public function message($to = &#39;World&#39;)
  {
    echo "Hello {$to}!".PHP_EOL;
  }
}
?></code>

<code>$ cd /path/to/project;
$ php index.php tools message
# Hello John Smith!。</code>

<code>//如果是CLI模式
if(php_sapi_name() === 'cli'){
  //检测CLI访问时没有带自定义参数;
  $path = isset($argv[1]) ? $argv[1] : '';
  $depr = '/';  
  if (!empty($path)) {
    $params = explode($depr , trim($path , $depr));
  }
  !empty($params) ? $_GET['g'] = array_shift($params) : "";
  !empty($params) ? $_GET['m'] = array_shift($params) : "";
  !empty($params) ? $_GET['a'] = array_shift($params) : "";
  if ($params and count($params) > 1) {
    // 解析剩余参数 并采用GET方式获取
    preg_replace('@(\w+),([^,\/]+)@e' , '$_GET[\'\\1\']="\\2";' , implode(',' , $params));
  }
 /*
   D:\wamp\www\sx>D:\wamp\bin\php\php5.3.8/php cli.php  group/module/action/a1/v1/a2/v2  
   Array
   (
       [g] => group
       [m] => module
       [a] => action
       [a1] => v1
       [a2] => v2
   )
  */
 
 // print_r($_GET);
 // die;
}</code>

<code>string exec ( string $command [, array &$output [, int &$return_var ]] )

echo exec('mkdir -p zhouzhou/1/2/3/') ."\n"; //创建目录树

echo exec('ls -l',$fileList) ; //本句只能输出最后一条,但如果有第二个参数的话,就可以把输出的结果作为数组元素扔进去;

echo "<pre />";
print_r($fileList); //把所有ls -l的结果都给了$fileList;
echo "<pre />";
die;</code>

<code>string shell_exec ( string $cmd ) 

$fileList = shell_exec('ls -l'); //$fileList是一个string格式,就等于linux命令在终端输出的格式,保留了\s\n等换行符</code>

<code>string system ( string $command [, int &$return_var ] )

$fileList = system('ls -l') ; //本句只能输出最后一条,但如果有第二个参数的话,就可以把输出的结果作为数组元素扔进去;</code>

<code>void passthru ( string $command [, int &$return_var ] )

passthru('ls -l'); //直接执行并输出</code>

<code>resource popen ( string $command , string $mode )
/*
返回一个和 fopen() 所返回的相同的文件指针，只不过它是单向的（只能用于读或写）并且必须用 pclose() 来关闭。此指针可以用于 fgets()，fgets() 和 fwrite()。 当模式为 'r'，返回的文件指针等于命里的 STDOUT，当模式为 'w'，返回的文件指针等于命令的 STDIN。

如果出错返回 FALSE。
 */

 $fp = popen('ls -l',"r");  //popen打一个进程通道  
 while (!feof($fp)) {  
   $out = fgets($fp, 4096);  
   echo  $out;   //输出的结果和passthru是一样的;不过要循环的取出来;
 }
 pclose($fp); </code>

<code>resource proc_open ( string $cmd , array $descriptorspec , array &$pipes [, string $cwd [, array $env [, array $other_options ]]] )

$test = "ls";  
$array =   array(  
 array("pipe","r"),   //标准输入  
 array("pipe","w"),   //标准输出内容  
 array("pipe","w")    //标准输出错误  
 );  
  
$fp = proc_open($test,$array,$pipes);   //打开一个进程通道  
echo stream_get_contents($pipes[1]);    //为什么是$pipes[1]，因为1是输出内容  
proc_close($fp); 

//类似 popen() 函数， 但是 proc_open() 提供了更加强大的控制程序执行的能力。</code>