$ _SERVER ['argv']带有HTTP GET和CLI问题 [英] $_SERVER['argv'] with HTTP GET and CLI issue

问题描述

我试图写下一个脚本来获取一些在线数据;脚本应该由 cron作业或php cli 和标准的 GET HTTP请求调用。正如PHP网站所述 $ _ SERVER ['argv'] 应该符合我的需求：

I'm trying to write down a script to fetch some online data; script should be invoked either by a cron job or php cli and with standard GET HTTP request. As stated on PHP website $_SERVER['argv'] should fit my needs:

传递给脚本的参数数组。当脚本在
命令行上运行时，可以通过C风格访问命令行
参数。当通过GET方法调用时，它将包含
查询字符串。

Array of arguments passed to the script. When the script is run on the command line, this gives C-style access to the command line parameters. When called via the GET method, this will contain the query string.

然而，我无法使它工作与标准的HTTP GET请求。 $ _ SERVER ['argv'] 未设置。

However i can't get it to work with standard HTTP GET request. $_SERVER['argv'] is not setted. What i'm missing?

<?php
    // jobs/fetch.php
    var_dump($_SERVER['argv']);
?>

CLI输出 php jobs / fetch.php -a -bhello ：

array(3) {
  [0]=>
  string(14) "jobs/fetch.php"
  [1]=>
  string(2) "-a"
  [2]=>
  string(7) "-bhello"
}

GET输出 jobs / fetch.php？a =& b = hello ：

GET output jobs/fetch.php?a=&b=hello:

$ b $

推荐答案

注意：未定义的索引：argv在jobs / fetch.php中。手册没有说明这一点，但是，如果你想 $ _ SERVER ['argc'] ， $ _ SERVER ['argv'] ， $ argc ， $ argv 当您没有在 CLI 模式，然后 php.ini 值 register_argc_argv （由于性能原因，默认关闭）。

The manual didn't state this very well, but, if you want $_SERVER['argc'], $_SERVER['argv'], $argc, $argv to be registered when you are not running in CLI mode, then the php.ini value register_argc_argv needs to be enabled in php.ini (off by default [for performance reasons]).

您可以根据脚本的运行方式执行以下操作来获取 argv 或查询字符串参数：

You could do the following to get argv, or query string args depending on how the script is running:

if (php_sapi_name() == 'cli') {
    $args = $_SERVER['argv'];
} else {
    parse_str($_SERVER['QUERY_STRING'], $args);
}

以下是 php.ini ：

Here are some details from php.ini:

; This directive determines whether PHP registers $argv & $argc each time it
; runs. $argv contains an array of all the arguments passed to PHP when a script
; is invoked. $argc contains an integer representing the number of arguments
; that were passed when the script was invoked. These arrays are extremely
; useful when running scripts from the command line. When this directive is
; enabled, registering these variables consumes CPU cycles and memory each time
; a script is executed. For performance reasons, this feature should be disabled
; on production servers.
; Note: This directive is hardcoded to On for the CLI SAPI
; Default Value: On
; Development Value: Off
; Production Value: Off
; http://php.net/register-argc-argv

另见 http://www.php.net/manual/en/reserved.variables.argv.php 和 parse_str（）。

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