PHP explains command-line parameters

PHP CLI mode, you can use $ARGC, $argv to read all the parameters and the number, such as:

[Email PROTECTED]:~/PHP/PHP1/1$ cat go1#!/usr/bin/php<? PHP     Echo $ARGC Php_eol ;     Echo Php_eol ;     Print_r $argv Php_eol;

Add executable permissions to the file:

[Email protected]:~/php/php1/1$ls-Ltotal8-rwxrwxr-x1GHOSTWU GHOSTWU337April A  the: theGo-rw-rw-r--1GHOSTWU GHOSTWU126April A  the: -Go1[email protected]:~/php/php1/1$chmodA +x go1[email protected]:~/php/php1/1$ls-Ltotal8-rwxrwxr-x1GHOSTWU GHOSTWU337April A  the: theGo-rwxrwxr-x1GHOSTWU GHOSTWU126April A  the: -Go1[email protected]:~/php/php1/1$ ./go1 Number of parameters:1Print Parameters: Array ([0] =./go1) [Email protected]:~/php/php1/1$ ./Go1 a b c number of parameters:4Print Parameters: Array ([0] =./Go1 [1] =A [2] =b [3] =c)

If you want to put go1 this file, in any directory of the operating system can be executed, we need to add environment variables, I set up a directory under the home directory Mybin, used to put their own development of the command

Tail -2 ~/bashrcfiexport PATH=~/mybin: $PATH [email protected]:  pwd/home/ghostwu/mybin[email protected]:

Echo $PATH/home/ghostwu/mybin:/home/ghostwu/bin:/home/ghostwu/.local/bin:/usr/local/sbin:/usr/local/bin:/ usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin[email protected]:

Printing $path again, has joined in, this time to copy the developed commands to the ~/mybin directory, and later in any directory of the system can be executed go1

 [email protected]:  ~/mybin$ CP  ~/php/php1/1 /go1. [ Email protected]:  ~/mybin$  Ltotal  8 -rwxrwxr-x 1  GHOSTWU GHOSTWU 126  April 09 : 44   go1  

 [Email protected]:~/mybin$ go1 parameter number:  1   print parameters: Array ([ 0 ] "=/home/ghostwu/ Mybin/go1) [email protected]:  ~/mybin$ CD/ [email protected]: /$ go1 parameter number:  Span style= "color: #800080;" >1   print parameters: Array ([ 0 ] +/home/ Ghostwu/mybin/go1) [email protected]: /$ CD/ tmp[email protected]: /tmp$ go1 parameter number:  1   print parameters: Array ([ 0 ] =/home/ghostwu/mybin/go1)  

In the Linux command line, a lot of commands, or the software has a-v parameter to display the version number, this function how to do?

"' ; if 2 ) $argv [1'-v'Go version is 1.0';     Echo $res. Php_eol;

Is it simple, 3 lines of code are done?

[Email protected]:~/mybin$ go-1.0[email protected]:ls -8  1336 April  :126   go1April   A go1[email:  protected]:

PHP explains command-line parameters