How to allow PHP scripts to accept input of options and values when executing in CLI mode

Users who are accustomed to the Linux system should know that many of the Linux commands support options and value inputs, such as rm -f hello.txt、 ls -al、 netstat -tnlAnd so on, how do you enable the input of options and values when PHP scripts are executed in CLI mode? There are two ways of doing this:

Use the getopt () function

Suppose you now need a PHP script that supports the input of three options:
-A: Value input not accepted
-B: Accept value input
-C: Accepts value input, and the value is optional

Based on the above requirements, you can write PHP scripts:

functionmain($args) {    var_dump($args);}/* * 选项字符后面不带冒号，表示该选项不支持值输入 * 选项字符后面带一个冒号，表示该选项支持值输入 * 选项字符后面带两个冒号，表示该选项支持值输入，且值可选 */$args = getopt('ab:c::');main($args);

Then use the command to execute the script, here in Linux for example, and assume that the foot name is test.php, note. The-f option is not required between/php and test.php:
./php test.php -a -b=valueOfB -c=valueOfC

Output:

Because the value of the C option is optional, let's try what happens if the C option does not pass a value:

You can see that the option with no value corresponds to the array value is False

One thing to note here is that the options and values are connected using the equals sign "=", or you can omit the equals number, and you can not use spaces to split options and values, for example -b valueOfB , otherwise you might not get a value.

getopt()Also supports options that start with two bars, for example --a , the second parameter that details can refer to getopt() $longopts

Using the $ARGV variable

If you simply want to pass some values to the script, you can use $argv this variable, for more information about this variable, see: http://php.net/manual/zh/reserved.variables.argv.php

PHP Script:

var_dump($argv);

Execute command./php test.php valueOfA valueOfB valueOfC

Output:

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The above describes how to let PHP script in the CLI mode to accept the input of options and values, including aspects of the content, I hope to be interested in PHP tutorial friends helpful.

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