PHP getopt Summary

Getop in PHP is used to receive cmd parameters.
For example, when you need PHP debugging in linxu, you often need parameter debugging.
Getopt is a command that can be passed in with parameters.

Usage:

Array Getopt(String $ Options[, Array $ Longopts])

Note:
　　$ OptionsEach character in the string will be used as an option character and A hyphen (-) will be used to start matching with the script (-). For example, an option character "X" corresponds to an option-X. Only a-Z, a-Z, and 0-9 are allowed.
Spaces cannot be used as option characters.

Note:An array containing the parameters passed to the current script when running under the command line.

Note: This variable is only available when register_argc_argv is enabled.

Example 1: first understand the PHP Variables$ Argv

 

<?php　　var_dump($argv);?> 

Run the following command: PHP script. php arg1 arg2 arg3:

array(4) {  [0]=>  string(10) "script.php"  [1]=>  string(4) "arg1"  [2]=>  string(4) "arg2"  [3]=>  string(4) "arg3"}

Example 2: getopt simple example

<?php　　$options = getopt("f:hp:");　　var_dump($options);?> 

Use the command: PHP script. php-F value-H or PHP script. php-fvalue-h to output the following content:

array(2) {  ["f"]=>  string(5) "value"  ["h"]=>  bool(false)}

Example 3: getopt

<?php$shortopts  = "";$shortopts .= "f:";  // Required value$shortopts .= "v::"; // Optional value$shortopts .= "abc"; // These options do not accept values$longopts  = array(    "required:",     // Required value    "optional::",    // Optional value    "option",        // No value    "opt",           // No value);$options = getopt($shortopts, $longopts);var_dump($options);?> 

PHP script. php-F "value for F"-v-a -- required value -- Optional = "Optional
Value "-- OptionWill output:

array(6) {  ["f"]=>  string(11) "value for f"  ["v"]=>  bool(false)  ["a"]=>  bool(false)  ["required"]=>  string(5) "value"  ["optional"]=>  string(14) "optional value"  ["option"]=>  bool(false)}