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Package getoptc
Short Description C style getopt for php
License MIT
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Informations about the package getoptc
getoptc
C style getopt for php
NAME
getoptc -- get option character from command line argument list
SYNOPSIS
function getoptc($args, $optstring, &$optind, &$optarg, $opterr = true)
DESCRIPTION
The getoptc() function parses a given command line argument list and returns the next known option character. An option character is known if it has been specified in the string of accepted option characters, $optstring.
The option string may contain the following elements: individual characters, and characters followed by a colon to indiacte an option argument is to follow. If an individual character is followed by two colons, then the option argument is optional; $optarg is set to the rest of the current word. It does not matter to getoptc() if a following argument has leading whitespace.
On return from getoptc(), $optarg is set to an argument if it is anticipated or NULL instead. $optind contains the index to the next list argument for a subsequent call to getoptc().
The variable $optind is initialized to 1. The $optind variable may be set to another value before a set of calls to getoptc() in order to skip over more or less list entries.
The variable $opterr is intialized to true, and can be disabled to surpress error messages. see RETURN VALUES
RETURN VALUES
The getoptc() function returns the next kown option character in $optstring. If getopt() encounters a character not found in $optstring or if it detects a missing option argument, it returns ? (question mark). If $optstring has a leading : then a missing optin argument causes : to be returned instead of ?. In either case, the variable $optarg is set to the character that caused the error. The getoptc() function returns false when the argument list is exhausted. $optind will contain the index of the first non-option argument. Every subsequent call to getoptc() will return false and leave $optind and $optarg untouched.
EXAMPLES
DIAGNOSTICS
If the getoptc() function encounters a character not found in the string $optstring or detects a missing option argument it writes an error messages to STDERR. Setting $opterr to false will disable these error messages.
Option arguments are allowed to begin with -; this is reasonable but reduces the amount of error checking possible.
