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Full Discussion: PHP: declared variables, strlen vs isset
Top Forums Shell Programming and Scripting PHP: declared variables, strlen vs isset Post 302976550 by stomp on Thursday 30th of June 2016 05:51:02 PM
Old 06-30-2016
Hi crimso,

Quote:
...and to limit how big the post got.
This is very appreciated indeed.

First of all. There are functions and libs for everything. Command-Line-Option Parsing may be done with getopt: Look here: PHP: getopt - Manual

(But you may ignore that, if your code works).

The following does not work:

Code:
<?php 
#!/usr/bin/php -q

If you decide to use #!, it has to be at the very beginning of the Script-File. Only then the kernel will read the following binary as interpreter for the actual file.

Further without testing the code myself, I suggest you test, if your Arg-parsing produces correct output. I suspect it may not fully work as expected and the values are not what you assume them to be. I suggest you insert some debug statements before+after Arg parsing like:

Code:
print_r($parms);
print_r($arg);
print_r($value);
print_r($host);
print(gettype($host));

A logging function would help you to debug your code independently of the running environment(webserver or command line).

Code:
#!/usr/bin/php
<?PHP
# global log-file handle
$log = NULL;
function mylog($msg=NULL) {
       $logfile="/tmp/myapp.log";  # There may be better locations than /tmp for the logfile
       global $log;
       if(!$log) {   
            # only open logfile once per script run. After the first
            # mylog() invocation the open filehandle will be used.
            # Also be lazy and let it automatically be closed at 
            # end of programm by php itself
          $log = fopen($logfile,"a");
          if(! $log) die("Cannot open Logfile: " . error_get_last());
       }
       if($msg) {
                fwrite($log,date("Y/m/d h:i:s",mktime())." : ".getmypid()." : ".(string)$msg."\n");
       }
}

The above mentioned debug statements are easily usable with such a log function(print_r needs to be told, that it returns the formated dump data and so it does not print it to stdout itself).

Code:
mylog(print_r($host,true));

PHP: Hypertext Preprocessor

PHP.net is a great and fabulous source of documentation for PHP. Nearly all functions documentation pages have directly attached real-life coding examples down at the bottom of each page.
 

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LEARN ABOUT DEBIAN

php-config5

php-config(1)							Scripting Language						     php-config(1)

NAME

       php-config - get information about PHP configuration and compile options

SYNOPSIS

       php-config [options]

DESCRIPTION

       php-config is a simple shell script for obtaining information about installed PHP configuration.

OPTIONS

       --prefix       Directory prefix where PHP is installed, e.g. /usr/local
       --includes     List of -I options with all include files
       --ldflags      LD Flags which PHP was compiled with
       --libs	      Extra libraries which PHP was compiled with
       --man-dir      The directory prefix where the manpages is installed
       --extension-dir
		      Directory where extensions are searched by default
       --include-dir  Directory prefix where header files are installed by default
       --php-binary   Full path to php CLI or CGI binary
       --php-sapis    Show all SAPI modules installed on the Debian system
       --configure-options
		      Configure options to recreate configuration of current PHP installation
       --version      PHP version
       --vernum       PHP version as integer

       SEE ALSO
	      php(1)

VERSION INFORMATION

       This manpage describes php, version 5.4.4-14+deb7u14.

COPYRIGHT

       Copyright (C) 1997-2010 The PHP Group

       This  source  file  is  subject to version 3.01 of the PHP license, that is bundled with this package in the file LICENSE, and is available
       through the world-wide-web at the following url:
       http://www.php.net/license/3_01.txt

       If you did not receive a copy of the PHP license and  are  unable  to  obtain  it  through  the	world-wide-web,  please  send  a  note	to
       license@php.net so we can mail you a copy immediately.

The PHP Group							       2010							     php-config(1)
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