swape.net

My PHP Code-Standards Part 2

admin — Mon, 22 Mar 2010 21:34:21 +0000

Classses

Class name and and file name should have the same name.

Let us say you have a class called "myFirstClass" then your file should be myFirstClass.class.php

Remember to have some kind of comment on top of the file to describe important information about the class like author, version nr or created date.

class myFirstClass{
private $intNumber = 3;
private $strName = '';
public function getNumber(){
return $this->intNumber ;
}
}

Never access the internal variables directly. Use a public function to get or set the value.

class someClass{
private $intValue1 = 0;
private $intValue2 = 0;
public function getValue1(){
return $this->intValue1;
}
public function getValue2(){
return $this->intValue2;
}
}

Use default values instead of passing the same value every time.

class someClass{
private $intValue1 = 0;
private $intValue2 = 0;
public function getDate($strFormat = 'Y-m-d' ){
return date($strFormat);
}
}

Never echo out within a function. It is better to return a value.
This way you can choose what to do with returned value.

$objSome = new someClass();
$strReturn = 'Date: ' . $objSome->getDate() . '
';
$strReturn .= 'Week: ' . $objSome->getDate('W') . '';
echo $strReturn;
class someClass{
public function getDate($strFormat = 'Y-m-d' ){
return date($strFormat);
}
}

My PHP Code-Standards Part 1

admin — Fri, 13 Nov 2009 20:35:56 +0000

Here is a tutorial on how to write a nice and clean PHP code.

Let us start with variables.

I use prefix for variables with camel notation. This makes it easy to see and check the right variable for its type.

$strName = 'ali' ;
$intCounter = 1;
$arrData = array('a'=>'ali' , 'i'=>'is' , 'p'=>'perfect');
$blnTrigger = true;
$objMailSender = new mailSenderClass();

I use single quote for my data.

$strMyNameIs = 'Alireza';

And I use double quotes for SQL or strings that I need to have a single quote inside.

$strSQL = "SELECT * FROM person WHERE name LIKE 'ali' ";

I never use variable inside a double quote string. I break up the quote.

$strCode = "some $bad code ";// WRONG AND UGLY
$strNiceCode = 'Very ' . $strData . ' is pasted here' ;// NICE CODE

Never ever use short variables like $a or $temp or other lazy short names.
Use variable names that are understandable and describe what it contains.
And using a camelNotation makes it easy to read.
Never start with underscore or other kind of separator for names.

$strReturn = 'Nice code';

Only use underscore for constants where you can not use tha camel notation.

define('FOO_BAR','It works!');

And do not start with underscore. There are some other system variables and functions that starts with underscore like _get() or $_SESSION

Swape Gallery Light

admin — Tue, 18 Aug 2009 19:40:20 +0000

SGL is a php5 script to list pictures.
This script finds all the pictures in a directory under ./test_pic/ and makes menus based on directories.

All you have to do is putt your pictures in ./test_pic/ directory. Or edit $strPathToFiles = './test_pic'; in sgl4.class.php file.

You can organize your pictures by category, by putting it under sub-directories.

The thumbs/ directory must be writable (CHMOD 755) to generate thumbnails automatically first time you visit the site. It will help loading your images faster.

HOW TO INSTALL

All you have to do is unzip the file.
Unpack the sgl4.php and configure the paths.

Putt your pictures under ./test_pic/ directory.
And don't forget to chmod 755 thumbs directory.

SYSTEM REQUIRED.

Server with PHP5.

Download: sgl4

swape09 theme

admin — Mon, 13 Apr 2009 18:36:15 +0000

Here is my "swape09" wordpress theme.

Free to download.

850px width and centered. jQuery Ready, simple and easy. Right side menu.

rsync

admin — Sun, 01 Mar 2009 21:09:55 +0000

I sync my picture folders and my music and documents to my backup server via rsync.
I use ssh on my server. Rsync is fast way of syncing my files.

Here is the commend line

rsync -vrutzp --exclude=.DS_Store -e "ssh -p 22" /Users/swape/Sites me@myserver.com:/home/mysite

I use:

(--exclude=.DS_Store) to exclude the mac files
(-e "ssh -p 22") to use SSH port 22
(/Users/swape/Sites) my local directory
(me@myserver.com:/home/mysite) my server
(-v) verbose mode to see the output
(-r) recursive into directories
(-u) using update mode
(-t) preserve modification times
(-z) compress file data during the transfer
(-p) preserve permissions

After writing this to my console I enter the password for my server and its done!

This is the fastest way of updating my site from my local disk.
The good thing about this that I use -u so it does not upload the files that have not been changed on my local disk. You can also drop the -v and make an Automator app but then you have to make the public key for your ssh connection so you don't have to enter the password each time you running the app.

Here is a link to manual on how to make public key http://sial.org/howto/openssh/publickey-auth/

And this is the rsync manual http://samba.anu.edu.au/ftp/rsync/rsync.html

Horizontal menu

admin — Mon, 12 May 2008 20:04:04 +0000

Here is an old trick to make horizontal menu with CSS.

First you have to make a list with UL and LI tags.

class="menu">
href="http://swape.net">My homepage

href="http://linux.org">Linux.org

href="http://google.com">Link to google

Ok here is a list. Now we must make the list items to be horizontal and not vertical. So we must use CSS to set the float to be left and make the list-style: none;

.menu li{ float: left; list-style: none; }

Then we must make them look like a buttons. So we add some borders and padding and margins. Then the whole CSS code look like this:

.menu li{
float: left;
list-style: none;
font: 10px Verdana, Arial, Helvetica, sans-serif;
}
.menu li a {
display:block;
padding:3px;
margin:1px;
border:1px solid #ccc;
text-decoration:none;
color:#332;
background-color: #EEE;
}
.menu li a:hover{
color:#EEE;
background-color: #331;
}

You can download the example file here: Horizontal CSS menu

VolumeSize

admin — Thu, 24 Apr 2008 08:51:58 +0000

VolumeSize is a free small mac app that shows size of all your disks that are attached to your mac. (including the internal hard drives)

Works on PPCs and Intel Macs.

Download: VolumeSize-app

SwapeStarter

admin — Thu, 24 Apr 2008 08:49:34 +0000

This free windows program is very useful to make a startup menu from an autorun CD/DVD under windows env. Or just a menu to run a command or program.

You can list 6 different programs to start from.

All the text, heading image and titles are configurable from an ini file.

Download: my_starter

PassKeeper

admin — Thu, 24 Apr 2008 08:47:44 +0000

Sometimes it is hard to remember many passwords.

PassKeeper is password manager program to stores all your password.

You can export passwords to xml file.

PassKeeper dose also generate random passwords so you can have a strong and random made passwords that is hard to crack.

Download: passKeeper

Key Code Make

admin — Thu, 24 Apr 2008 08:44:55 +0000

Key Code Maker is free windows program for making lots of 8 digit passwords.

Very useful for administrators who makes hundreds of passwords at a time.
And you can save the password-list on a file.

Download: KCM_10

FileDate Mover v1.0

admin — Thu, 24 Apr 2008 08:41:48 +0000

FileDate Mover is a program that moves files from one directory to directory tree based on file date.
If you have a file that have a date 2006.12.24 then it makes directory called 2006/12/filename.ext.
This program runs through a directory and moves all the files to date-based-directory-tree.
You can edit the i18n.ini file to change the settings.

rprog = datemove.exe -d

If you remove -d, then it moves the files from this month too. But if you use -d, it will ignore files that where made this month.

In the zip file you find these files:

i18n.ini settings file.
datemove.exe CMD based version of this program. Run datemove in cmd for usage options.
datemoveX.exe Gui-based version of this program.
src\ Directory containing the sourcefile in php.

Download: datemove

Directory/File-chooser tool

admin — Thu, 24 Apr 2008 08:34:32 +0000

This is an open and free program.

Here is a small GUI for those old DOS command. With this program you can run programs with given file or directory input and output.

Here is how the ini file looks like:

[gui]
lprog=Title of the window goes here
lin= INPUT:
lout= OUTPUT:
lrun= RUN
lexit= CLOSE
lcof= Choose a output file / directory
lcif= Choose a input file / directory
lrunbox= "Done!"
lfot= Out File
lfit= Inn file
[run]
rprog = notepad.exe
rodir = 0
ridir = 0

rprog ::: you can choose the program to run.
rodir ::: 0=File 1=Directory
ridir ::: 0=File 1=Directory (If given file or directory dose not exist, it will be created.)

So now you can make your own windows based GUI from those good old DOS commands.

Download: fdc1

Checkbox value

admin — Thu, 17 Apr 2008 12:06:33 +0000

When you post a form with checkbox it dose not return any value when the checkbox is not ticked.
This is something that should have been fixed a long time ago.
But for now here is the solution:

action="?" method="post">
name="myCheckbox" type="hidden" value="0" />
name="myCheckbox" type="checkbox" />

You put an hidden input before checkbox input with the same name.
Since the last checkbox overwrite the value when it is checked, the hidden input do not return "0" but when the checkbox is not checked, the hidden input with the same name returns a "0".

So when the checkbox is checked it returns "on" and when it is not checked it returns "0"

And to make it easier to click on the ckeckbox use "label" tag around the name.

Before:

My Checkbox

After:

My Checkbox

This way you can click on the checkbox label and make it checked.
The correct way to write an checkbox checked from the start is like this:

checked="checked" name="myCheckbox" type="checkbox" />
My Checkbox

favicon2png

admin — Tue, 19 Feb 2008 20:22:21 +0000

Here is a script to download the favicon.ico files from a website and save it as a png file.

You must have imagemagick installed on your server to convert the ico file to png.

"?" method="post">
"site" name="site" type="text"
value="" />
"submit" />
< ?php
//--- favicon2png by Alireza Balouch @ swape.net 2008
if($_POST['site'] != ''){
//finding the hostname
$host = parse_url($_POST['site']);
$host = $host['host'];
$host = explode('.' , $host);
$host = $host[count($host) -2];
$filename = 'img/' . $host . '.png';
if (!is_file($filename)){
// getting the favicon
$handle = fopen( $_POST['site'] . '/favicon.ico', "rb");
$contents = stream_get_contents($handle);
fclose($handle);
file_put_contents('fav.ico' , $contents );
// converting to png
$StrExec = '/usr/local/bin/convert fav.ico -resize 24x24\> ' . $filename ;
$ret = exec($StrExec);
}
echo ' . $filename . '" />' . $_POST['site'];
}
?>

Semi-transparent png fix in IE6 with CSS

admin — Tue, 06 Feb 2007 20:30:56 +0000

This example shows how you can show semi-transparent png images in IE and don't mess up the code in other browsers. It uses only CSS and no JavaScript.I use the attribute style to make a style for other browsers then IE. And I'm using the filter style that works only for IE in the normal section.But first you have to make a semi transparent png image.
Then make an div layer and set a class name "mydiv"

And here is the CSS code:

.mydiv{
background-repeat: repeat;
position: relative;
display: block;
width:250px;
height:200px;
text-align: center;
/* Mozilla Firefox and other non IE based browsers ignores the filter style*/
filter:progid:DXImageTransform.Microsoft.AlphaImageLoader( enabled=true, sizingMethod=scale src="back_g.png");
}
/* IE ignores this part IE can not read styles with [attribute]*/
.mydiv[class]{
background-image: url(back_g.png);
}
body{
background-image: url(BG.png);
background-repeat: repeat;
}

Since IE can not show semi-transparent png images, we have to use the filter style that only works in ie. But if we use this code we have to make sure that other browsers can show the png file as well. So we use the styles with attributes. And since IE can not read this part, we can put everything that IE dose not need to read there.