Jim's Code Bucket » PHP

Google analytics – track click to a file

me — Thu, 20 May 2010 22:57:12 +0000

File to track

php – The execution operator

me — Thu, 03 Dec 2009 13:24:21 +0000

**** note the back ticks not single quote ******

executes the contents of the ticks as if you are at the terminal but as apache or whoever your web server is. this code basically
echo `whoami`; // well who is this script running as


echo `pwd`;	// think whereami

echo `mkdir test`;	// make a directory

echo `mkdir test/anothertest`;	// make a directory in the directory created

echo nl2br(`ls`);	// list what is in this directory
`touch log.txt`;	// make a text file named log.txt
$date = date("F j, Y, g:i a");

`echo $date > log.txt`;		// writes the $date to log.txt

`echo foo >> log.txt`;		// writes foo to log.txt

echo nl2br(`cat log.txt`);	// echoes what is in log.txt
echo nl2br(`tail /opt/local/apache2/logs/error_log`);	// echoes what is in the error_log

PHP alpha numeric only strings

me — Sat, 17 Oct 2009 05:25:34 +0000

$str = “@ % * alpha numeric 0 – 9 only _ – +@_#()()++”;
$str = preg_replace(‘/[^A-Za-z0-9]/’, ”, $str);

echo $str;
returns alphanumeric09only

PHP Short tags

me — Sat, 10 Oct 2009 04:32:52 +0000

enable by setting the flag in .htaccess

php_flag short_open_tag on

Open php.ini ( /etc/php.ini or /usr/local/etc/php.ini), enter:
# vi php.ini

Set short_open_tag to On:
short_open_tag = On

Save and close the file. Restart webserver:
# service httpd restart
or
# /etc/init.d/httpd graceful

Wolf CMS – Clean uploaded file names

me — Fri, 25 Sep 2009 20:09:02 +0000

To replace spaces with underscores and then remove everything that isn’t alpha-numeric open up

wolf/plugins/file_manager.FileManagerController.php

and replace the existing upload function (approx line 259) with this.
public function upload() { $data = $_POST['upload']; $path = str_replace('..', '', $data['path']); $overwrite = isset($data['overwrite']) ? true: false;


        if (isset($_FILES)) {
			//	$file = upload_file($_FILES['upload_file']['name'], FILES_DIR.'/'.$path.'/', $_FILES['upload_file']['tmp_name'], $overwrite);

			$clean_file_name = preg_replace('/ /', '_', $_FILES['upload_file']['name'] );

			$clean_file_name = preg_replace('/[^A-Za-z0-9_.]/', '', $clean_file_name );
            $file = upload_file( $clean_file_name, FILES_DIR.'/'.$path.'/', $_FILES['upload_file']['tmp_name'], $overwrite);

if ($file === false) Flash::set('error', __('File has not been uploaded!')); } redirect(get_url('plugin/file_manager/browse/'.$path)); }

The Ternary Operator

me — Fri, 17 Jul 2009 14:17:28 +0000

$variable = condition ? if true : if false;

as in:

$age = 24;
$drinkingAge = ($age > 21) ? “have a beer” : “have an iced tea”;

echo $drinkingAge; // returns have a beer

PHP – date menus

me — Fri, 05 Jun 2009 03:59:08 +0000

$today = getdate();

$day = $today['mday'];
$month = $today['mon'];
$year = $today['year'];
$mtharr = array(“January”,”February”,”March”,”April”,
“May”,”June”,”July”,”August”,”September”,
“October”,”November”,”December”);

PHP – Trim a string without breaking words

me — Thu, 30 Apr 2009 16:00:42 +0000

neat_trim($your_text, 100);

function neat_trim( $string, $n, $close = '…' ) {

$len = strlen( $string );

if ($len > $n) {
preg_match('/(.{' . $n . '}.*?)b/', $string, $matches);
return rtrim($matches[1]) . $close;
} else {
return $string;
}

}

Codeigniter 404 page redirect to controller

me — Mon, 27 Apr 2009 23:17:18 +0000

look in your /system/application/errors/ and find the error_404.php and put this (edited to match your site of course)

header(“HTTP/1.1 404 Not Found”);
header(“location:http://www.tldomain.com/index.php?/controller/sitemap/404″);
?>

So when the 404 page loads the 404 still gets logged by apache etc… but once that happens it gets rushed of to (in this case) the site map. The 404 variable tells the controller method in this case the site map to display a this page cannot be found message.

Codeigniter app log helper

me — Fri, 24 Apr 2009 13:03:04 +0000

This is for debugging only. Ok, again…. this is for debugging only. If you use this REMOVE it once it goes live. At worst you forget to add the tag that clears the log file each time and it bloats horribly and your site gets progressively slower and slower, then your server will crash, you’ll get fired and end up homeless. But if you remove it when your done it’s pretty handy.

This goes in a helper file of your choosing and make sure you load it:

$this->load->helper('the_helper_where_you_put_this_code');

Then put this in the helper file you loaded

if ( ! function_exists('app_log')) {

function app_log($arg) {

// this is your log file, so I referenced it by viewing
// domain.com/applog.htm
$log = './applog.htm';

// to empty the file and start over the first call should begin with init_log
if( preg_match(“/^init_log/”, $arg) ) {

// writes the the file name and whatever the arg is at the start of the file
if (!write_file($log, ''.$arg, 'w') ) {

// or dies
die( 'Unable to write to log file');

}

} else {

// adds whatever the $arg is to the end of the file
if ( ! write_file($log, ''.$arg, 'a+')) {

// or dies
die( 'Unable to write to log file');

}

To use the helper:

app_log('init_log -> Whatever you want goes here');

I usually make the above call in the constructor, then after that in your methods whatever you want to track use:

app_log('blah blah blah');