File size of a string
Using a string of text, find out how many kilobytes or bytes the string would and/or will take up in a file if it gets saved.
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Monthly Archiv: January, 2010
PHP script for sending RSS feed to Twitter
I found a small sample PHP script for sending your RSS feed to Twitter. You can view / copy the code here:
<?php
/*
* Script that posts multiple RSS feeds to twitter
*
* Use this with crontab (it works with CLI too)
* to post your feed’s content to twitter
*
*/
$settings [‘twitter-username’] = ‘USERNAME’;// put here the twitter username you want to auto feed
$settings [‘twitter-password’] = ‘PASSWORD’;// the twitter password that belongs to the username
$settings [‘feed-url’] =‘FEED’;// here you place the url of the RSS feed you want to post to twitter
set_time_limit(0);//We need this because otherwise php will probably time out
//Let’s see if we have the curl library
if (!extension_loaded(‘curl’) && !dl(‘curl.’ . (stristr(php_OS, ‘WIN’)?‘dll’:‘so’))) die( ‘Curl is not loaded’ );
//Now we need a file to log the last entry so we wont post it again
$file = dirname(__FILE__) . ‘/feed.log.txt’;
if ( !file_exists( $file ) ){
$fp = @fopen( $file, ‘w’);
if (! $fp )
die( ‘Could not write to log file. Check your permissions.’ );
fclose( $fp );
} else
if ( !is_writable( $file ) ) die( ‘Could not write to log file. Check your permissions.’ );
//Fetch the RSS feed
$ch = curl_init( $settings[‘feed-url’] );
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$feed = simplexml_load_string ( curl_exec($ch) );
curl_close($ch);
//Parse the feed
$messages = array();//Here we will store all the messages that we are going to post to twitter
foreach( $feed->channel->item as $item ){
$title = $item->title; // If you want to fetch the description instead use $item->description
$url = $item->link;
//Have we already posted that?
if ( $url == file_get_contents($file) ) break;
//Now do the actual posting.
//First we need to shorten the url
$ch = curl_init( ‘http://twt.gs/?url=’.$url.‘&user=’.$settings[‘twitter-username’].‘&pass=’.$settings[‘twitter-password’] );
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$shortURL = curl_exec($ch);
$resp = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ( $resp != ‘200’ )
die(‘Problem with the url shortening service. Check back later. Error: ‘.$shortURL);
//Now Calculate the twit message
$cnt = 140 – strlen($shortURL) – 1;
$messages [] = strlen($title) <= $cnt ? $title . ‘ ‘ . $shortURL : substr($title,0,$cnt–3).‘… ‘.$shortURL;
$lastURL = empty($lastURL) ? $url : $lastURL;
}
//Post to twitter
while( $message = array_pop($messages) ){
$ch = curl_init(‘http://twitter.com/statuses/update.xml’);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, ‘status=’.urlencode($message));
curl_setopt($ch, CURLOPT_USERPWD, $settings[‘twitter-username’].‘:’.$settings[‘twitter-password’]);
$response = curl_exec($ch);
$resp = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ( $resp != ‘200’ )
die(‘Problem with twitter. We should try later. Twitter reported: ‘.$response);
else
sleep(5);//Sleep 5 seconds before the next update
}
$fp = fopen($file, ‘w’);
fwrite($fp, $lastURL);
fclose($fp);
?>
What the above script is missing is the auto starting. You can use an external cronjob service if your hosting provider does not give you access to CRONjobs.
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Get Favicon image using PHP
Some websites use a small Favicon as a logo for their website. In some cases it would be nice if you are able to get this small image (icon) and use it for your PHP output. For example when you have a link to this site or when you are showing the RSS feed from this site.
I found 2 different scripts for getting the favicon from external websites using PHP scripting. Here are the scripts.
function getFavicon($url) {
$HTTPRequest = @fopen($url, 'r');
if ($HTTPRequest) {
stream_set_timeout($HTTPRequest, 0.1);
$html = fread($HTTPRequest, 4096);
$HTTPRequestData = stream_get_meta_data($HTTPRequest);
fclose($HTTPRequest);
if (!$HTTPRequestData['timed_out']) {
if (preg_match('/<link[^>]+rel="(?:shortcut )?icon"[^>]+?href="([^"]+?)"/si', $html, $matches)) {
$linkUrl = html_entity_decode($matches[1]);
if (substr($linkUrl, 0, 1) == '/') {
$urlParts = parse_url($url);
$faviconURL = $urlParts['scheme'].'://'.$urlParts['host'].$linkUrl;
} elseif (substr($linkUrl, 0, 7) == 'http://') {
$faviconURL = $linkUrl;
} elseif (substr($url, -1, 1) == '/') {
$faviconURL = $url.$linkUrl;
} else {
$faviconURL = $url.'/'.$linkUrl;
}
} else {
$urlParts = parse_url($url);
$faviconURL = $urlParts['scheme'].'://'.$urlParts['host'].'/favicon.ico';
}
$HTTPRequest = @fopen($faviconURL, 'r');
if ($HTTPRequest) {
stream_set_timeout($HTTPRequest, 0.1);
$favicon = fread($HTTPRequest, 8192);
$HTTPRequestData = stream_get_meta_data($HTTPRequest);
fclose($HTTPRequest);
if (!$HTTPRequestData['timed_out'] && strlen($favicon) < 8192) {
return $faviconURL;
}
}
}
}
return false;
}
And the other PHP script I found is:
<?php
################################################################################
#
# Favicon Class (work with favicons), ver. 1.0, June, 2006.
#
# (c) 2006 ControlStyle Company. All rights reserved.
# Developped by Nikolay I. Yarovoy, Dmitry V. Domojilov.
#
# http://www.controlstyle.com
# info@controlstyle.com
#
################################################################################
class favicon
{
var $ver = '1.1';
var $site_url = ''; # url of site
var $if_modified_since = 0; # cache
var $is_not_modified = false;
var $ico_type = 'ico'; # ico, gif or png only
var $ico_url = ''; # full uri to favicon
var $ico_exists = 'not checked'; # no comments
var $ico_data = ''; # ico binary data
var $output_data = ''; # output image binary data
# main proc
function favicon($site_url, $if_modified_since = 0)
{
$site_url = trim(str_replace('http://', '', trim($site_url)), '/');
$site_url = explode('/', $site_url);
$site_url = 'http://' . $site_url[0] . '/';
$this->site_url = $site_url;
$this->if_modified_since = $if_modified_since;
$this->get_ico_url();
$this->is_ico_exists();
$this->get_ico_data();
}
# get uri of favicon
function get_ico_url()
{
if ($this->ico_url == '')
{
$this->ico_url = $this->site_url . 'favicon.ico';
# get html of page
$h = @fopen($this->site_url, 'r');
if ($h)
{
$html = '';
while (!feof($h) and !preg_match('/<([s]*)body([^>]*)>/i', $html))
{
$html .= fread($h, 200);
}
fclose($h);
# search need <link> tag
if (preg_match('/<([^>]*)link([^>]*)(rel="icon"|rel="shortcut icon")([^>]*)>/iU', $html, $out))
{
$link_tag = $out[0];
if (preg_match('/href([s]*)=([s]*)"([^"]*)"/iU', $link_tag, $out))
{
$this->ico_type = (!(strpos($link_tag, 'png')===false)) ? 'png' : 'ico';
$ico_href = trim($out[3]);
if (strpos($ico_href, 'http://')===false)
{
$ico_href = rtrim($this->site_url, '/') . '/' . ltrim($ico_href, '/');
}
$this->ico_url = $ico_href;
}
}
}
}
return $this->ico_url;
}
# check that favicon is exists
function is_ico_exists()
{
if ($this->ico_exists=='not checked')
{
$h = @fopen($this->ico_url, 'r');
$this->ico_exists = ($h) ? true : false;
if ($h) fclose($h);
}
return $this->ico_exists;
}
# get ico data
function get_ico_data()
{
if ($this->ico_data=='' && $this->ico_url!=''
&& $this->ico_exists && !$this->is_not_modified)
{
# get ico data
$ico_z = parse_url($this->ico_url);
$ico_path = $ico_z['path'];
$ico_host = $ico_z['host'];
$ico_ims = gmdate('D, d M Y H:i:s', $this->if_modified_since) . ' GMT';
$fp = @fsockopen($ico_host, 80);
if ($fp)
{
$out = "GET {$ico_path} HTTP/1.1\r\n";
$out .= "Host: {$ico_host}\r\n";
$out .= "User-Agent=Mozilla/5.0 (Windows; U; Windows NT
5.1; ru; rv:1.8.0.3) Gecko/20060426 Firefox/1.5.0.3\r\n";
$out .= "If-Modified-Since: {$ico_ims}\r\n";
$out .= "Connection: Close\r\n\r\n";
fwrite($fp, $out);
$data = '';
while (!feof($fp)) $data .= fgets($fp, 128);
fclose($fp);
$response = substr($data, 0, 15);
$this->is_not_modified = !(strpos($response, '304')===false);
if ($this->is_not_modified)
{
$this->ico_data = 'not modified';
}
else
{
$data = explode("\r\n\r\n", $data);
if (count($data)>0)
{
unset($data[0]);
$this->ico_data = implode("\r\n\r\n", $data);
}
}
$this->output_data = '';
}
}
return $this->ico_data;
}
# get output data
function get_output_data()
{
if ($this->output_data=='')
{
if ($this->ico_data=='not modified')
{
# icon is not modified since defined time
$this->output_data = 'not modified';
}
elseif($this->ico_data=='')
{
# error(s) in getting icon data
$this->output_data = $this->empty_png();
}
else
{
# convert ico to png, gif & return
if (substr($this->ico_data, 0, 3)==='GIF') $this->ico_type = 'gif';
$this->output_data = $this->ico_data;
if ($this->ico_type==='ico')
{
$this->output_data = $this->ico2png($this->output_data);
}
if ($this->ico_type==='gif')
{
$this->output_data = $this->gif2png($this->output_data);
}
}
}
return $this->output_data;
}
# if error or icon is not found we output empty png image
function empty_png()
{
$res = '';
$im = imagecreatetruecolor(16, 16);
$color = imagecolorallocate($im, 255, 255, 255);
imagefill($im, 1, 1, $color);
# output png
ob_start();
# imagesavealpha($im, true);
imagepng($im);
imagedestroy($im);
$res = ob_get_clean();
return $res;
}
# Convert gif to png function,
# support gif-functions by GD is needed
function gif2png($gif)
{
$im2 = imagecreatefromstring($gif);
# background alpha is disabled because IE 5.5 + have bug with alpha-channels
# by default background color is white
# imagealphablending($im, false);
# imagefilledrectangle($im, 0, 0, 16, 16, $color);
# imagealphablending($im, true);
$im = imagecreatetruecolor(16, 16);
$color = imagecolorallocate($im, 255, 255, 255);
imagefill($im, 1, 1, $color);
imagecopy($im, $im2, 0, 0, 0, 0, 16, 16);
# output png
ob_start();
# imagesavealpha($im, true);
imagepng($im);
imagedestroy($im);
imagedestroy($im2);
$res = ob_get_clean();
return $res;
}
# Convert ico to png function,
# information about ico format is accessible on a site http://kainsk.tomsk.ru/g2003/sys26/oswin.htm,
function ico2png($ico)
{
$res = '';
while(!isset($tmp))
{
$tmp = '';
# get ICONDIR struct & check that it is correct ico format
$icondir = unpack('sidReserved/sidType/sidCount', substr($ico, 0, 6));
if ($icondir['idReserved']!=0 || $icondir['idType']!=1 || $icondir['idCount']<1) break;
$icondir['idEntries'] = array();
$entry = array();
for($i=0; $i<$icondir['idCount']; $i++)
{
$entry =
unpack('CbWidth/CbHeight/CbColorCount/CbReserved/swPlanes/swBitCount/LdwBytesInRes/LdwImageOffset',
substr($ico, 6 + $i*16, 16));
$icondir['idEntries'][] = $entry;
}
# select need icon & get it raw data
$iconres = '';
$bpx = 1; # bits per pixel
$idx = 0; # index of need icon
foreach($icondir['idEntries'] as $k=>$entry)
{
if ($entry['bWidth']==16 &&
isset($entry['swBitCount']) && $entry['swBitCount']>$bpx
&& $entry['swBitCount']<33)
{
$idx = $k;
$bpx = $entry['swBitCount'];
}
}
$iconres = substr($ico, $icondir['idEntries'][$idx]['dwImageOffset'], $icondir['idEntries'][$idx]['dwBytesInRes']);
unset($ico);
unset($icondir);
# getting bitmap info
$bitmap_info = array();
$bitmap_info['header'] =
unpack('LbiSize/LbiWidth/LbiHeight/SbiPlanes/SbiBitCount/LbiCompression/LbiSizeImage/LbiXPelsPerMeter/LbiYPelsPerMeter/LbiClrUsed/LbiClrImportant',
substr($iconres, 0, 40));
$bitmap_info['header']['biHeight'] = $bitmap_info['header']['biHeight'] / 2;
$number_color = 0;
if ($bitmap_info['header']['biBitCount'] > 16)
{
$number_color = 0;
$sizecolor =
$bitmap_info['header']['biWidth']*$bitmap_info['header']['biBitCount']
* $bitmap_info['header']['biHeight'] / 8;
}
elseif ( $bitmap_info['header']['biBitCount'] < 16)
{
$number_color = (int) pow(2, $bitmap_info['header']['biBitCount']);
$sizecolor =
$bitmap_info['header']['biWidth']*$bitmap_info['header']['biBitCount']
* $bitmap_info['header']['biHeight'] / 8;
if ($bitmap_info['header']['biBitCount']=='1') $sizecolor = $sizecolor * 2;
}
else return $res;
$rgb_table_size = 4 * $number_color;
for($i=0; $i<$number_color; $i++)
{
$bitmap_info['colors'][] = unpack('CrgbBlue/CrgbGreen/CrgbRed/CrgbReserved', substr($iconres, 40 + $i*4, 4));
}
$current_offset = 40 + $number_color * 4;
$arraycolor = array();
for($i=0; $i<$sizecolor; $i++)
{
$value = unpack('Cvalue', substr($iconres, $current_offset, 1));
$arraycolor[] = $value['value'];
$current_offset++;
}
# background alpha is disabled because IE 5.5 + have bug with alpha-channels
# by default background color is white
# imagealphablending($im, false);
# imagefilledrectangle($im, 0, 0, 16, 16, $color);
# imagealphablending($im, true);
$im = imagecreatetruecolor(16, 16);
$color = imagecolorallocate($im, 255, 255, 255);
imagefill($im, 1, 1, $color);
# getting mask
$alpha = '';
for($i=0; $i<16; $i++)
{
$z = unpack('Cx/Cy', substr($iconres, $current_offset, 2));
$z = str_pad(decbin($z['x']), 8, '0', STR_PAD_RIGHT) . str_pad(decbin($z['y']), 8, '0', STR_PAD_LEFT);
$alpha .= $z;
$current_offset = $current_offset + 4;
}
# drawing image
$ico_size = 16;
$off = 0; # range (0-255)
# cases for different color depth
switch ($bitmap_info['header']['biBitCount'])
{
###################### for 32 bit icons ######################
case 32:
for($y=0; $y<$ico_size; $y++)
{
for($x=0; $x<$ico_size; $x++)
{
$a = round((255-$arraycolor[$off*4+3])/2);
$a = ($a<0) ? 0 : $a;
$a = ($a>127) ? 127 : $a;
$color = imagecolorallocatealpha($im,
$arraycolor[$off*4+2], $arraycolor[$off*4+1], $arraycolor[$off*4], $a);
imagesetpixel($im, $x, $ico_size-1-$y, $color);
$off++;
}
}
break;
###################### for 24 bit icons ######################
case 24:
for($y=0; $y<$ico_size; $y++)
{
for($x=0; $x<$ico_size; $x++)
{
$valpha = ($alpha[$off]=='1') ? 127 : 0;
$color = imagecolorallocatealpha($im,
$arraycolor[$off*3+2], $arraycolor[$off*3+1], $arraycolor[$off*3],
$valpha);
imagesetpixel ($im, $x, $ico_size-1-$y, $color);
$off++;
}
}
break;
###################### for 08 bit icons ######################
case 8:
for($y=0; $y<$ico_size; $y++)
{
for($x=0; $x<$ico_size; $x++)
{
$valpha = ($alpha[$off]=='1') ? 127 : 0;
$c = $arraycolor[$off];
$c = $bitmap_info['colors'][$c];
$color = imagecolorallocatealpha($im, $c['rgbRed'], $c['rgbGreen'], $c['rgbBlue'], $valpha);
imagesetpixel ($im, $x, $ico_size-1-$y, $color);
$off++;
}
}
break;
###################### for 04 bit icons ######################
# 318 = 22 (header) + 40 (bitmap_info) + 16 * 4 (colors) + 128 (pixels) + 64 (mask)
case 4:
for($y=0; $y<$ico_size; $y++)
{
for($x=0; $x<$ico_size; $x++)
{
$valpha = ($alpha[$off]=='1') ? 127 : 0;
$c = ($arraycolor[floor($off/2)]);
$c = str_pad(decbin($c), 8, '0', STR_PAD_LEFT);
$m = (fmod($off+1, 2)==0) ? 1 : 0;
$c = bindec(substr($c, $m*4, 4));
$c = $bitmap_info['colors'][$c];
$color = imagecolorallocatealpha($im, $c['rgbRed'], $c['rgbGreen'], $c['rgbBlue'], $valpha);
imagesetpixel ($im, $x, $ico_size-1-$y, $color);
$off++;
}
}
break;
###################### for 01 bit icons ######################
# 198 = 22 (header) + 40 (bitmap_info) + 2 * 4 (colors) + 64 (pixels, but real 32 needed?) + 64 (mask)
case 1:
for($y=0; $y<$ico_size; $y++)
{
for($x=0; $x<$ico_size; $x++)
{
$valpha = ($alpha[$off]=='1') ? 127 : 0;
$c = ($arraycolor[floor($off/8)]); # меняем байт каждые 8 пикселей
$c = str_pad(decbin($c), 8, '0', STR_PAD_LEFT);
$m = fmod($off+8, 8) + 1; # bit number
$c = (int) substr($c, $m-1, 1);
$c = $bitmap_info['colors'][$c];
$color = imagecolorallocatealpha($im, $c['rgbRed'], $c['rgbGreen'], $c['rgbBlue'], $valpha);
imagesetpixel ($im, $x, $ico_size-1-$y, $color);
$off++;
}
$off = $off + 16;
}
break;
##############################################################
default:
return '';
}
# output png
ob_start();
# imagesavealpha($im, true);
imagepng($im);
imagedestroy($im);
$res = ob_get_clean();
}
return $res;
}
}
?>
And you can use the above PHP script with the following call:
<?php
require_once('favicon.inc.php');
$favicon = new favicon('http://www.controlstyle.ru/', 0);
$fv = $favicon->get_output_data();
if ($fv!=='')
{
header('Content-type: image/png');
echo $fv;
}
?>
What would be nice is some PHP code / script that can convert the found favicon to a GIF / JPG or PNG image so you can use it inside the HTML code.
Comments are closed.
Simple Singleton
Package:
Summary:
Create singleton objects
Groups:
Author:
Description:
This is a simple class that can be used to create singleton objects.
When requested, it can create an instance of the class itself and store it as static variable.
If the class object was already created and stored in the static variable, the class returns that object.
When requested, it can create an instance of the class itself and store it as static variable.
If the class object was already created and stored in the static variable, the class returns that object.
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[New] Free Text User Interface Programming Libraries and Source Code
Create fancy user interfaces for your text-based programs in a device independent way with these Free Text User Interface (TUI) Programming Libraries. Now you don't have to worry about supporting the wide variety of video adapters, terminals and whatnot while still adding things like windows, dialog boxes and other widgets to your programs.
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Mysql Ajax Table Editor
Mysql Ajax Table Editor is a php script that will allow you to create web pages to edit mysql tables in a matter of minutes. Similar to phpMyEdit but way better. Some of MATE's features are advanced search, order by columns, edit multiple rows, language support and join other tables.
Comments are closed.
RainTPL
Package:
Summary:
HTML template engine caches compiled results
Groups:
Author:
Description:
This package implements an HTML template engine caches compiled results.
There is a template loader class that checks whether a given template was previously compiled.
Another class is responsible for compiling a template it it was not yet processed. The results are stored as PHP scripts in a given template cache directory.
It supports variable replacement with configurable delimiters, conditional sections, sections to be ignored or not parsed and loops.
There is a template loader class that checks whether a given template was previously compiled.
Another class is responsible for compiling a template it it was not yet processed. The results are stored as PHP scripts in a given template cache directory.
It supports variable replacement with configurable delimiters, conditional sections, sections to be ignored or not parsed and loops.
Comments are closed.
zquery
Package:
Summary:
Process interaction requests using jQuery
Groups:
Author:
Description:
This class can be used process interaction requests using jQuery.
It can generate Javascript that uses the jQuery library send AJAX requests.
The class can generate Javascript calls that process the server response, show errors and debug information.
It can generate Javascript that uses the jQuery library send AJAX requests.
The class can generate Javascript calls that process the server response, show errors and debug information.
Comments are closed.
[Free] Unity: Create Your Own Game With This Professional Game Development Tool
Are you thinking of creating your own computer game? Shorten your development time with the newest game engine to be added to the Free Games Programming Libraries and Source Code. The Unity games development tool not only comes with support for graphics, animation, sound, multiplayer networking and scripting, it also ships with an integrated editor that lets you create and edit things like animation clips directly. Or if you prefer another game engine, check out the other 30 or so packages listed on the page.
Comments are closed.
Quadratic Equation Solver
Package:
Summary:
Get the roots of a quadratic equation
Groups:
Author:
Description:
This class can be used to get the roots of a quadratic equation.
It takes as parameters the coefficients a, b and c and the precision of the root values.
The class calculates the quadratic equation roots and returns them in an array.
It takes as parameters the coefficients a, b and c and the precision of the root values.
The class calculates the quadratic equation roots and returns them in an array.
Comments are closed.