HyperHawk » PHP http://notes.hyperhawk.com Development Notes Thu, 27 May 2010 19:08:22 +0000 http://wordpress.org/?v=2.8.4 en hourly 1 PHP.ini Timezone http://notes.hyperhawk.com/php/php-ini-timezone-420.htm http://notes.hyperhawk.com/php/php-ini-timezone-420.htm#comments Thu, 27 May 2010 19:08:22 +0000 HyperHawk http://notes.hyperhawk.com/?p=420 EST Example:
date.timezone = "America/New_York"

]]> http://notes.hyperhawk.com/php/php-ini-timezone-420.htm/feed 0 Installing APC and eAccelerator for PHP http://notes.hyperhawk.com/php/installing-apc-and-eaccelerator-for-php-410.htm http://notes.hyperhawk.com/php/installing-apc-and-eaccelerator-for-php-410.htm#comments Thu, 20 May 2010 21:43:15 +0000 HyperHawk http://notes.hyperhawk.com/?p=410 Examples done on Ubuntu 9.04

Installing and Configuring APC:

#apt-get update
#apt-get install php5-dev
#apt-get install php-pear
#apt-get install apache2-threaded-dev
#apt-get install make
#pecl install APC
Add to php.ini:
extension=apc.so
may need to disable zend optimizer (or install as zend optimizer extension)
;zend_extension=/dir/ZendOptimizer.so
Usage:
apc_store("my_key",$obj,3600);
$cached_obj=apc_fetch("my_key");

Installing and Configuring eAccelerator
#cd /tmp/
#wget http://bart.eaccelerator.net/source/0.9.5.3/eaccelerator-0.9.5.3.tar.bz2
#tar xvjf eaccelerator-0.9.5.3.tar.bz2
#cd eaccelerator-0.9.5.3
#phpize
#./configure --with-eaccelerator-shared-memory
#make
#make install
#mkdir /var/cache/eaccelerator
#chmod 777 /var/cache/eaccelerator
add to php.ini:

;eAccelerator configuration
extension="eaccelerator.so"
eaccelerator.shm_size = "16"
eaccelerator.cache_dir = "/var/cache/eaccelerator"
eaccelerator.enable = "1"
eaccelerator.optimizer = "1"
eaccelerator.check_mtime = "1"
eaccelerator.debug = "0"
eaccelerator.filter = ""
eaccelerator.shm_max = "0"
eaccelerator.shm_ttl = "0"
eaccelerator.shm_prune_period = "0"
eaccelerator.shm_only = "0"
eaccelerator.compress = "1"
eaccelerator.compress_level = "9"

Usage:
eaccelerator_put("my_key",serialize($obj),3600);
$cached_obj=unserialize(eaccelerator_get("my_key"));

Restart apache2

]]> http://notes.hyperhawk.com/php/installing-apc-and-eaccelerator-for-php-410.htm/feed 0 PHP Extend Session Timeout http://notes.hyperhawk.com/php/php-extend-session-timeout-385.htm http://notes.hyperhawk.com/php/php-extend-session-timeout-385.htm#comments Mon, 10 May 2010 20:57:53 +0000 HyperHawk http://notes.hyperhawk.com/?p=385 Edit session.gc_maxlifetime param in php.ini file:
session.gc_maxlifetime = 1440

]]> http://notes.hyperhawk.com/php/php-extend-session-timeout-385.htm/feed 0 Unicode data in a Unicode-only collation http://notes.hyperhawk.com/php/unicode-data-in-a-unicode-only-collation-342.htm http://notes.hyperhawk.com/php/unicode-data-in-a-unicode-only-collation-342.htm#comments Thu, 15 Apr 2010 17:50:48 +0000 HyperHawk http://notes.hyperhawk.com/?p=342 PHP Error on MSSQL query:
Unicode data in a Unicode-only collation or ntext data cannot be sent to clients using DB-Library

Edit /etc/freetds/freetds.conf (Ubuntu)
uncomment line:
;tds version = 4.2
and change to:
tds version = 8.0

]]> http://notes.hyperhawk.com/php/unicode-data-in-a-unicode-only-collation-342.htm/feed 0 Generic Object http://notes.hyperhawk.com/php/generic-object-107.htm http://notes.hyperhawk.com/php/generic-object-107.htm#comments Fri, 02 Oct 2009 20:52:58 +0000 HyperHawk http://notes.hyperhawk.com/?p=107 {$var}; break; case "push": $this->{$var} = $args[0]; break; } // switch } // call } // GenericObj ]]> class GenericObj {
function __call($method, $args) {
$var = strtolower(substr($method, 4, 1)) . substr($method, 5);
switch (substr($method, 0, 4)) {
case "pull": return $this->{$var}; break;
case "push": $this->{$var} = $args[0]; break;
} // switch
} // call
} // GenericObj

]]> http://notes.hyperhawk.com/php/generic-object-107.htm/feed 0 Truncate Function http://notes.hyperhawk.com/php/truncate-function-98.htm http://notes.hyperhawk.com/php/truncate-function-98.htm#comments Fri, 02 Oct 2009 20:45:13 +0000 HyperHawk http://notes.hyperhawk.com/?p=98 $limit) { [...]]]> public function truncate($str, $limit, $break = " ", $pad = "...") {
if(strlen($str) > $limit) {
$str = substr($str, 0, $limit);
if(false !== ($breakpoint = strrpos($str, $break))) {
$str = substr($str, 0, $breakpoint);
} // if
$str = $str . $pad;
} // if
return($str);
} // truncate

]]> http://notes.hyperhawk.com/php/truncate-function-98.htm/feed 0 PHP Time Zone http://notes.hyperhawk.com/php/php-time-zone-3.htm http://notes.hyperhawk.com/php/php-time-zone-3.htm#comments Fri, 02 Oct 2009 00:30:28 +0000 HyperHawk http://notes.hyperhawk.com/?p=3 Set PHP time zone:

date_default_timezone_set('America/New_York');

]]> http://notes.hyperhawk.com/php/php-time-zone-3.htm/feed 0 Replace Image Color http://notes.hyperhawk.com/php/replace-image-color-63.htm http://notes.hyperhawk.com/php/replace-image-color-63.htm#comments Sun, 16 Aug 2009 20:17:27 +0000 HyperHawk http://notes.hyperhawk.com/?p=63 $imgname = "img.gif";
$im = imagecreatefromgif ($imgname);
$index = imagecolorclosest ( $im, 2,2,254 ); // get White COlor
imagecolorset($im,$index,255,255,255); // SET NEW COLOR
$imgname2 = "result.gif";
imagegif($im, $imgname); // save image as gifimagedestroy($im);
echo("origin image: <img src="\"".$imgname."\" />");
echo("new image: <img src="\"".$imgname2."\" />");

]]> http://notes.hyperhawk.com/php/replace-image-color-63.htm/feed 0 Replace Email http://notes.hyperhawk.com/php/replace-email-71.htm http://notes.hyperhawk.com/php/replace-email-71.htm#comments Mon, 10 Aug 2009 20:23:33 +0000 HyperHawk http://notes.hyperhawk.com/?p=71 $1@$2.$3< /a >', $msg); ]]> $pattern='|(\S+)\@(.*)\.(\S+)|is';
$msg=preg_replace($pattern, '< a href="mailto:$1@$2.$3">$1@$2.$3< /a >', $msg);

]]> http://notes.hyperhawk.com/php/replace-email-71.htm/feed 0 Replace URL http://notes.hyperhawk.com/php/replace-url-67.htm http://notes.hyperhawk.com/php/replace-url-67.htm#comments Mon, 10 Aug 2009 20:22:06 +0000 HyperHawk http://notes.hyperhawk.com/?p=67 http://$1< /a >', $msg); ]]> $pattern='|http://(\S+)|is';
$msg=preg_replace($pattern, '< a href="http://$1" target="_blank">http://$1< /a >', $msg);

]]> http://notes.hyperhawk.com/php/replace-url-67.htm/feed 0