PHP

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Server side

XCache

  • The eAccelerator and XCache PHP performance extensions are known to cause issues. If you're using either of those and are having problems, please disable them while you do your import. Add the following lines:
  • install (debina)
apt-get install php5-xcache
apt-get purge php-apc
vi /etc/php5/conf.d/xcache.ini
/etc/init.d/apache2 restart
  php_value eaccelerator.enable 0
  php_value xcache.cacher off
  php_value xcache.optimizer off
  • using xcache instead
[xcache.admin]
xcache.admin.enable_auth = Off
; Configure this to use admin pages
xcache.admin.user = ""
; xcache.admin.pass = "md5staffofhashfashdffsdfdfsfd"
xcache.size  =                64M
xcache.var_size  =            64M
xcache.cacher =               On
xcache.stat   =               On
xcache.optimizer =            On
xcache.coverager =          Off
  • admin gui :
cp -r /usr/sharexcache/admin/ /var/www/localhost/htdocs
http://domain/XCacheAdmin/
/etc/init.d/apache2 restart

various

  • "A PHP debugging and profiling extension"
xdebug

lenguage level

Syntax

if

 if ( ( $A != "null" ) && (( $A === "true" ) || ( $A == "true" ) || ( $A <= 12 ) ) ) {
   /* code code code */
 }
 else 
 {
   /* code code code */
 }
  • abbreviation (as in C):
 (something) ? (if true do this) : (else do this)

for / foreach

switch

 switch ($something) {
    case 0:
        echo "something is 0";
        break;
    case "hello":
        echo "something is $something";
        break;
 }

Strings

  • joining strings:
 $string1 . "string 2" . $_GLOBAL['string3'];

Array

  • basic
 Array("one", "two", "3" );
  • with index:
 Array( 1 => "one", 2 => "two", 3 => "3" );
  • 2 dimensions

functions

  • change file permissions
 chmod($file,"0664");
  • sleep seconds
 sleep( 2 ); //sleep 2 seconds
  • sleep nanoseconds
 time_nanosleep(0, 200000000); //sleep 0.2 seconds

My algorithms

Cleaning strings for links

Funzione per ripulire i titoli degli articoli da mettere nelle url
/* reference dictionary  */
  «   »   ò   ó   á   à   è   é   ù   ú   ì   í   ñ   ·   ç  :  .  ,  !   “   ”   '   '&  '  @  %  $  ?
 171,187,242,243,225,224,232,233,249,250,236,237,241,183,231,58,46,44,33,145,146,147,148,128,38,39,64,37,36,63         
 
 function UrlizzaTit( $titoloUTF ) {
 		//     Caratteri o stringhe da rimpiazzare col segno +
 	$toPlus = array(
 			chr(32),
 			chr(145),
 			chr(146),
 			chr(37),
 			chr(123),
 			chr(125),
 			chr(39),
 			chr(64),
 			chr(33),
 			chr(36),
 			chr(63),
 			";",
 			"[", 
 			"]",
 			"(",
 			")",
 			"\n",
 			"-"
 			);
 
 		//     Caratteri o stringhe da cancellare    
 
 	$toNull = array(
 			"Il ",
 			"Lo ",
 			"lo ",
 			"da ",
 			" I ",
 			" i ",
 			" l' ",
 			chr(147),
 			chr(148),
 			chr(171),
 			chr(187),
 			chr(58),
 			chr(44),
 			chr(46)
 			);  
 
 	$urlizzato1 = 	str_replace(chr(231),"c", 
 			str_replace(chr(249),"u",
 			str_replace(chr(250),"u",
 			str_replace(chr(242),"o", 
 			str_replace(chr(243),"o", 
 			str_replace(chr(225),"a",
 			str_replace(chr(224),"a",
 			str_replace(chr(232),"e",
 			str_replace(chr(233),"e",
 			str_replace(chr(128),"euro+eur",
 			str_replace(chr(236),"i",
 			str_replace(chr(237),"i",
 			str_replace(chr(241),"n",
 			str_replace(chr(38),"and", $titoloUTF ))))))))))))));   
 
 	$urlizzato2 = str_replace( $toNull, ""   , $urlizzato1 ); 
 	$urlizzato  = str_replace( $toPlus, "+"  , $urlizzato2 );  
 
 	return $urlizzato;
 }

Others algorithms

Qube @ Efnet preg_find.php

simple glob() type replacement:

 $files = preg_find('/./', $dir);

recursive?

 $files = preg_find('/./', $dir, PREG_FIND_RECURSIVE);

pattern match? find all .php files:

  $files = preg_find('/\.php$/D', $dir, PREG_FIND_RECURSIVE);

sorted alphabetically?

  $files = preg_find('/\.php$/D', $dir, PREG_FIND_RECURSIVE|PREG_FIND_SORTKEYS);

sorted in by filesize, in descending order?

 $files = preg_find('/./', $dir,
  PREG_FIND_RECURSIVE|PREG_FIND_RETURNASSOC |PREG_FIND_SORTFILESIZE|PREG_FIND_SORTDESC);
 $files=array_keys($files);

sorted by date modified?

 $files = preg_find('/./', $dir,
  PREG_FIND_RECURSIVE|PREG_FIND_RETURNASSOC |PREG_FIND_SORTMODIFIED);
 $files=array_keys($files);

parse command line argument to _GET array

parse_str(implode('&', array_slice($argv, 1)), $_GET);