PHP

server level

• 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:

  php_value eaccelerator.enable 0
  php_value xcache.cacher off
  php_value xcache.optimizer off

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)

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);