Difference between revisions of "PHP"
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[http://www.pgregg.com/projects/php/preg_find/preg_find.php.txt preg_find.php] | [http://www.pgregg.com/projects/php/preg_find/preg_find.php.txt preg_find.php] | ||
====simple glob() type replacement:==== | ====simple glob() type replacement:==== | ||
<syntaxhighlight lang="php" > | |||
$files = preg_find('/./', $dir); | $files = preg_find('/./', $dir); | ||
</syntaxhighlight> | |||
====recursive?==== | ====recursive?==== | ||
<syntaxhighlight lang="php" > | |||
$files = preg_find('/./', $dir, PREG_FIND_RECURSIVE); | $files = preg_find('/./', $dir, PREG_FIND_RECURSIVE); | ||
</syntaxhighlight> | |||
====pattern match? find all .php files:==== | ====pattern match? find all .php files:==== | ||
<syntaxhighlight lang="php" > | |||
$files = preg_find('/\.php$/D', $dir, PREG_FIND_RECURSIVE); | $files = preg_find('/\.php$/D', $dir, PREG_FIND_RECURSIVE); | ||
</syntaxhighlight> | |||
====sorted alphabetically? ==== | ====sorted alphabetically? ==== | ||
<syntaxhighlight lang="php" > | |||
$files = preg_find('/\.php$/D', $dir, PREG_FIND_RECURSIVE|PREG_FIND_SORTKEYS); | $files = preg_find('/\.php$/D', $dir, PREG_FIND_RECURSIVE|PREG_FIND_SORTKEYS); | ||
</syntaxhighlight> | |||
====sorted in by filesize, in descending order?==== | ====sorted in by filesize, in descending order?==== | ||
<syntaxhighlight lang="php" > | |||
$files = preg_find('/./', $dir, | $files = preg_find('/./', $dir, | ||
PREG_FIND_RECURSIVE|PREG_FIND_RETURNASSOC |PREG_FIND_SORTFILESIZE|PREG_FIND_SORTDESC); | PREG_FIND_RECURSIVE|PREG_FIND_RETURNASSOC |PREG_FIND_SORTFILESIZE|PREG_FIND_SORTDESC); | ||
$files=array_keys($files); | $files=array_keys($files); | ||
</syntaxhighlight> | |||
====sorted by date modified?==== | ====sorted by date modified?==== | ||
<syntaxhighlight lang="php" > | |||
$files = preg_find('/./', $dir, | $files = preg_find('/./', $dir, | ||
PREG_FIND_RECURSIVE|PREG_FIND_RETURNASSOC |PREG_FIND_SORTMODIFIED); | PREG_FIND_RECURSIVE|PREG_FIND_RETURNASSOC |PREG_FIND_SORTMODIFIED); | ||
$files=array_keys($files); | $files=array_keys($files); | ||
</syntaxhighlight> |
Revision as of 07:21, 23 September 2011
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" ) || ( $A <= 12 ) ) ) {
/* code code code */
}
else
{
/* code code code */
}
- abbreviation (as in C):
(something) ? (if true do this) : (else do this)
for / foreach
switch
switch ($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
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);