I. Na początek
II.Instalacja i konfiguracja
III. Opis języka
IV. Bezpieczeństwo
V. Możliwości
VI. Opis funkcji
VII. Zend API
VIII. PHP API: Interfejs rozszerzeń
X. Dodatki

Manual PHP

Zapraszam do korzystania z zamieszczonego przeze mnie manuala php. Mam nadzieję, że ta jego kopia przyda się zarówno profesjonalnym programistą, jak i początkującym twórcą skryptów PHP.

Autorzy

Mehdi Achour,
Friedhelm Betz,
Antony Dovgal,
Nuno Lopes,
Philip Olson,
Georg Richter,
Damien Seguy,
Jakub Vrana,
I kilka innych

Redakcja:

Gabor Hojtsy,
Marcin Dąbrowski, Michał Grzechowiak, Leszek Krupiński, Adam Major, Paweł Paprota, Michał Pena, Sławomir Pucia, Jarek Tabor, Tomasz Wójtowicz,

preg_replace_callback

(PHP 4 >= 4.0.5, PHP 5)

preg_replace_callback -- Perform a regular expression search and replace using a callback

Description

mixed preg_replace_callback ( mixed pattern, callback callback, mixed subject [, int limit] )

The behavior of this function is almost identical to preg_replace(), except for the fact that instead of replacement parameter, one should specify a callback that will be called and passed an array of matched elements in the subject string. The callback should return the replacement string.

Przykład 1. preg_replace_callback() example

<?php
// this text was used in 2002
// we want to get this up to date for 2003
$text = "April fools day is 04/01/2002\n";
$text.= "Last christmas was 12/24/2001\n";
// the callback function
function next_year($matches)
{
  
// as usual: $matches[0] is the complete match
  // $matches[1] the match for the first subpattern
  // enclosed in '(...)' and so on
  
return $matches[1].($matches[2]+1);
}
echo
preg_replace_callback(
            
"|(\d{2}/\d{2}/)(\d{4})|",
            
"next_year",
            
$text);
// result is:
// April fools day is 04/01/2003
// Last christmas was 12/24/2002
?>

You'll often need the callback function for a preg_replace_callback() in just one place. In this case you can use create_function() to declare an anonymous function as callback within the call to preg_replace_callback(). By doing it this way you have all information for the call in one place and do not clutter the function namespace with a callback functions name not used anywhere else.

Przykład 2. preg_replace_callback() and create_function()

<?php
/* a unix-style command line filter to convert uppercase
* letters at the beginning of paragraphs to lowercase */
$fp = fopen("php://stdin", "r") or die("can't read stdin");
while (!
feof($fp)) {
    
$line = fgets($fp);
    
$line = preg_replace_callback(
        
'|<p>\s*\w|',
        
create_function(
            
// single quotes are essential here,
            // or alternative escape all $ as \$
            
'$matches',
            
'return strtolower($matches[0]);'
        
),
        
$line
    
);
    echo
$line;
}
fclose($fp);
?>

See also preg_replace(), create_function(), i informacje o typie callback.


print 'Leczenie cukrzycy 1171501764' . "\n"; print 'X-Lite 1171501977' . "\n"; print 'spodnie motocyklowe 1171501981' . "\n"; print 'komornik Jastrzębie 1171501754' . "\n"; print 'zwrot podatku z Holandii 1171501822' . "\n";