URL Funkcje
PHP Manual

http_build_query

(PHP 5)

http_build_queryGenerate URL-encoded query string

Opis

string http_build_query ( mixed $query_data [, string $numeric_prefix [, string $arg_separator [, int $enc_type = PHP_QUERY_RFC1738 ]]] )

Generates a URL-encoded query string from the associative (or indexed) array provided.

Parametry

query_data

May be an array or object containing properties.

If query_data is an array, it may be a simple one-dimensional structure, or an array of arrays (which in turn may contain other arrays).

If query_data is an object, then only public properties will be incorporated into the result.

numeric_prefix

If numeric indices are used in the base array and this parameter is provided, it will be prepended to the numeric index for elements in the base array only.

This is meant to allow for legal variable names when the data is decoded by PHP or another CGI application later on.

arg_separator

arg_separator.output is used to separate arguments, unless this parameter is specified, and is then used.

enc_type

By default, PHP_QUERY_RFC1738.

If enc_type is PHP_QUERY_RFC1738, then encoding is performed per » RFC 1738 and the application/x-www-form-urlencoded media type, which implies that spaces are encoded as plus (+) signs.

If enc_type is PHP_QUERY_RFC3986, then encoding is performed according to » RFC 3986, and spaces will be percent encoded (%20).

Zwracane wartości

Returns a URL-encoded string.

Rejestr zmian

Wersja Opis
5.4.0 The enc_type parameter was added.
5.1.3 Square brackets are escaped.
5.1.2 The arg_separator parameter was added.

Przykłady

Przykład #1 Simple usage of http_build_query()

<?php
$data 
= array('foo'=>'bar',
              
'baz'=>'boom',
              
'cow'=>'milk',
              
'php'=>'hypertext processor');

echo 
http_build_query($data) . "\n";
echo 
http_build_query($data'''&amp;');

?>

Powyższy przykład wyświetli:

foo=bar&baz=boom&cow=milk&php=hypertext+processor
foo=bar&amp;baz=boom&amp;cow=milk&amp;php=hypertext+processor

Przykład #2 http_build_query() with numerically index elements.

<?php
$data 
= array('foo''bar''baz''boom''cow' => 'milk''php' =>'hypertext processor');

echo 
http_build_query($data) . "\n";
echo 
http_build_query($data'myvar_');
?>

Powyższy przykład wyświetli:

0=foo&1=bar&2=baz&3=boom&cow=milk&php=hypertext+processor
myvar_0=foo&myvar_1=bar&myvar_2=baz&myvar_3=boom&cow=milk&php=hypertext+processor

Przykład #3 http_build_query() with complex arrays

<?php
$data 
= array('user'=>array('name'=>'Bob Smith',
                            
'age'=>47,
                            
'sex'=>'M',
                            
'dob'=>'5/12/1956'),
              
'pastimes'=>array('golf''opera''poker''rap'),
              
'children'=>array('bobby'=>array('age'=>12,
                                               
'sex'=>'M'),
                                
'sally'=>array('age'=>8,
                                               
'sex'=>'F')),
              
'CEO');

echo 
http_build_query($data'flags_');
?>

this will output : (word wrapped for readability)

user%5Bname%5D=Bob+Smith&user%5Bage%5D=47&user%5Bsex%5D=M&
user%5Bdob%5D=5%2F12%2F1956&pastimes%5B0%5D=golf&pastimes%5B1%5D=opera&
pastimes%5B2%5D=poker&pastimes%5B3%5D=rap&children%5Bbobby%5D%5Bage%5D=12&
children%5Bbobby%5D%5Bsex%5D=M&children%5Bsally%5D%5Bage%5D=8&
children%5Bsally%5D%5Bsex%5D=F&flags_0=CEO

Informacja:

Only the numerically indexed element in the base array "CEO" received a prefix. The other numeric indices, found under pastimes, do not require a string prefix to be legal variable names.

Przykład #4 Using http_build_query() with an object

<?php
class parentClass {
    public    
$pub      'publicParent';
    protected 
$prot     'protectedParent';
    private   
$priv     'privateParent';
    public    
$pub_bar  Null;
    protected 
$prot_bar Null;
    private   
$priv_bar Null;

    public function 
__construct(){
        
$this->pub_bar  = new childClass();
        
$this->prot_bar = new childClass();
        
$this->priv_bar = new childClass();
    }
}

class 
childClass {
    public    
$pub  'publicChild';
    protected 
$prot 'protectedChild';
    private   
$priv 'privateChild';
}

$parent = new parentClass();

echo 
http_build_query($parent);
?>

Powyższy przykład wyświetli:

pub=publicParent&pub_bar%5Bpub%5D=publicChild

Zobacz też:


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PHP Manual