http_build_queryGenerate URL-encoded query string
&reftitle.description;
stringhttp_build_querymixedquery_datastringnumeric_prefixstringarg_separatorintenc_typePHP_QUERY_RFC1738
Generates a URL-encoded query string from the associative (or indexed)
array provided.
&reftitle.parameters;
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 but may be overridden by specifying
this parameter.
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).
&reftitle.returnvalues;
Returns a URL-encoded string.
&reftitle.changelog;
&Version;&Description;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.
&reftitle.examples;
Simple usage of <function>http_build_query</function>
'bar',
'baz'=>'boom',
'cow'=>'milk',
'php'=>'hypertext processor');
echo http_build_query($data) . "\n";
echo http_build_query($data, '', '&');
?>
]]>
&example.outputs;
<function>http_build_query</function> with numerically index elements.
'milk', 'php' =>'hypertext processor');
echo http_build_query($data) . "\n";
echo http_build_query($data, 'myvar_');
?>
]]>
&example.outputs;
<function>http_build_query</function> with complex arrays
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)
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.
Using <function>http_build_query</function> with an object
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);
?>
]]>
&example.outputs;
&reftitle.seealso;
parse_strparse_urlurlencodearray_walk