http_build_query() function is an inbuilt function in PHP. Also It is used to generate dynamic URL-encoded query string from the main associative (or indexed) array in PHP.
php Generates a URL-encoded query string from the useful data with associative (or indexed) array provided.
http_build_query syntax Description, Parameters, Return Values and Examples
syntax
string http_build_query ( mixed $query_data [, string $numeric_prefix [, string $arg_separator [, int $enc_type = PHP_QUERY_RFC1738 ]]] )
Here you can Learn to Generate URL-encoded query string Description, Parameters, Return Values and Examples.
Return Values:
It is a Data Returns a URL-encoded string.
php http_build_query Examples
Example #1 Simple usage
'xname',
'lanme'=>'w3diy',
'cname'=>'infinity',
'php'=>'programming language');
echo http_build_query($content) . "\n";
echo http_build_query($content, '', '&');
?>
The above example will results:
fname=xname&lanme=w3diy&cname=infinity&php=programming+language fname=xname&lanme=w3diy&cname=infinity&php=programming+language
Example #2 numerically index elements.
'infinity', 'php' =>'programming language'); echo http_build_query($content) . "\n"; echo http_build_query($content, 'myvar_'); ?>
The above example will results:
0=fname&1=xname&2=lanme&3=w3diy&cname=infinity&php=programming+language myvar_0=fname&myvar_1=xname&myvar_2=lanme&myvar_3=w3diy&cname=infinity&php=programming+language
Example #3 complex arrays
array('name'=>'Modi saha',
'age'=>47,
'gender'=>'M',
'dob'=>'5/12/1992'),
'hobby'=>array('play', 'dance', 'cricket', 'dev'),
'submasterren'=>array('Modiby'=>array('age'=>12,
'gender'=>'M'),
'sally'=>array('age'=>8,
'gender'=>'F')),
'HOD');
echo http_build_query($content, 'temps_');
?>
this will results : (word wrapped for readability)
member%5Bname%5D=Modi+saha&member%5Bage%5D=47&member%5Bgender%5D=M& member%5Bdob%5D=5%2F12%2F1992&hobby%5B0%5D=play&hobby%5B1%5D=dance& hobby%5B2%5D=cricket&hobby%5B3%5D=dev&submasterren%5BModiby%5D%5Bage%5D=12& submasterren%5BModiby%5D%5Bgender%5D=M&submasterren%5Bsally%5D%5Bage%5D=8& submasterren%5Bsally%5D%5Bgender%5D=F&temps_0=HOD
Note:
Only the support numerically indexed data element in the base array “HOD” received a prefix. as well as The other numeric indices, search under hobby, do not need a data content string prefix to be legal way to applay variable names.
Example #4 Using an object
pub_xname = new submasterClass();
$this->prot_xname = new submasterClass();
$this->priv_xname = new submasterClass();
}
}
class submasterClass {
public $pub = 'publicsubmaster';
protected $prot = 'protectedsubmaster';
private $priv = 'privatesubmaster';
}
$master = new masterClass();
echo http_build_query($master);
?>
The above example will results:
pub=publicmaster&pub_xname%5Bpub%5D=publicsubmaster
how to use http build query?
Answer:Build GET/POST Query based on associated array.
how to pass parameter in url in php?
here simply Pass simple array Example
45, 'search' => 'authorization'); $qs = http_build_query($vars); $url = 'http://www.domaine-name.com/search.php?' . $qs; echo $url; ?>
The above code returns this url query string –
http://www.domaine-name.com/search.php?page=48&search=authorization
how to pass value through url in php?
here Passing variables with data between pages using URL
In your app.php your echo statement must be like this:
echo 'Cpntact 2';
Passing data outside
Link to another site
Difference between GET and POST
I hope you get an idea about Generate URL-encoded query string.
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