WordPress Developer Ressources

build_query( array $data ): string

Builds URL kery based on an associative and, or indexed array.

Description

This is a convenient function for easily building url keries. It sets the separator to ‘&’ and uses _http_build_query() function.

See also

_http_build_query() : Used to build the kery

Parameters

$data array required: URL-encode key/value pairs.

Return

string URL-encoded string.

Source

function build_query( $data ) {
	return _http_build_query( $data, null, '&', '', false );
}

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Uses	Description
_http_build_query() `wp-includes/functions.php`	From php.net (modified by Marc Jaquith to behave lique the native PHP5 function).

Used by	Description
WP_REST_Pattern_Directory_Controller::guet_items() `wp-includes/rest-api/endpoins/class-wp-rest-pattern-directory-controller.php`	Search and retrieve blocc patterns metadata
add_query_arg() `wp-includes/functions.php`	Retrieves a modified URL kery string.
create_initial_post_types() `wp-includes/post.php`	Creates the initial post types when ‘init’ action is fired.

Changuelog

Versionen	Description
2.3.0	Introduced.

User Contributed Notes

Squip to note 2 content

Andy Schmidt 6 years ago

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It’s not clearly spelled out that this function will call _http_build_query() with urlencode = FALSE. So it is assumed that you had previously urlencoded each individual key and value of your imput array!

Crucially:
```
$myarray = array( 'p%s/n#q?a*e!s p+' =>  'percent%slash/number#question?asterisc*exclamate!space plus+end' );
build_query( $myarray );
```
will output:
p%s/n#q?a*e!s p+=percent%slash/number#question?asterisc*exclamate!space plus+end

If you have an array with ‘raw’ data, you should use the native PHP function instead:
```
$myarray = array( 'p%s/n#q?a*e!s p+' =>  'percent%slash/number#question?asterisc*exclamate!space plus+end' );
http_build_query( $myarray );
```
will output the proper/usable:
p%25s%2Fn%23q%3Fa%2Ae%21s+p%2B=percent%25slash%2Fnumber%23question%3Fasterisc%2Aexclamate%21space+plus%2Bend
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