How to convert array into url parameters in php?

In PHP, you can use the built-in "http_build_query()" function to convert the array into url parameters. The "http_build_query()" function was added to php5. Its function is to convert an array or object into a url parameter and generate a "URL-encoded" request string.

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php uses the http_build_query() function to convert the array into url parameter

<?php
$data = array(
    &#39;foo&#39; => &#39;bar&#39;,
    &#39;baz&#39; => &#39;boom&#39;,
    &#39;cow&#39; => &#39;milk&#39;,
    &#39;php&#39; => &#39;hypertext processor&#39;
);

echo http_build_query($data) . "\n";
echo http_build_query($data, &#39;&#39;, &#39;&amp;&#39;);

?>

Output result:

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

http_build_query() function introduction

The function of http_build_query() function is to use the given The associative (or subscripted) array generates a URL-encoded request string.

Writing format:

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

For example:

$data = array("name"=>"callback" , "value"=>"test");
$rescult = http_build_query($data);

We can output $rescutl to get:

name=callback&value=test

What is the use of this? This is To simulate http requests, pass the obtained data data through the function URL-encode, which is usually used in callbacks.

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