How can the PHP function http_build_query() be utilized to construct URLs with parameters?

To construct URLs with parameters in PHP, the http_build_query() function can be utilized. This function takes an associative array of parameters and constructs a URL-encoded query string. This can be useful when building URLs for API requests or adding query parameters to URLs dynamically. 

$params = array(
    'param1' => 'value1',
    'param2' => 'value2',
    'param3' => 'value3'
);

$queryString = http_build_query($params);
$url = 'http://example.com/api?' . $queryString;

echo $url;

Keywords

PHP http_build_query() URL parameters query strings web development

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