PHP将多维数组转换为查询字符串以进行curl POST
I'm aware that curl's POSTFIELDS option will take either a query string or an associative array.
curl_setopt($curl, CURLOPT_POSTFIELDS, $_POST);
But lets say I have a page with an input like this:
<input type="text" name="address[line1]">
PHP will create a multi-dimensional array $_POST['address']['line1'], which unfortunately curl_setopt doesn't know what to do with. Is there some simple way to convert an associative array that is potentially multidimensional into a valid HTTP query string?
Alternately, is there some way to access the raw HTTP post query string like you can do with the get $_SERVER['QUERY_STRING']?
You can use http_build_query() to create a string that you can pass to cURL:
<?php
$posted = ["foo"=>"bar", "address"=>["line1"=>"foo"]];
$string = http_build_query($posted);
echo $string;
You can also get access to the raw POST data using input:// but that is rarely necessary, unless dealing with non-HTML data.