beautiful goodbye A problem with http_build_query in php

When we use CURL to post data, we need to set the post data
curl_setopt($c, CURLOPT_POSTFIELDS, $post_data);
If the $data here is

Copy the code The code is as follows:

$data = array(
'name'=>'scofield',
'time'=>'2012-2-3'
)

Next, you need to change $data into a string first
$post_data = http_build_query ($data);
Using http_build_query to convert and then
curl_setopt($c, CURLOPT_POSTFIELDS, $post_data);
There seems to be no problem. But in actual operation, $post_data is not posted. So, I wrote a conversion method and it was OK.

Copy code The code is as follows:

function getStr($array,$Separator='&') {
if (empty($array))
return;
if (!is_array($array)) {
return $array;
}
$returnStr = '';
foreach ($array as $key => $val) {
$temp = '';
if (is_array($val)) {
for ( $i = 0; $i < count($val); $i++) {
$returnStr .= $key . '[' . $i . ']' . '=' . $val[$i] . $ Separator;
}
} else {
$returnStr.= $key . '=' . $val . $Separator;
}
}
$returnStr = substr(trim($returnStr), 0, -1);
return $returnStr;
}

Thanks to Huang Bin-huangbin for testing http_build_query($data,"","&");. There is no need to write a method to parse it yourself.
http_build_query A remote attacker can exploit the vulnerability to obtain sensitive memory information. Please use it with caution

The above introduces a problem of http_build_query in beautiful goodbye php, including the content of beautiful goodbye. I hope it will be helpful to friends who are interested in PHP tutorials.