Php-find a piece of code that can use PHP to send json data

Do not copy or paste it. you cannot use functionhttp_post_data ($ url, $ strjson) {$ chcurl_init (); curl_setopt ($ ch, CURLOPT_POST, 1); curl_setopt ($ ch, CURLOPT_URL, $ url); curl_setopt ($ ch, CURLOPT_POSTFIELDS, $ strjson); curl_setopt ($ ch, CURLOPT_HTTPHEADER, array (& #39; Conte phpjson

Do not copy or paste it. it cannot be used online.
Function http_post_data ($ url, $ strjson ){

$ Ch = curl_init (); curl_setopt ($ ch, CURLOPT_POST, 1); curl_setopt ($ ch, CURLOPT_URL, $ url); curl_setopt ($ ch, CURLOPT_POSTFIELDS, $ strjson ); curl_setopt ($ ch, CURLOPT_HTTPHEADER, array ('content-Type: application/json; charset = utf-8 ', 'Content-Length :'. strlen ($ strjson); ob_start (); curl_exec ($ ch); $ return_content = response (); ob_end_clean (); $ return_code = curl_getinfo ($ ch, CURLINFO_HTTP_CODE ); return array ($ return_code, $ return_content);} I tried many of them.